ISO/IEC 18023-1 -- 5 Fundamental data types

This clause specifies the fundamental data types used within this part of ISO/IEC 18023 to specify the various DRM class instances that are to be represented. Such data types are composed of basic and constructed fundamental data types. The DRM class specifications contained in 6.2 DRM class specifications use the fundamental data types as the building blocks for creating DRM objects. The API specified in 8 Application program interface (API) uses both the data types and data class specifications to pass information between the application program and the transmittal.

5.2 Basic fundamental data types

5.2.1 Overview

More complex data types are formed from simple data types. These simple data types represent single pieces of information such as integers, floating point numbers, alphanumeric characters including strings of these, Booleans and other individual data constructs.

5.2.2 Octet

The Octet data type specifies an eight-bit field whose meaning is unknown or is determined by external factors.

5.2.3 Integers

5.2.3.1 Description

Several data types for integer numbers are provided. There are both general integer and non-negative integer data types. These are intended to correspond to signed and unsigned integer data types in programming languages.

5.2.3.2 Byte

The Byte data type specifies an integer that can represent a value in the range [-127..127].

5.2.3.3 Byte_Unsigned

The Byte_Unsigned data type specifies an integer that can represent a value in the range [0..255].

5.2.3.4 Byte_Positive

The Byte_Positive data type specifies an integer that can represent a value in the range [1..255].

5.2.3.5 Short_Integer

The Short_Integer data type specifies an integer that can represent a value in the range [-32767..32767].

5.2.3.6 Short_Integer_Unsigned

The Short_Integer_Unsigned data type specifies an integer that can represent a value in the range [0..65535].

5.2.3.7 Short_Integer_Positive

The Short_Integer_Positive data type specifies an integer that can represent a value in the range [1..65535].

5.2.3.8 Integer

The Integer data type specifies an integer that can represent a value in the range [-2 147 483 647..2 147 483 647].

5.2.3.9 Integer_Unsigned

The Integer_Unsigned data type specifies an integer that can represent a value in the range [0..4 294 967 295].

5.2.3.10 Integer_Positive

The Integer_Positive data type specifies an integer that can represent a value in the range [1..4 294 967 295].

5.2.4 Floating point numbers

5.2.4.1 Description

The floating point number fundamental data types correspond to the single-precision and double-precision floating point types specified by IEC 60559. The specific values for POSITIVE_INFINITY and NEGATIVE_INFINITY shall be supported. However, implementations on architectures that support other floating point representations are allowed and shall support POSITIVE_INFINITY and NEGATIVE_INFINITY as provided in those floating point representations.

5.2.4.2 Float

The Float data type specifies a single-precision floating point number as specified in IEC 60559.

5.2.4.3 Long_Float

The Long_Float data type specifies a double-precision floating point number as specified in IEC 60559.

5.2.5 Characters and strings

5.2.5.1 Description

Alphanumeric characters are encoded as UTF-8 as specified in ISO/IEC 10646 (otherwise known as Unicode). UTF-8 supports Latin characters single octets as specified in ISO/IEC 646 but also has the ability of representing international characters. Each character is comprised of one through six bytes as specified in ISO/IEC 10646-1. Hence, an abstract character is of variable length. A string is a list of such characters along with codes that specify how the string is to be interpreted (see 5.3.3.262 String).

5.2.5.2 Character

5.2.5.3 Character strings

Strings of characters are addressed by the String data type specified in 5.3.3.262 String and also by the String data type specified in 5.6.2.16 EDCS_String.

5.2.6 Enumerated data types

5.2.6.1 Description

An enumerated data type consists of a list of names. Each name can be a value in an instance of that data type. The names are assigned numbers whose values indicate the position within the ordered list. It is these numbers that are actually manipulated by the implementation.

The enumerated data types that are supported by this part of ISO/IEC 18023 are specified below.

5.2.6.2 Access_Mode

Table 5.2 defines the Access_Mode data type that specifies how a transmittal is to be opened.

Table 5.2 — Access_Mode values

Value	Description
READ_ONLY	The transmittal is to be opened with only read access.
UPDATE	An existing transmittal is to be opened with the ability to make changes in the content.
CREATE	A new empty transmittal is to be opened with the ability to add and subsequently change content.

5.2.6.3 Boolean

Table 5.3 — Boolean values

Value	Description
FALSE	The value of the associated field is specified to be false.
TRUE	The value of the associated field is specified to be true.

5.2.6.4 Branch_Range_Matching

Table 5.4 defines the Branch_Range_Matching data type that specifies, when evaluating the branches of a <DRM Aggregate Feature> or <DRM Aggregate Geometry> instance against a range of search values, how to evaluate the field values of a given branch’s link object against the search range, where the link object’s field values themselves specify a range of values.

Table 5.4 — Branch_Range_Matching values

Value	Description
EXACT	For a branch to be considered a match, the search value range shall exactly match the branch's value range.
FULL_CONTAINMENT	For a branch to be considered a match, the search value range shall be completely contained within the branch's value range.
INTERSECTION	For a branch to be considered a match, the search value range shall intersect the branch's value range.

5.2.6.5 Colour_Binding

Table 5.5 defines the Colour_Binding data type that specifies which type of colour inheritance is in effect within the scope of the given <DRM Rendering Properties> instance.

Table 5.5 — Colour_Binding values

Value	Description
NORMAL	The colour of a geometry attribute is specified as the default attribute binding. Attributes specified by a component shall override its parent (i.e., the last colour wins).
PARENT_OVERRIDE	This setting allows the given instance of a <DRM Geometry Representation> concrete subclass to override the default attribute binding; that is, to override any <DRM Colour> instances specified by objects in its component tree.

5.2.6.6 Continuous_LOD_Select_Choice

Table 5.6 defines the Continuous_LOD_Select_Choice data type that specifies which level (or levels) of detail are to be traversed.

Table 5.6 — Continuous_LOD_Select_Choice values

Value	Description
ALL	All levels are to be traversed.
LEAST_DETAILED	The least detailed level is to be traversed.
MOST_DETAILED	The most detailed level is to be traversed.

Continuous_LOD_Select_Choice ::= (
   ALL,
   LEAST_DETAILED,
   MOST_DETAILED )

5.2.6.7 Hierarchy_Inclusion

Table 5.7 defines the Hierarchy_Inclusion data type that specifies, for a given subclass of <DRM Aggregate Feature> or <DRM Aggregate Geometry>, whether the instances and their components are included or excluded from a search..

Table 5.7 — Hierarchy_Inclusion values

Value	Description
EXCLUDE_ALL	All instances and their components are to be excluded.
INCLUDE_ALL	All instances and their components are to be included.
EVALUATE_RULES	Instances and their components are included only if they pass a set of specified conditions.

5.2.6.8 Image_Scan_Direction

Table 5.8 defines the Image_Scan_Direction data type that specifies the manner in which an image layer is to be scanned.

Table 5.8 — Image_Scan_Direction values

Value	Major scan	Minor scan	Image origin
RIGHT_UP	left to right	bottom to top	lower left
RIGHT_DOWN	left to right	top to bottom	upper left
DOWN_RIGHT	top to bottom	left to right	upper left
DOWN_LEFT	top to bottom	right to left	upper right
LEFT_UP	right to left	bottom to top	lower right
LEFT_DOWN	right to left	top to bottom	upper right
UP_RIGHT	bottom to top	left to right	lower left
UP_LEFT	bottom to top	right to left	lower right

EXAMPLE Assume an image is displayed in a Cartesian 2D space with the positive X axis pointing right, and the positive Y axis pointing up, as shown in Figure 5.1. Further, assume an image of size W×H in this 2D space has W image elements in the X direction and H image elements in the Y direction. A scan direction of RIGHT_UP means that the image data is stored such that the first image element in memory corresponds to the (0 0) coordinate of this 2D space, and the next image elements should be displayed on the positively increasing X axis (the minor scan), until W image elements are displayed (W 0). The next image element will correspond to the (0 1) coordinate of the 2D space. Once the image element (W 1) is reached, the scan direction will continue to move from bottom to top on the positively increasing Y axis, for each successive scan line, until H lines have been accessed.

Image Scan Direction XY

Figure 5.1 — Image scan direction in X and Y

Image_Scan_Direction ::= (
   RIGHT_UP,
   RIGHT_DOWN,
   DOWN_RIGHT,
   DOWN_LEFT,
   LEFT_UP,
   LEFT_DOWN,
   UP_RIGHT,
   UP_LEFT )

5.2.6.9 Image_Scan_Direction_Z

Table 5.9 defines the Image_Scan_Direction_Z data type that specifies the manner in which image depth is to be scanned.

Table 5.9 — Image_Scan_Direction_Z values

Value	Scan direction	Image origin
NONE	Not applicable	Not applicable
Z_BACK	front to back	front
Z_FRONT	back to front	back

EXAMPLE Following the example in 5.2.6.8 Image_Scan_Direction, assume an image is displayed in a right-handed Cartesian 3D space with the positive Z axis pointed towards the viewer, as shown in Figure 5.2. A scan direction of Z_FRONT means that the image elements are organized such that successive groups of XY elements (as described in 5.2.6.8 Image_Scan_Direction) are displayed starting at Z=0 and in the direction of the positive Z axis.

Image Scan Direction Z

Figure 5.2 — Image scan direction in Z

5.2.6.10 Interval_Type

Table 5.10 defines the Interval_Type data type that specifies the type of interval for the various interval data types.

Table 5.10 — Interval_Type values

Value	Description
OPEN_INTERVAL	The interval does not include the value at each end of the interval.
GE_LT_INTERVAL	The end value of lowest value is included but the end value of highest value is not included.
GT_LE_INTERVAL	The end value of lowest value is not included but the end value of highest value is included.
CLOSED_INTERVAL	The interval includes the value at each end of the interval.
GT_SEMI_INTERVAL	The lower end value is -∞ and the upper end value is not included.
GE_SEMI_INTERVAL	The lower end value is -∞ and the upper end value is included.
LT_SEMI_INTERVAL	The lower end value is not included and the upper end value is ∞.
LE_SEMI_INTERVAL	The lower end value is included and the upper end value is ∞.

Interval_Type ::= (
   OPEN_INTERVAL,
   GE_LT_INTERVAL,
   GT_LE_INTERVAL,
   CLOSED_INTERVAL,
   GT_SEMI_INTERVAL,
   GE_SEMI_INTERVAL,
   LT_SEMI_INTERVAL,
   LE_SEMI_INTERVAL )

5.2.6.11 ITR_Behaviour

Table 5.11 defines the ITR_Behaviour data type that specifies the desired traversal for an iterator or function when an ITR reference is encountered.

Table 5.11 — ITR_Behaviour values

Value	Description
RESOLVE	ITR references are resolved automatically as they are encountered. A transmittal that has been opened in this way cannot be updated. The transmittal shall be explicitly opened for writing or modification for RESOLVE ITR_Behaviour to occur.
REPORT	ITR references are reported as they are encountered, but are not resolved.
IGNORE	ITR references are ignored and traversal acts as though the transmittal were standalone, continuing to search within the current transmittal.

5.2.6.12 LSR_Transformation_Axis

Table 5.12 defines the LSR_Transformation_Axis data type that specifies which axis to rotate around, scale by, or translate along.

Table 5.12 — LSR_Transformation_Axis values

Value	Description
U	The X axis is the axis around which a rotation is computed and along which a scale or translation is computed.
V	The Y axis is the axis around which a rotation is computed and along which a scale or translation is computed.
W	The Z axis is the axis around which a rotation is computed and along which a scale or translation is computed.
ALL	Scaling and translation occur uniformly along all axes. This value is not valid for rotation.
AXIS_REFERENCE_VECTOR	Operations are referenced to an axis specified by a <DRM Reference Vector> component of the given <DRM LSR Transformation>.

LSR_Transformation_Axis ::= (
   U,
   V,
   W,
   ALL,
   AXIS_REFERENCE_VECTOR )

5.2.6.13 Model_Reference_Type

Table 5.13 defines the Model_Reference_Type data type that specifies how a <DRM Model> intsnace is referenced within a transmittal.

Table 5.13 — Model_Reference_Type values

Value	Description
COMPONENT	The <DRM Model> instance can be referenced only as a component of other <DRM Model> instances. In this case, the <DRM Model> instance cannot be referenced directly from a <DRM Environment Root> instance.
ROOT	The <DRM Model> instance cannot be instanced by any other <DRM Model> instance. In this case, the <DRM Model> instance can be referenced from a <DRM Environment Root> instance.
ROOT_AND_COMPONENT	The <DRM Model> instance can be instanced both by other <DRM Model> instances and from a <DRM Environment Root> instance.

5.2.6.14 Month

Table 5.14 — Month values

Value	Description
JANUARY	January.
FEBRUARY	February.
MARCH	March.
APRIL	April.
MAY	May.
JUNE	June.
JULY	July.
AUGUST	August.
SEPTEMBER	September.
OCTOBER	October.
NOVEMBER	November.
DECEMBER	December.

Month ::= (
   JANUARY,
   FEBRUARY,
   MARCH,
   APRIL,
   MAY,
   JUNE,
   JULY,
   AUGUST,
   SEPTEMBER,
   OCTOBER,
   NOVEMBER,
   DECEMBER )

5.2.6.15 Object_Inclusion

Table 5.15 defines the Object_Inclusion data type that specifies how identified objects relate to a search boundary.

Value	Description
FULLY_INCLUDED	The identified object is completely inside the search boundary specified.
PARTIALLY_INCLUDED	The identified object is either completely inside the search boundary or partially overlaps the search boundary.

5.2.6.16 Octant

The identification of the octants is as shown in Figure 5.3, where left-to-right is the orientation of the first coordinate axis, front-to-back is the orientation of the second coordinate axis, and lower-to-upper is the orientation of the third coordinate axis. The naming convention is with respect to a viewer at point “f” directly facing point “h”. The plane specified by the three points “g”, “d”, and “i” represents the dividing plane between front and back with the point “f” considered to be in the front. The plane specified by the three points “n”, “j”, and “b” represents the dividing plane between left and right with the point “g” considered to be in the left. The plane specified by the three points “g”, “h”, and “k” represents the dividing plane between top and bottom with the point “d” considered to be in the bottom. Octants can be used to specify octrees [SAMET].

Octant id

Figure 5.3 — Octant identification

Octant ::= (
   UPPER_LEFT_FRONT,
   UPPER_LEFT_BACK,
   LOWER_LEFT_FRONT,
   LOWER_LEFT_BACK,
   UPPER_RIGHT_FRONT,
   UPPER_RIGHT_BACK,
   LOWER_RIGHT_FRONT,
   LOWER_RIGHT_BACK )

5.2.6.17 Point_Light_Display_Type

Table 5.16 defines the Point_Light_Display_Type data type that specifies the technology of the display used to render a set of points of light.

Table 5.16 — Point_Light_Display_Type values

Value	Description
RASTER	The light is to be rendered during the scan of the entire display.
CALLIGRAPHIC	The light is to be rendered explicitly to the portion of the display at which the point is to be produced.

5.2.6.18 Present_In

Table 5.17 — Present_In values

Value	Description
NONE	The items are not present.
ENVIRONMENT_ROOT	The items are present within the scope of one or more <DRM Environment Root> instances.
MODELS	The items are present within the scope of one or more <DRM Model> instances.
ENVIRONMENT_ROOT_AND_MODELS	The items are present within the scope of one or more <DRM Environment Root> instances and one or more <DRM Model> instances.

Present_In ::= (
   NONE,
   ENVIRONMENT_ROOT,
   MODELS,
   ENVIRONMENT_ROOT_AND_MODELS )

5.2.6.19 Quadrant

The identification of the quadrants is as shown in Figure 5.4, where left-to-right is the orientation of the first coordinate axis and front-to-back is the orientation of the second coordinate axis. The naming convention is with respect to a viewer at point “c” directly facing point “d”. The line defined by the two points “c” and “e” specifies the division between left and right with “b” considered to be in the left. The line defined by the two points “b” and “f” specifies the division between front and back with “e” considered to be in the back. Quadrants can be used to specify quadtrees [SAMET].

Quadrant ID

Figure 5.4 — Quadrant identification

5.2.6.20 Reference_Surface_Elevation_Select

Table 5.18 defines the Reference_Surface_Elevation_Select data type that specifies the rule for selecting exactly one elevation value when the reference surface specified by the <DRM Reference Surface> instance is penetrated more than once by a ray cast from the conforming point in question perpendicular to the surface of the ellipsoid component of the ORM.

Table 5.18 — Reference_Surface_Elevation_Select values

Value	Description
CLOSEST_TO_ORM_CENTRE	The intersection element to use is the one closest to the ORM centre.
CLOSEST_TO_DSS	The intersection element to use is the one closest to the designated spatial surface (DSS).
FARTHEST_FROM_ORM_CENTRE	The intersection element to use is the one farthest from the ORM centre.

Reference_Surface_Elevation_Select ::= (
   CLOSEST_TO_ORM_CENTRE,
   CLOSEST_TO_DSS,
   FARTHEST_FROM_ORM_CENTRE )

5.2.6.21 Reference_Surface_LOD_Select

Table 5.19 — Reference_Surface_LOD_Select values

Value	Description
MOST_DETAILED	The most detailed resolution is used to resolve the conforming point.
LEAST_DETAILED	The least detailed resolution is used to resolve the conforming point.

5.2.6.22 Return_Code

Table 5.20 defines the Return_Code data type that specifies the function results of API functions.

Value	Description
FAILURE	The function failed to carry out the operation.
SUCCESS	The function successfully carried out the operation.

5.2.6.23 Search_Bounds_Closure

Table 5.21 defines the Search_Bounds_Closure data type that specifies whether a spatial search area has full or partial closure.

Each Search_Bounds value specifies an enclosed region of a tessellation. The Search_Bounds_Closure data type specifies whether the top and right boundaries of the tessellation are included in the region. This is depicted in Figure 5.5 where the search bounds region on the left has a specified value of FULLY_CLOSED. Any point intersecting the top and rightmost lines shall be included. The search bounds region on the right is specified as PARTIALLY_CLOSED. Points intersecting the topmost and rightmost lines shall not be included. By assigning appropriate Search_Bounds_Closure values, it can be ensured that a point will be encompassed by only one search bounds region.

Figure 5.5 — FULLY_CLOSED and PARTIALLY_CLOSED search bounds

Table 5.21 — Search_Bounds_Closure values

Value	Description
FULLY_CLOSED	The complete boundary of the spatial extent will be used to determine if a location is within the search bounds region.
PARTIALLY_CLOSED	Only the lower end points of the spatial extent will be used to determine if a location is within the search bounds region.

5.2.6.24 Search_Dimension

Table 5.22 defines the Search_Dimension data type that specifies whether a search will return two-dimensional DRM objects, if they are present.

To ignore <DRM Location 2D> instances, Search_Dimension value THREE_DIMENSIONAL should be specified. All other searches consider <DRM Location 2D> instances in evaluating DRM objects.

This data type also specifies whether a search will consider the height components of <DRM Location 3D> instances. To ignore the height component, search dimension TWO_DIMENSIONAL_OR_SURFACE shall be specified. All other searches shall consider the height components of <DRM Location 3D> instances during evaluation.

Table 5.22 — Search_Dimension values

Value	Description
TWO_DIMENSIONAL_OR_SURFACE	Only DRM objects specified with two-dimensional or surface coordinates will be returned.
THREE_DIMENSIONAL	Only DRM objects specified with three-dimensional coordinates will be returned.
ALL_DIMENSIONS	DRM objects specified with any type of coordinates will be returned.

Search_Dimension ::= (
   TWO_DIMENSIONAL_OR_SURFACE,
   THREE_DIMENSIONAL,
   ALL_DIMENSIONS )

5.2.6.25 Sibling_Traversal_Order

Table 5.23 defines the Sibling_Traversal_Order data type that specifies the desired traversal order for various types of components that already have a logical ordering.

Value	Description
ASCENDING	Components will be traversed in ascending order.
DESCENDING	Components will be traversed in descending order.
UNSPECIFIED	No traversal order is specified; any may be used.

5.2.6.26 State_Mismatch_Behaviour

Table 5.24 — State_Mismatch_Behaviour values

Value	Description
DEFAULT	The default state shall be displayed.
LAST	The last state shall remain.
NONE	Nothing shall be displayed.

5.2.7 Selection data types

5.2.7.1 Description

The set of values of each selection data type may be extended by registration. In contrast, the set of values of an enumerated data type may not be extended by registration. Selection data types shall be implemented by each language binding in such a manner that the set of values may be extended without invalidating pre-compiled software. Selection data types are otherwise processed in the same manner as enumerated data types.

Standard meanings are assigned to positive values from 1 through 1000. Registered meanings shall be assigned to values above 1000. Each selection data type is specified in the same manner as an enumerated data type (see 5.2.6.1 Description). Such names are presented below in upper case.

An implementation may permit negative values for selection types that are not specified in this part of ISO/IEC 18023. Transmittals that use such non-standard values do not conform to this part of ISO/IEC 18023. Non-standard values may be used to test new concepts prior to standardization or registration.

5.2.7.2 API_Function

The API_Function data type specifies the names of the available transmittal API functions.

API_FUNCTION ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ADD_ASSOCIATE_RELATIONSHIP,
                   2 : ADD_COMPONENT_RELATIONSHIP,
                   3 : CLONE_OBJECT_HANDLE,
                   4 : CLOSE_TRANSMITTAL,
                   5 : CREATE_OBJECT,
                   6 : CREATE_SEARCH_FILTER,
                   7 : CREATE_SPATIAL_SEARCH_BOUNDARY,
                   8 : DETERMINE_SPATIAL_INCLUSION,
                   9 : FREE_ITERATOR,
                  10 : FREE_OBJECT,
                  11 : FREE_PACKED_HIERARCHY,
                  12 : FREE_REMAINING_OBJECTS_LIST,
                  13 : FREE_REMAINING_PACKED_HIERARCHIES_LIST,
                  14 : FREE_SEARCH_FILTER,
                  15 : FREE_SPATIAL_SEARCH_BOUNDARY,
                  16 : FREE_TRANSMITTAL,
                  17 : GET_AGGREGATE,
                  18 : GET_ASSOCIATE,
                  19 : GET_COLOUR_MODEL,
                  20 : GET_COMPONENT,
                  21 : GET_CONTEXT_TRANSFORMATION,
                  22 : GET_DATA_TABLE_DATA,
                  23 : GET_DRM_CLASS,
                  24 : GET_ENCODING,
                  25 : GET_FIELDS,
                  26 : GET_IMAGE_DATA,
                  27 : GET_ITERATION_LENGTH_REMAINING,
                  28 : GET_LAST_FUNCTION_STATUS,
                  29 : GET_MESH_FACE_TABLE_DATA,
                  30 : GET_NEXT_OBJECT,
                  31 : GET_NTH_ASSOCIATE,
                  32 : GET_NTH_COMPONENT,
                  33 : GET_NUMBER_OF_PATHS_TO_TRANSMITTAL_ROOT,
                  34 : GET_OBJECT_FROM_ID_STRING,
                  35 : GET_OBJECT_ID_STRING,
                  36 : GET_OBJECT_REFERENCE_COUNT,
                  37 : GET_PACKED_HIERARCHY,
                  38 : GET_PUBLISHED_LABELS,
                  39 : GET_PUBLISHED_OBJECT_LIST,
                  40 : GET_REFERENCED_TRANSMITTAL_LIST,
                  41 : GET_RELATION_COUNTS,
                  42 : GET_REMAINING_OBJECTS_LIST,
                  43 : GET_REMAINING_PACKED_HIERARCHIES,
                  44 : GET_ROOT_OBJECT,
                  45 : GET_SRF_INFO,
                  46 : GET_TRANSMITTAL_FROM_OBJECT,
                  47 : GET_TRANSMITTAL_LOCATION,
                  48 : GET_TRANSMITTAL_NAME,
                  49 : GET_TRANSMITTAL_VERSION_INFORMATION,
                  50 : GET_UNIQUE_TRANSMITTAL_ID,
                  51 : GET_UNRESOLVED_OBJECT_FROM_PUBLISHED_LABEL,
                  52 : GET_USER_DATA,
                  53 : INITIALIZE_AGGREGATE_ITERATOR,
                  54 : INITIALIZE_ASSOCIATE_ITERATOR,
                  55 : INITIALIXE_COMPONENT_ITERATOR,
                  56 : INITIALIZE_INHERITED_COMPONENT_ITERATOR,
                  57 : IS_ITERATOR_COMPLETE,
                  58 : OBJECT_IS_PUBLISHED,
                  59 : OBJECT_IS_RESOLVED,
                  60 : OBJECTS_ARE_SAME,
                  61 : OPEN_TRANSMITTAL_BY_LOCATION,
                  62 : OPEN_TRANSMITTAL_BY_NAME,
                  63 : PUBLISH_OBJECT,
                  64 : PUT_DATA_TABLE_DATA,
                  65 : PUT_FIELDS,
                  66 : PUT_IMAGE_DATA,
                  67 : PUT_MESH_FACE_TABLE_DATA,
                  68 : REMOVE_ASSOCIATE_RELATIONSHIP,
                  69 : REMOVE_COMPONENT_RELATIONSHIP,
                  70 : REMOVE_FROM_TRANSMITTAL,
                  71 : RESOLVE_OBJECT,
                  72 : RESOLVE_TRANSMITTAL_NAME,
                  73 : SET_COLOUR_MODEL,
                  74 : SET_FIRST_ERROR_MESSAGE,
                  75 : SET_GENERAL_CALLBACK,
                  76 : SET_GENERAL_CALLBACK_FOR_ONE_FUNCTION,
                  77 : SET_ROOT_OBJECT,
                  78 : SET_SECOND_ERROR_MESSAGE,
                  79 : SET_SPECIFIC_CALLBACK,
                  80 : SET_SRF_INFO,
                  81 : SET_TRANSMITTAL_NAME,
                  82 : SET_USER_DATA,
                  83 : TRANSMITTALS_ARE_SAME,
                  84 : UNPUBLISH_OBJECT,
                  85 : USE_DEFAULT_COLOUR_MODEL,
                  86 : USE_DEFAULT_SRF_INFO,
          [87..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.3 Axis_Alignment

Table 5.25 defines the Axis_Alignment data type that specifies how the data table cell value(s) associated with an axis tick mark align with the axis interval for a <DRM Regular Axis> instance. This relationship is depicted in Figure 5.6. Table 5.25 references the tick marks identified in Figure 5.6 (S_i is the value of the i^th tick mark).

Figure 5.6 — Axis_Alignment relationships

Table 5.25 — Axis_Alignment values

Value	Description
NONE	The i^th data table cell value is applicable to the entire interval [t_i, t_i+1).
LOWER	The i^th data table cell value is applicable at the t_i tick mark.
MEDIAN	The i^th data table cell value is applicable at the median of the t_i and t_i+1 tick marks.
UPPER	The i^th data table value is applicable at the t_i+1 tick mark.
GEOMETRIC_MEAN	The i^th data table cell value is applicable at the geometric mean of the t_i and t_i+1 tick marks. This kind of axis alignment is intended for use with GEOMETRIC spacing (see 5.2.7.42 Spacing_Type).

Axis_Alignment ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : NONE,
                   2 : LOWER,
                   3 : MEDIAN,
                   4 : UPPER,
                   5 : GEOMETRIC_MEAN,
           [6..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.4 Camera_Projection_Type

Table 5.26 defines the Camera_Projection_Type data type that specifies the type of projection that applies to a <DRM Camera Point> instance.

Table 5.26 — Camera_Projection_Type values

Value	Description
ORTHOGRAPHIC	The projection is a parallel projection in which the projection direction is parallel to the direction of the view.
PERSPECTIVE	The projection is a perspective projection in which all projector lines converge to a single point at the viewer.

Camera_Projection_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ORTHOGRAPHIC,
                   2 : PERSPECTIVE,
           [3..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.5 Colour_Model

Table 5.27 — Colour_Model values

Value	Description
RGB	Colour values are specified using the red-green-blue (RGB) colour model.
CMY	Colour values are specified using the cyan-magenta-yellow (CMY) colour model.
HSV	Colour values are specified using the hue-saturation-value (HSV) colour model.

Colour_Model ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : RGB,
                   2 : CMY,
                   3 : HSV,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.6 Data_Table_Data_Value_Type

Table 5.28 defines the Data_Table_Data_Value_Type data type that specifies the type of data that is specified in an instance of Data_Table_Data.

Table 5.28 — Data_Table_Data_Value_Type values

Value	Description
SINGLE_LONG_FLOAT	Each element of data table data is a single real attribute value of type EDCS_Long_Float.
LONG_FLOAT	Each element of data table data is a real attribute value of type EDCS_Long_Float_Value.
SINGLE_INTEGER	Each element of data table data is a single integer attribute value of type EDCS_INTEGER.
INTEGER	Each element of data table data is an integer attribute value of type EDCS_Integer_Value.
SINGLE_COUNT	Each element of data table data is a single count attribute value of type EDCS_Count.
COUNT	Each element of data table data is a count attribute value of type EDCS_Count_Value.
INDEX	Each element of data table data is an index attribute value of type EDCS_Count.
STRING	Each element of data table data is a string attribute value of type EDCS_String.
CONSTRAINED_STRING	Each element of data table data is a constrained string attribute value of type EDCS_String.
KEY	Each element of data table data is a key attribute value of type EDCS_String.
ENUMERATION	Each element of data table data is an enumerated attribute value of type EDCS_Enumerant_Code.
BOOLEAN	Each element of data table data is a boolean attribute value of type EDCS_Boolean.
INDEX_CODE	Each element of data table data is an index code of type Integer_Unsigned.

Data_Table_Data_Value_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : SINGLE_LONG_FLOAT,
                   2 : LONG_FLOAT,
                   3 : SINGLE_INTEGER,
                   4 : INTEGER,
                   5 : SINGLE_COUNT,
                   6 : COUNT,
                   7 : INDEX,
                   8 : STRING,
                   9 : CONSTRAINED_STRING,
                  10 : KEY,
                  11 : ENUMERATION,
                  12 : BOOLEAN,
                  13 : INDEX_CODE,
          [14..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.7 DRM_Class

The DRM_Class data type specifies the DRM classes supported by this part of ISO/IEC 18023.

DRM_Class ::= (
              < 1 : // implementation dependent and non-conforming,
                1 : NULL,
                2 : DRM_ABSOLUTE_TIME,
                3 : DRM_ABSOLUTE_TIME_INTERVAL,
                4 : DRM_AGGREGATE_FEATURE,
                5 : DRM_AGGREGATE_GEOMETRY,
                6 : DRM_ALTERNATE_HIERARCHY_RELATED_FEATURES,
                7 : DRM_ALTERNATE_HIERARCHY_RELATED_GEOMETRY,
                8 : DRM_AMBIENT_COLOUR,
                9 : DRM_ANIMATION_BEHAVIOUR,
               10 : DRM_ANIMATION_RELATED_GEOMETRY,
               11 : DRM_ARC,
               12 : DRM_AREAL_FEATURE,
               13 : DRM_ATTACHMENT_POINT,
               14 : DRM_AXIS,
               15 : DRM_BASE_ASSOCIATION_DATA,
               16 : DRM_BASE_LOD_DATA,
               17 : DRM_BASE_POSITIONAL_LIGHT,
               18 : DRM_BASE_SPATIAL_ASSOCIATION_DATA,
               19 : DRM_BASE_SUMMARY_ITEM,
               20 : DRM_BASE_TIME_DATA,
               21 : DRM_BLEND_DIRECTIONAL_LIGHT,
               22 : DRM_BOUNDING_VOLUME,
               23 : DRM_BROWSE_MEDIA,
               24 : DRM_CAMERA_POINT,
               25 : DRM_CC_3D_LOCATION,
               26 : DRM_CD_3D_LOCATION,
               27 : DRM_CD_SURFACE_LOCATION,
               28 : DRM_CITATION,
               29 : DRM_CLASSIFICATION_DATA,
               30 : DRM_CLASSIFICATION_RELATED_FEATURES,
               31 : DRM_CLASSIFICATION_RELATED_GEOMETRY,
               32 : DRM_CM_3D_LOCATION,
               33 : DRM_CMY_COLOUR,
               34 : DRM_CMY_COLOUR_CONTROL_LINK,
               35 : DRM_COLLISION_VOLUME,
               36 : DRM_COLOUR,
               37 : DRM_COLOUR_DATA,
               38 : DRM_COLOUR_INDEX,
               39 : DRM_COLOUR_INDEX_CONTROL_LINK,
               40 : DRM_COLOUR_SHININESS,
               41 : DRM_COLOUR_TABLE,
               42 : DRM_COLOUR_TABLE_GROUP,
               43 : DRM_COLOUR_TABLE_LIBRARY,
               44 : DRM_CONE_DIRECTIONAL_LIGHT,
               45 : DRM_CONFORMAL_BEHAVIOUR,
               46 : DRM_CONTACT_POINT,
               47 : DRM_CONTINUOUS_LOD_RELATED_GEOMETRY,
               48 : DRM_CONTROL_LINK,
               49 : DRM_CYLINDRICAL_VOLUME_EXTENT,
               50 : DRM_DATA_QUALITY,
               51 : DRM_DATA_TABLE,
               52 : DRM_DATA_TABLE_LIBRARY,
               53 : DRM_DIFFUSE_COLOUR,
               54 : DRM_DIRECTIONAL_LIGHT_BEHAVIOUR,
               55 : DRM_DISTANCE_LOD_DATA,
               56 : DRM_DRM_CLASS_SUMMARY_ITEM,
               57 : DRM_EC_AUGMENTED_3D_LOCATION,
               58 : DRM_EC_SURFACE_LOCATION,
               59 : DRM_EDCS_USE_SUMMARY_ITEM,
               60 : DRM_EDGE_DIRECTION,
               61 : DRM_EI_3D_LOCATION,
               62 : DRM_ELLIPSE,
               63 : DRM_EMISSIVE_COLOUR,
               64 : DRM_ENCLOSING_VOLUME,
               65 : DRM_ENUMERATION_AXIS,
               66 : DRM_ENVIRONMENT_ROOT,
               67 : DRM_ENVIRONMENTAL_DOMAIN_SUMMARY,
               68 : DRM_EXPRESSION,
               69 : DRM_FACE_DIRECTION,
               70 : DRM_FADE_RANGE,
               71 : DRM_FEATURE_EDGE,
               72 : DRM_FEATURE_FACE,
               73 : DRM_FEATURE_FACE_RING,
               74 : DRM_FEATURE_HIERARCHY,
               75 : DRM_FEATURE_MODEL,
               76 : DRM_FEATURE_MODEL_INSTANCE,
               77 : DRM_FEATURE_NODE,
               78 : DRM_FEATURE_REPRESENTATION,
               79 : DRM_FEATURE_TOPOLOGY,
               80 : DRM_FEATURE_TOPOLOGY_HIERARCHY,
               81 : DRM_FEATURE_VOLUME,
               82 : DRM_FEATURE_VOLUME_SHELL,
               83 : DRM_FINITE_ELEMENT_MESH,
               84 : DRM_FLASHING_LIGHT_BEHAVIOUR,
               85 : DRM_FUNCTION,
               86 : DRM_FUNCTIONAL_ASSOCIATION_DATA,
               87 : DRM_GEOMETRIC_CENTRE,
               88 : DRM_GEOMETRY_EDGE,
               89 : DRM_GEOMETRY_FACE,
               90 : DRM_GEOMETRY_HIERARCHY,
               91 : DRM_GEOMETRY_MODEL,
               92 : DRM_GEOMETRY_MODEL_INSTANCE,
               93 : DRM_GEOMETRY_NODE,
               94 : DRM_GEOMETRY_REPRESENTATION,
               95 : DRM_GEOMETRY_TOPOLOGY,
               96 : DRM_GEOMETRY_TOPOLOGY_HIERARCHY,
               97 : DRM_GEOMETRY_VOLUME,
               98 : DRM_GRID_OVERLAP,
               99 : DRM_HAEC_3D_LOCATION,
              100 : DRM_HEEC_3D_LOCATION,
              101 : DRM_HEEQ_3D_LOCATION,
              102 : DRM_HIERARCHY_DATA
              103 : DRM_HIERARCHY_SUMMARY_ITEM,
              104 : DRM_HSV_COLOUR,
              105 : DRM_HSV_COLOUR_CONTROL_LINK,
              106 : DRM_ICON,
              107 : DRM_IDENTIFICATION,
              108 : DRM_IMAGE,
              109 : DRM_IMAGE_ANCHOR,
              110 : DRM_IMAGE_LIBRARY,
              111 : DRM_IMAGE_MAPPING_FUNCTION,
              112 : DRM_IN_OUT,
              113 : DRM_INDEX_LOD_DATA,
              114 : DRM_INFINITE_LIGHT,
              115 : DRM_INLINE_COLOUR,
              116 : DRM_INTERFACE_TEMPLATE,
              117 : DRM_INTERVAL_AXIS,
              118 : DRM_IRREGULAR_AXIS,
              119 : DRM_KEYWORDS,
              120 : DRM_LABEL,
              121 : DRM_LCC_AUGMENTED_3D_LOCATION,
              122 : DRM_LCC_SURFACE_LOCATION,
              123 : DRM_LCE_3D_LOCATION,
              124 : DRM_LEGAL_CONSTRAINTS,
              125 : DRM_LIBRARY,
              126 : DRM_LIGHT_RENDERING_BEHAVIOUR,
              127 : DRM_LIGHT_RENDERING_PROPERTIES,
              128 : DRM_LIGHT_RENDERING_PROPERTIES_CONTROL_LINK,
              129 : DRM_LIGHT_SOURCE,
              130 : DRM_LIGHT_SOURCE_CONTROL_LINK,
              131 : DRM_LINE,
              132 : DRM_LINEAGE,
              133 : DRM_LINEAR_FEATURE,
              134 : DRM_LINEAR_GEOMETRY,
              135 : DRM_LITERAL,
              136 : DRM_LOBE_DATA,
              137 : DRM_LOCAL_4X4,
              138 : DRM_LOCATION,
              139 : DRM_LOCATION_2D,
              140 : DRM_LOCATION_3D,
              141 : DRM_LOCATION_SURFACE,
              142 : DRM_LOD_RELATED_FEATURES,
              143 : DRM_LOD_RELATED_GEOMETRY,
              144 : DRM_LSA_2D_LOCATION,
              145 : DRM_LSP_2D_LOCATION,
              146 : DRM_LSR_2D_LOCATION,
              147 : DRM_LSR_3D_LOCATION,
              148 : DRM_LSR_3D_LOCATION_CONTROL_LINK,
              149 : DRM_LSR_TRANSFORMATION,
              150 : DRM_LSR_TRANSFORMATION_STEP,
              151 : DRM_LTSAS_3D_LOCATION,
              152 : DRM_LTSAS_SURFACE_LOCATION,
              153 : DRM_LTSC_3D_LOCATION,
              154 : DRM_LSTC_SURFACE_LOCATION,
              155 : DRM_LTSE_3D_LOCATION,
              156 : DRM_LTSE_SURFACE_LOCATION,
              157 : DRM_M_AUGMENTED_3D_LOCATION,
              158 : DRM_M_SURFACE_LOCATION,
              159 : DRM_MAP_SCALE_LOD_DATA,
              160 : DRM_MESH_FACE_TABLE,
              161 : DRM_MODEL,
              162 : DRM_MODEL_INSTANCE_TEMPLATE_INDEX,
              163 : DRM_MODEL_LIBRARY,
              164 : DRM_MOVING_LIGHT_BEHAVIOUR,
              165 : DRM_OCTANT_DATA,
              166 : DRM_OCTANT_RELATED_FEATURES,
              167 : DRM_OCTANT_RELATED_GEOMETRY,
              168 : DRM_OMS_AUGMENTED_3D_LOCATION,
              169 : DRM_OMS_SURFACE_LOCATION,
              170 : DRM_OVERLOAD_PRIORITY_INDEX,
              171 : DRM_PARALLELEPIPED_VOLUME_EXTENT,
              172 : DRM_PD_3D_LOCATION,
              173 : DRM_PD_SURFACE_LOCATION,
              174 : DRM_PERIMETER_DATA,
              175 : DRM_PERIMETER_RELATED_FEATURE_TOPOLOGY,
              176 : DRM_PERIMETER_RELATED_FEATURES,
              177 : DRM_PERIMETER_RELATED_GEOMETRY,
              178 : DRM_PERIMETER_RELATED_GEOMETRY_TOPOLOGY,
              179 : DRM_POINT,
              180 : DRM_POINT_FEATURE,
              181 : DRM_POLYGON,
              182 : DRM_POLYGON_CONTROL_LINK,
              183 : DRM_POLYHEDRON,
              184 : DRM_POSITIONAL_LIGHT,
              185 : DRM_PREDEFINED_FUNCTION,
              186 : DRM_PRESENTATION_DOMAIN,
              187 : DRM_PRIMITIVE_COLOUR,
              188 : DRM_PRIMITIVE_FEATURE,
              189 : DRM_PRIMITIVE_GEOMETRY,
              190 : DRM_PRIMITIVE_SUMMARY_ITEM,
              191 : DRM_PROCESS_STEP,
              192 : DRM_PROPERTY,
              193 : DRM_PROPERTY_CHARACTERISTIC,
              194 : DRM_PROPERTY_DESCRIPTION,
              195 : DRM_PROPERTY_GRID,
              196 : DRM_PROPERTY_GRID_HOOK_POINT,
              197 : DRM_PROPERTY_SET,
              198 : DRM_PROPERTY_SET_INDEX,
              199 : DRM_PROPERTY_SET_INDEX_CONTROL_LINK,
              200 : DRM_PROPERTY_SET_TABLE,
              201 : DRM_PROPERTY_SET_TABLE_GROUP,
              202 : DRM_PROPERTY_SET_TABLE_LIBRARY,
              203 : DRM_PROPERTY_TABLE,
              204 : DRM_PROPERTY_TABLE_REFERENCE,
              205 : DRM_PROPERTY_TABLE_REFERENCE_CONTROL_LINK,
              206 : DRM_PROPERTY_VALUE,
              207 : DRM_PROXIMITY_DATA,
              208 : DRM_PS_AUGMENTED_3D_LOCATION,
              209 : DRM_PS_SURFACE_LOCATION,
              210 : DRM_PSEUDO_CODE_FUNCTION,
              211 : DRM_PYRAMID_DIRECTIONAL_LIGHT,
              212 : DRM_QUADRANT_DATA,
              213 : DRM_QUADRANT_RELATED_FEATURES,
              214 : DRM_QUADRANT_RELATED_GEOMETRY,
              215 : DRM_REFERENCE_ORIGIN,
              216 : DRM_REFERENCE_SURFACE,
              217 : DRM_REFERENCE_VECTOR,
              218 : DRM_REFERENCE_VECTOR_CONTROL_LINK,
              219 : DRM_REGULAR_AXIS,
              220 : DRM_RELATIVE_TIME,
              221 : DRM_RELATIVE_TIME_INTERVAL,
              222 : DRM_RENDERING_PRIORITY_LEVEL,
              223 : DRM_RENDERING_PROPERTIES,
              224 : DRM_RESPONSIBLE_PARTY,
              225 : DRM_RGB_COLOUR,
              226 : DRM_RGB_COLOUR_CONTROL_LINK,
              227 : DRM_ROLE_DATA,
              228 : DRM_ROTATING_LIGHT_BEHAVIOUR,
              229 : DRM_ROTATION,
              230 : DRM_ROTATION_CONTROL_LINK,
              231 : DRM_SCALE,
              232 : DRM_SCALE_CONTROL_LINK,
              233 : DRM_SEASON,
              234 : DRM_SEC_3D_LOCATION,
              235 : DRM_SECURITY_CONSTRAINTS,
              236 : DRM_SEDRIS_ABSTRACT_BASE,
              237 : DRM_SEPARATING_PLANE,
              238 : DRM_SEPARATING_PLANE_DATA,
              239 : DRM_SEPARATING_PLANE_RELATED_GEOMETRY,
              240 : DRM_SEPARATING_PLANE_RELATIONS,
              242 : DRM_SEQ_3D_LOCATION,
              242 : DRM_SMD_3D_LOCATION,
              243 : DRM_SME_3D_LOCATION,
              244 : DRM_SOUND,
              245 : DRM_SOUND_INSTANCE,
              246 : DRM_SOUND_INSTANCE_CONTROL_LINK,
              247 : DRM_SOUND_LIBRARY,
              248 : DRM_SOUND_VOLUME,
              249 : DRM_SOURCE,
              250 : DRM_SPATIAL_ASSOCIATION_DATA,
              251 : DRM_SPATIAL_EXTENT,
              252 : DRM_SPATIAL_INDEX_DATA,
              253 : DRM_SPATIAL_INDEX_RELATED_FEATURE_TOPOLOGY,
              254 : DRM_SPATIAL_INDEX_RELATED_FEATURES,
              255 : DRM_SPATIAL_INDEX_RELATED_GEOMETRY,
              256 : DRM_SPATIAL_INDEX_RELATED_GEOMETRY_TOPOLOGY,
              257 : DRM_SPATIAL_RESOLUTION_LOD_DATA,
              258 : DRM_SPECULAR_COLOUR,
              259 : DRM_SPHERICAL_VOLUME_EXTENT,
              260 : DRM_SPOT_LIGHT,
              261 : DRM_SRF_SUMMARY,
              262 : DRM_STAMP_BEHAVIOUR,
              263 : DRM_STATE_CONTROL_LINK,
              264 : DRM_STATE_DATA,
              265 : DRM_STATE_RELATED_FEATURES,
              266 : DRM_STATE_RELATED_GEOMETRY,
              267 : DRM_STROBING_LIGHT_BEHAVIOUR,
              268 : DRM_SURFACE_GEOMETRY,
              269 : DRM_SYMBOL,
              270 : DRM_SYMBOL_LIBRARY,
              271 : DRM_TABLE_PROPERTY_DESCRIPTION,
              272 : DRM_TACK_POINT,
              273 : DRM_TEXT,
              274 : DRM_TEXTURE_COORDINATE,
              275 : DRM_TEXTURE_COORDINATE_CONTROL_LINK,
              276 : DRM_TIME_CONSTRAINTS_DATA,
              277 : DRM_TIME_INTERVAL,
              278 : DRM_TIME_OF_DAY,
              279 : DRM_TIME_POINT,
              280 : DRM_TIME_RELATED_FEATURES,
              281 : DRM_TIME_RELATED_GEOMETRY,
              282 : DRM_TM_AUGMENTED_3D_LOCATION,
              283 : DRM_TM_SURFACE_LOCATION,
              284 : DRM_TRANSFORMATION,
              285 : DRM_TRANSLATION,
              286 : DRM_TRANSLATION_CONTROL_LINK,
              287 : DRM_TRANSLUCENCY,
              288 : DRM_TRANSLUCENCY_CONTROL_LINK,
              289 : DRM_TRANSMITTAL_ROOT,
              290 : DRM_TRANSMITTAL_SUMMARY,
              291 : DRM_TWINKLING_LIGHT_BEHAVIOUR,
              292 : DRM_UNION_OF_FEATURE_TOPOLOGY,
              293 : DRM_UNION_OF_FEATURES,
              294 : DRM_UNION_OF_GEOMETRY,
              295 : DRM_UNION_OF_GEOMETRY_HIERARCHY,
              296 : DRM_UNION_OF_GEOMETRY_TOPOLOGY,
              297 : DRM_UNION_OF_PRIMITIVE_GEOMETRY,
              298 : DRM_VARIABLE,
              299 : DRM_VERTEX,
              300 : DRM_VOLUME_EXTENT,
              301 : DRM_VOLUME_GEOMETRY,
              302 : DRM_VOLUME_LIGHT_BEHAVIOUR,
              303 : DRM_VOLUME_LOD_DATA,
              304 : DRM_VOLUME_OBJECT,
              305 : DRM_VOLUMETRIC_FEATURE,
              306 : DRM_WORLD_3X3,
              307 : DRM_WORLD_TRANSFORMATION,
      [308..1000] : // reserved for future standardization,
           > 1000 : // reserved for registration )

5.2.7.8 Element_Type_Code

Table 5.29 defines the Element_Type_Code data type that specifies the type of element code used in an Element_Type variant record.

Table 5.29 — Element_Type_Code values

Value	Description
ATTRIBUTE	The element represents an EDCS_Attribute_Code.
INDEX	The element represents an index.
VARIABLE	The element represents a variable.

Element_Type_Code ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ATTRIBUTE,
                   2 : INDEX,
                   3 : VARIABLE,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.9 Encoding

Table 5.30 defines the Encoding data type that specifies a supported encoding for transmittals.

Table 5.30 — Encoding values

Value	Description
STF	The transmittal is encoded in the transmittal Format binary encoding (STF) as specified in Part 3 of ISO/IEC 18023.

Encoding ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : STF,
           [2..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.10 Enumerated_Or_Selection_Type

This data type supports specifying an enumerated data type or selection data type that may be a search target. Only enumerated data types or selection data types used in DRM class fields are included.

Enumerated_Or_Selection_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : NULL_TYPE,
                   2 : AXIS_ALIGNMENT,
                   3 : BOOLEAN,
                   4 : CAMERA_PROJECTION_TYPE,
                   5 : CI_ROLECODE,
                   6 : COLOUR_BINDING,
                   7 : COLOUR_MODEL,
                   8 : DRM_CLASS,
                   9 : EDCS_ATTRIBUTE_CODE,
                  10 : EDCS_ATTRIBUTE_VALUE_TYPE,
                  11 : EDCS_BOOLEAN,
                  12 : EDCS_CLASSIFICATION_CODE,
                  13 : EDCS_ENUMERANT_CODE,
                  14 : EDCS_NUMERIC_VALUE_TYPE,
                  16 : EDCS_UNIT_CODE,
                  15 : EDCS_UNIT_SCALE_CODE,
                  17 : EDCS_VALUE_CHARACTERISTIC_CODE,
                  18 : ELEMENT_TYPE_CODE,
                  19 : FEATURE_TOPOLOGY_LEVEL,
                  20 : FONT_STYLE
                  21 : FUNCTIONAL_ASSOCIATION_MEANING_TYPE,
                  22 : GEOMETRIC_CENTRE_CODE,
                  23 : GEOMETRY_TOPOLOGY_LEVEL,
                  24 : GRID_OVERLAP_OPERATOR,
                  25 : HIERARCHY_SUMMARY_MULTIPLICITY_CODE,
                  26 : IMAGE_COMPONENT_TYPE,
                  27 : IMAGE_MAPPING_METHOD,
                  28 : IMAGE_PROJECTION_TYPE,
                  29 : IMAGE_SCAN_DIRECTION,
                  30 : IMAGE_SCAN_DIRECTION_Z,
                  31 : IMAGE_SIGNATURE,
                  32 : IMAGE_WRAP,
                  33 : INDEX_CODE,
                  34 : INTERPOLATION_TYPE,
                  35 : LOD_DATA_TYPE,
                  36 : LSR_TRANSFORMATION_AXIS,
                  37 : MD_KEYWORDTYPECODE,
                  38 : MD_RESTRICTIONCODE
                  39 : MEDIA_FORMAT,
                  40 : MODEL_REFERENCE_TYPE,
                  41 : MONTH,
                  42 : OCTANT,
                  43 : ORDERING_REASON,
                  44 : PIXEL_FILL_METHOD,
                  45 : POINT_LIGHT_DISLAY_TYPE,
                  46 : PREDEFINED_FUNCTION,
                  47 : PRESENT_IN,
                  48 : PROPERTY_CODE_TYPE,
                  49 : QUADRANT,
                  50 : REFERENCE_SURFACE_ELEVATION_SELECT,
                  51 : REFERENCE_SURFACE_LOD_SELECT,
                  52 : REFERENCE_VECTOR_TYPE,
                  53 : SEASON,
                  54 : SHADING_METHOD,
                  55 : SINGLE_VALUE_TYPE,
                  56 : SOUND_FORMAT,
                  57 : SPACING_TYPE,
                  58 : SPATIAL_ASSOCIATION_MEANING_TYPE,
                  59 : SPATIAL_INDEX_SPACING_UNIT,
                  60 : SRM_DSS_CODE,
                  61 : STATE_MISMATCH_BEHAVIOUR,
                  62 : SYMBOL_FORMAT,
                  63 : TIME_CONFIGURATION,
                  64 : TIME_DATA_TYPE,
                  65 : TIME_OF_DAY,
                  66 : TIME_SIGNIFICANCE,
                  67 : UNDERLINE_STYLE,
                  68 : UNION_REASON,
                  69 : VARIABLE_CODE,
          [70..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.11 Feature_Topology_Level

Table 5.31 defines the Feature_Topology_Level data type that specifies the level of feature topology if a <DRM Feature Hierarchy> instance that contains feature topology is present.

Table 5.31 — Feature_Topology_Level values

Value	Description
ZERO	Topology level ZERO. The following DRM objects and relationships shall exist: DRM objects: <DRM Feature Node> — one or more instances, and <DRM Feature Edge> — required if any <DRM Feature Face> instances exist. Relationships: A two-way association between <DRM Feature Node> instances and <DRM Feature Edge> instances: shall exist for each <DRM Feature Edge> instance that is connected to a given <DRM Feature Node> instance; and shall exist for each of the two <DRM Feature Node> instances (starting and ending node) that bound each <DRM Feature Edge> instance. Constraints: No additional constraints are required. Other types of feature topology DRM objects and relationships may exist at level ZERO, but are not required. The requirements of level ONE shall not be met. Thus, there shall be at least one pair of collocated <DRM Feature Node> instances.
ONE	Topology level ONE. No additional types of DRM objects or relationships are required. Constraints: Each <DRM Feature Node> instance shall have a <DRM Location> instance with unique coordinates. That is, no two <DRM Feature Node> instances may be collocated. The requirements of level TWO shall not be met. That is, one pair of intersecting <DRM Feature Edge> instances shall exist.
TWO	Topology level TWO. No additional types of DRM objects or relationships are required. Constraints: <DRM Feature Edge> instances may not intersect or overlap one another, except where they meet at a common <DRM Feature Node> instance. The requirements of level THREE shall not be met.
THREE	Topology level THREE. The following DRM objects and relationships shall exist, in addition to the requirements of topology level TWO. DRM objects: <DRM Feature Face> — one or more instances, and <DRM Feature Face Ring> — one or more for each <DRM Feature Face> instance. Relationships: A two-way association between <DRM Feature Node> and <DRM Feature Face> instances shall exist for each <DRM Feature Node> instance located in the interior of a <DRM Feature Face> instance. A one-way association from <DRM Feature Edge> instances to <DRM Feature Face> instances shall exist for each of the <DRM Feature Face> instances that each <DRM Feature Edge> bounds. A one-way association from <DRM Feature Face Ring> instances to <DRM Feature Edge> instances shall exist for each of the <DRM Feature Edge> instances that bound a <DRM Feature Face> instance. Constraints: <DRM Feature Face> instances may not intersect or overlap one another, except where they meet at a common <DRM Feature Edge>. The set of <DRM Feature Face> instances shall be exclusive and exhaustive, forming a complete topological surface. Each <DRM Feature Edge> instance shall bound exactly two <DRM Feature Face> instances. Exactly one <DRM Feature Face> instance within the parent <DRM Union of Feature Topology> shall have its universal field set to TRUE. All other <DRM Feature Face> instances within the parent <DRM Union of Feature Topology> shall have their universal fields set to FALSE.
FOUR	Topology level FOUR. No additional types of DRM objects or relationships are required. Constraints: <DRM Location 3D> instances are required for all coordinates. Each <DRM Feature Edge> instance may bound zero or more <DRM Feature Face> instances. This overrides the level THREE constraint. At least one <DRM Feature Edge> instance shall bound more than two <DRM Feature Face> instances.
FIVE	Topology level FIVE. The following DRM objects and relationships shall exist, in addition to the requirements of topology level FOUR. DRM objects: <DRM Feature Volume> — one or more instances, and <DRM Feature Volume Shell> — one or more instances for each <DRM Feature Volume> instance. Relationships: A two-way association between <DRM Feature Node> and <DRM Feature Volume> instances shall exist for each <DRM Feature Node> instance located in the interior of a <DRM Feature Volume> instance. A two-way association between <DRM Feature Edge> and <DRM Feature Volume> instances shall exist for each <DRM Feature Edge> instance completely located in the interior of a <DRM Feature Volume> instance. A one-way association from <DRM Feature Face> instances to <DRM Feature Volume> instances shall exist for each of the two <DRM Feature Volume> instances that each <DRM Feature Face> bounds. A one-way association from <DRM Feature Volume Shell> instances to <DRM Feature Face> instances shall exist for each of the <DRM Feature Face> instances that bound a <DRM Feature Volume> instance. Constraints: <DRM Feature Volume> instances may not intersect or overlap one another, except where they meet at a common <DRM Feature Face>. The set of <DRM Feature Volume> instances shall be exclusive and exhaustive, forming a complete topological surface. Exactly one <DRM Feature Volume> instance within the parent <DRM Union of Feature Topology> shall have its universal field set to TRUE. All other <DRM Feature Volume> instances within the parent <DRM Union of Feature Topology> shall have their universal fields set to FALSE.

Feature_Topology_Level ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ZERO,
                   2 : ONE,
                   3 : TWO,
                   4 : THREE,
                   5 : FOUR,
                   6 : FIVE,
           [7..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.12 Font_Style

Table 5.32 defines the Font_Style data type that specifies the style of font to be used.

A font family that has other styles should map those into the most appropriate of the styles available including those styles that may have been registered and are supported by the implementation.

Table 5.32 — Font_Style values

Value	Description
NORMAL	The text is displayed using the normal form specified by the font family.
BOLD	The text is displayed using the bold form specified by the font family.
ITALIC	The text is displayed using the italic form specified by the font family.
BOLD_ITALIC	The text is displayed using the form specified by the font family that is both bold and italic.

Font_Style ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : NORMAL,
                   2 : BOLD,
                   3 : ITALIC,
                   4 : BOLD_ITALIC,
           [5..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.13 Functional_Association_Meaning_Type

Table 5.33 defines the Functional_Association_Meaning_Type data type that specifies the meaning of functional association data. The DRM objects cited below correspond to the environmental objects that have the functional association.

Table 5.33 — Functional_Association_Meaning_Type values

Value	Description
CONTROLS	The association indicates that the associating DRM object exerts a controlling influence over the associated DRM object that affects the state, attribution, or position of the associated DRM object.
CONTROLLED_BY	The association is the inverse of CONTROLS indicating that the state, attribution, or position of the associating object is affected by the associated DRM object.
SUPPORTS	The association indicates that the associating DRM object exerts a force that acts to keep the associated DRM object in its position.
SUPPORTED_BY	The association is the inverse of SUPPORTS indicating that the associating DRM object is kept in its position by a force exerted by the associated DRM object.
ATTACHED	The association indicates that the associating DRM object is attached to the associated DRM object.

Functional_Association_Meaning_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : CONTROLS,
                   2 : CONTROLLED_BY,
                   3 : SUPPORTS,
                   4 : SUPPORTED_BY,
                   5 : ATTACHED,
           [6..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.14 Geometric_Centre_Code

Table 5.34 — Geometric_Centre_Code values

Value	Description
CENTRE_OF_BUOYANCY	The value represents the centre of buoyancy.
CENTRE_OF_MASS	The value represents the centre of mass.
CENTRE_OF_PRESSURE	The value represents the centre of pressure.

Geometric_Centre_Code ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : CENTRE_OF_BUOYANCY,
                   2 : CENTRE_OF_MASS,
                   3 : CENTRE_OF_PRESSURE,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.15 Geometry_Topology_Level

Table 5.35 defines the Geometry_Topology_Level data type that specifies, for a given <DRM Geometry Topology Hierarchy> instance, the level of geometry topology that is present.

Table 5.35 — Geometry_Topology_Level values

Value	Description
ZERO	Topology level ZERO. The following DRM objects, and relationships among those DRM objects, shall exist: DRM objects: <DRM Geometry Node> — one or more instances, and <DRM Geometry Edge> — required if any <DRM Geometry Face> instances exist. Relationships: A two-way association between <DRM Geometry Node> instances and <DRM Geometry Edge> instances shall exist for: each <DRM Geometry Edge> instance that is connected to a given <DRM Geometry Node> instance; and each of the two <DRM Geometry Node> instances (starting and ending node) that bound each <DRM Geometry Edge> instance. Constraints: No additional constraints are required. Other types of geometry topology objects and relationships may exist at level ZERO, but are not required. The requirements of level ONE shall not be met. Thus, there shall be at least one pair of collocated <DRM Geometry Node> instances.
ONE	Topology level ONE. No additional types of DRM objects or relationships are required. Constraints: The <DRM Point> instances corresponding to each <DRM Geometry Node> shall have <DRM Location> instances with unique coordinates. That is, no two <DRM Geometry Node> instances may be collocated. The requirements of level TWO shall not be met. That is, one pair of intersecting <DRM Geometry Edge> instances shall exist.
TWO	Topology level TWO. No additional types of DRM objects or relationships are required. Constraints: The <DRM Linear Geometry> instances corresponding to <DRM Geometry Edge> instances may not intersect or overlap one another except where they meet at a <DRM Point> instance corresponding to a common <DRM Geometry Node> instance. The requirements of level THREE shall not be met.
THREE	Topology level THREE. The following DRM objects and relationships shall exist, in addition to the requirements of topology level TWO. DRM objects: <DRM Geometry Face> — one or more instances Relationships: A two-way association between <DRM Geometry Node> and <DRM Geometry Face> instances shall exist for each <DRM Geometry Node> instance located in the interior of a <DRM Geometry Face> instance. A one-way assocation from <DRM Geometry Edge> instances to <DRM Geometry Face> instances shall exist for each of the <DRM Geometry Face> instances that each <DRM Geometry Edge> bounds. Constraints: The <DRM Surface Geometry> instances corresponding to <DRM Geometry Face> instances shall not intersect or overlap one another except where they meet at a <DRM Linear Geometry> instance corresponding to a common <DRM Geometry Edge> instance. Each <DRM Geometry Edge> instance shall bound exactly two <DRM Geometry Face> instances.
FOUR	Topology level FOUR. No additional types of DRM objects or relationships are required. Constraints: Each <DRM Geometry Edge> instance may bound zero or more <DRM Geometry Face> instances. This overrides the level THREE constraint. At least one <DRM Geometry Edge> instance shall bound more than two <DRM Geometry Face> instances.
FIVE	Topology level FIVE. The following DRM objects and relationships shall exist, in addition to the requirements of topology level FOUR. DRM objects: <DRM Geometry Volume> — one or more instances. Relationships: A two-way association between <DRM Geometry Node> and <DRM Geometry Volume> instances shall exist for each <DRM Geometry_Node> instance located in the interior of a <DRM Geometry Volume> instance. A two-way association between <DRM Geometry Edge> and <DRM Geometry Volume> instances shall exist for each <DRM Geometry Edge> instance completely located in the interior of a <DRM Geometry Volume> instance. A one-way association from <DRM Geometry Face> instances to <DRM Geometry Volume> instances shall exist for each of the two <DRM Geometry Volume> instances that each <DRM Geometry Face> bounds. Constraints: The <DRM Volume Geometry> instances corresponding to <DRM Geometry Volume> instances may not intersect or overlap one another, except where they meet at a <DRM Surface Geometry> instance corresponding to a common <DRM Geometry Face> instance.

Geometry_Topology_Level ::=(
                 < 1 : // implementation dependent and non-conforming,
                   1 : ZERO,
                   2 : ONE,
                   3 : TWO,
                   4 : THREE,
                   5 : FOUR,
                   6 : FIVE,
           [7..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.16 Grid_Overlap_Operator

Table 5.36 defines the Grid_Overlap_Operator data type that specifies how overlapping <DRM Property Grid> instances shall be interpreted.

Table 5.36 — Grid_Overlap_Operator values

Value	Description
BASE	The base value is used.
REPLACE	The base value is replaced by the overlapped value.
MERGE	The description of the merge method is specified in the supplemental_information field of the <DRM Identification> instance associated with the <DRM Data Table> aggregate.
ADD	The overlapped value is added to the base value.
AVERAGE	The overlapped value and the base value are averaged.

Grid_Overlap_Operator ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : BASE,
                   2 : REPLACE,
                   3 : MERGE,
                   4 : ADD,
                   5 : AVERAGE,
           [6..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.17 Hierarchy_Summary_Multiplicity_Code

Table 5.37 defines the Hierarchy_Summary_Multiplicity_Code data type that specifies the multiplicity for DRM objects specified in an instance of <DRM Hierachy Summary Item>.

Table 5.37 — Hierarchy_Summary_Multiplicity_Code values

Value	Description
EXACT	The multiplicity represents exactly how many instances of the specified DRM class it represents.
ORDER_OF_MAGNITUDE	The multiplicity represents approximately the order of magnitude of the actual multiplicity. EXAMPLES 10, 100..1000, and 10000.
UNKNOWN	DRM objects of the specified DRM class are present but the multiplicity is unknown.

Hierarchy_Summary_Multiplicity_Code ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : EXACT,
                   2 : ORDER_OF_MAGNITUDE,
                   3 : UNKNOWN,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.18 Image_Component_Type

Table 5.38 defines the Image_Component_Type data type that specifies whether the components of a texel for a <DRM Image> instance are represented as signed integers, unsigned integers, or floating point numbers.

Table 5.38 — Image_Component_Type values

Value	Description
SIGNED_INTEGER	Each texel is represented by signed integer values.
UNSIGNED_INTEGER	Each texel is represented by unsigned integer values.
FLOATING_POINT	Each texel is represented by floating point values.

Image_Component_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : SIGNED_INTEGER,
                   2 : UNSIGNED_INTEGER,
                   3 : FLOATING_POINT,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.19 Image_Mapping_Method

Table 5.39 defines the Image_Mapping_Method data type that specifies how the image is blended with the background when the image is being used as a texture map.

Table 5.39 — Image_Mapping_Method values

Value	Description
REPLACE	For REPLACE image mapping method, no calculations are needed; the colour and alpha (derived from a <DRM Translucency> instance) of the <DRM Image> instance completely replace the original colour and alpha of the DRM object, if any.
DECAL	For DECAL image mapping method, the <DRM Image> instance is rendered on top of anything in the existing rendering, like a decal. For images with image signature ALPHA, LUMINANCE, or LUMINANCE_ALPHA: The results are not specified. For images with image signature 123COLOUR: displayed colour = image colour displayed alpha = original DRM object alpha For images with image signature 123COLOUR_ALPHA: displayed colour = (1 - image alpha) × original DRM object colour + (image alpha × image colour) displayed alpha = original DRM object alpha
MODULATE	For MODULATE image mapping method, the <DRM Image> instance’s luminance (or colour) and alpha are linearly combined with those of the original DRM object. For images with image signature LUMINANCE: displayed colour = image luminance × original DRM object colour displayed alpha = original object alpha For images with image signature ALPHA: displayed colour = original DRM object colour displayed alpha = original DRM object alpha × image alpha For images with image signature LUMINANCE_ALPHA: displayed colour = image luminance × original DRM object colour displayed alpha = original DRM object alpha × image alpha For images with image signature 123COLOUR: displayed colour = image colour × original DRM object colour displayed alpha = original DRM object alpha For images with image signature 123COLOUR_ALPHA: displayed colour = image colour × original DRM object colour displayed alpha = image alpha × original DRM object alpha
BLEND	For BLEND image mapping method, the image blend colour of the DRM object determines how the <DRM Image> instance is combined with the DRM object’s primary colour. For images with image signature LUMINANCE: displayed colour = (1 - image luminance) × original DRM object colour + (image luminance × blend colour) displayed alpha = original DRM object alpha For images with image signature ALPHA: displayed colour = original DRM object colour displayed alpha = original DRM object alpha × image alpha For images with image signature LUMINANCE_ALPHA: displayed colour = (1 - image luminance) × original DRM object colour + (image luminance × blend colour) displayed alpha = original DRM object alpha × image alpha For images with image signature 123COLOUR: displayed colour = (1 - image colour) × original DRM object colour + (blend colour × image colour) displayed alpha = original DRM object alpha For images with image signature 123COLOUR_ALPHA: displayed colour = (1 - image colour) × original DRM object colour + (blend colour × image colour) displayed alpha = original DRM object alpha × image alpha

Image_Mapping_Method ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : REPLACE,
                   2 : DECAL,
                   3 : MODULATE,
                   4 : BLEND,
           [5..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.20 Image_Projection_Type

Table 5.40 defines the Image_Projection_Type data type that specifies the projection to be used when applying image instances to textured DRM objects.

Value	Description
PLANAR	This value specifies that the <DRM Image> instance is to be applied to a planar surface.
CYLINDRICAL	This value specifies that the <DRM Image> instance is to be warped to a cylindrical shape as specified by the <DRM Image Anchor> instance. For this case, the textured object does not have <DRM Texture Coordinate> instances or <DRM Tack Point> instances; <DRM Image Anchor> instances are provided by either the <DRM Image Mapping Function> instance or the <DRM Image> instance itself.
SPHERICAL	This value specifies that the <DRM Image> instance is to be warped to a spherical shape as specified by the <DRM Image Anchor> instance. For this case, the textured object does not have <DRM Texture Coordinate> instances or <DRM Tack Point> instances; <DRM Image Anchor> instances are provided by either the <DRM Image Mapping Function> instance or the <DRM Image> instance itself.

Image_Projection_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : PLANAR,
                   2 : CYLINDRICAL,
                   3 : SPHERICAL,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.21 Image_Signature

Table 5.41 defines the Image_Signature data type that specifies how many texels are represented within a <DRM Image> instance.

Table 5.41 — Image_Signature values

Value	Description
ALPHA	This value is used to indicate that each texel in the <DRM Image> instance consists of an alpha value, representing the coverage of the texel. An alpha of 0,0 indicates that the texel is transparent, while an alpha of 1,0 indicates that the texel is opaque. A <DRM Image> instance with this signature may be called an alpha channel or an alpha map. For further details, see [FOLEY]. Note that an alpha map can be composited with: a compatible 123_COLOUR <DRM Image> instance to produce a 123COLOUR_ALPHA texture map; compatible COLOUR_COORDINATE_1, COLOUR_COORDINATE_2, and COLOUR_COORDINATE_3 <DRM Image> instances to produce a 123COLOUR_ALPHA texture map; or a compatible LUMINANCE <DRM Image> instance to produce a LUMINANCE_AND_ALPHA texutre map. FURTHER CONSTRAINTS: bits_of_alpha shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx) fields shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instances can legally provide an alpha texture map. (Multiple alpha texture maps produce an unspecified result.)
LUMINANCE	This value is used to indicate that the <DRM Image> instance specifies only luminance (also termed intensity) values that form a grey scale image, with no colour values. A LUMINANCE <DRM Image> instance can be composited with a compatible ALPHA image to produce a LUMINANCE_AND_ALPHA <DRM Image> instance. EXAMPLE An example of compositing LUMINANCE <DRM Image> instances is the case of large areas of terrain <DRM Polygon> instances, where the same textures for dirt are repeated over and over. To avoid creating a “quilt” effect on the terrain, a LUMINANCE <DRM Image> instance can be composited with the terrain (using different offsets at different locations to make the effect appear random) to randomize the textures and give the terrain a more realistic appearance. FURTHER CONSTRAINTS: bits_of_luminance shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero.
COLOUR_COORDINATE_1	This value is used to indicate that each texel in the <DRM Image> instance consists of one colour component, namely the first for its colour model (R for RGB, C for CMY , or H for HSV ). The first colour component of the colour model shall be the only value in the texel. Note that a COLOUR_COORDINATE_1 <DRM Image> instance can be composited with compatible COLOUR_COORDINATE_2 and COLOUR_COORDINATE_3 <DRM Image> instances of the same dimensions to produce a 123_COLOUR <DRM Image> instance. (These can also be composited with a compatible alpha texture map to produce a 123COLOUR_ALPHA texture map.) FURTHER CONSTRAINTS: bits_of_colour_coordinate_1 shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instance can be associated with a COLOUR_COORDINATE_1 <DRM Image> instance. (Multiple COLOUR_COORDINATE_1 <DRM Image> instances produce an unspecified result.) EXAMPLE 1 An RGB texel will have red as the texel value. EXAMPLE 2 A CMY texel will have cyan as the texel value. EXAMPLE 3 An HSV texel will have hue as the texel value.
COLOUR_COORDINATE_2	This value is used to indicate that each texel in the <DRM Image> instance consists of one colour component, namely the second for its colour model (G for RGB, M for CMY , or S for HSV). The second colour component of the colour model shall be the only value in the texel. Note that a COLOUR_COORDINATE_1 <DRM Image> instance can be composited with compatible COLOUR_COORDINATE_2 and COLOUR_COORDINATE_3 <DRM Image> instances of the same dimensions to produce a 123_COLOUR <DRM Image> instance. These can also be composited with a compatible alpha map to produce a 123COLOUR_ALPHA map. FURTHER CONSTRAINTS: bits_of_colour_coordinate_2 shall equal the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instances can be associated with a COLOUR_COORDINATE_2 <DRM Image> instance. Multiple COLOUR_COORDINATE_2 <DRM Image> instances produce an unspecified result. EXAMPLES An RGB texel will have green as the texel value. A CMY texel will have magenta as the texel value. An HSV texel will have saturation as the texel value.
COLOUR_COORDINATE_3	This value is used to indicate that each texel in the <DRM Image> instance consists of one colour component, namely the third for its colour model (B for RGB, Y for CMY, or V for HSV). The third colour component of the colour model shall be the only value in the texel. Note that a COLOUR_COORDINATE_1 <DRM Image> instance can be composited with compatible COLOUR_COORDINATE_2 and COLOUR_COORDINATE_3 <DRM Image> instances of the same dimensions to produce a 123_COLOUR <DRM Image> instance. (These can also be composited with a compatible alpha map to produce a 123COLOUR_ALPHA map.) FURTHER CONSTRAINTS: bits_of_colour_coordinate_3 shall specify the size per texel in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instances can be associated with a COLOUR_COORDINATE_3 <DRM Image> instance. Multiple COLOUR_COORDINATE_3 <DRM Image> instances produce an unspecified result. EXAMPLE 1 An RGB texel will have blue as the texel value. EXAMPLE 2 A CMY texel will have yellow as the texel value. EXAMPLE 3 An HSV texel will have brightness value as the texel value.
BUMP_MAP_HEIGHT	This value is used to indicate that the <DRM Image> instance represents a 2D height bump map (or just height map), specifying information used to modify the surface normals of a smooth surface. When used with a ray-tracing technique, bump mapping introduces variations in intensity across the surface, so that it simulates a rough, wrinkled, or dimpled surface (e.g., the surface of the ocean). A UV type of bump map can be derived from a height bump map by computing the texel gradients in both the X and Y directions. Rather than manipulating the colour of a flat surface, bump mapping modifies the physical texture of the surface. For a description of bump mapping, see Section 7.8 “Bump Mapping” of [WATT]. FURTHER CONSTRAINTS: bits_of_bump_map_height shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instances can legally provide a bump map. Multiple bump maps produce an unspecified result.
EDCS_CLASSIFICATION_CODE	This value is used to indicate that each texel in the <DRM Image> consists of one ECC value. FURTHER CONSTRAINTS: The size per texel shall be the size of an EDCS_Classification_Code. All bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero.
LUMINANCE_AND_ALPHA	This value is used to indicate that the <DRM Image> instance is a composite of a luminance <DRM Image> instance and an alpha <DRM Image> instance (see ALPHA and LUMINANCE ). Each texel consists of an intensity value followed by an alpha value. No other ordering is possible with this signature. A LUMINANCE_AND_ALPHA <DRM Image> instance can be down-sampled to produce an ALPHA <DRM Image> instance and a LUMINANCE <DRM Image> instance. FURTHER CONSTRAINTS: bits_of_luminance + bits_of_alpha shall specify the size per texel (in bits) for the corresponding value; all other bits_of_xxx fields shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instances can legally provide a luminance and alpha map. Multiple alpha maps produce an unspecified result.
123COLOUR	This value is used to indicate that each texel in the <DRM Image> instance consists of three colour components (RGB, CMY, or HSV). The first colour component of the colour model shall be the first value in the texel, the second colour component of the colour model shall be the second value in the texel, and the third colour component of the colour model shall be the third value in the texel. No other ordering is possible with this signature. Note that a 123COLOUR <DRM Image> instance can be down-sampled to produce a COLOUR_COORDINATE_1, COLOUR_COORDINATE_2, or COLOUR_COORDINATE_3 <DRM Image> instance. FURTHER CONSTRAINTS: bits_of_first_colour + bits_of_second_colour + bits_of_third_colour shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instances can be associated with a 123COLOUR map <DRM Image> instance. Multiple 123COLOUR maps produce an unspecified result. EXAMPLE 1 An RGB texel shall have red as the first value in the texel, green next and finally blue. EXAMPLE 2 A CMY texel shall have cyan as the first value in the texel, magenta next, and finally yellow. EXAMPLE 3 An HSV texel shall have hue as the first value in the texel, saturation next and finally brightness value.
123COLOUR_ALPHA	This value is used to indicate that each texel in the <DRM Image> instance consists of three colour components (RGB, CMY, or HSV) and an alpha value. The first colour component of the colour model shall be the first value in the texel, the second colour component of the colour model shall be the second value in the texel, the third colour component of the colour model shall be the third value in the texel, and the alpha value shall be the last value in the texel. No other ordering is possible with this signature. Note that a 123COLOUR_ALPHA <DRM Image> instance can be down-sampled to produce a COLOUR_COORDINATE_1, COLOUR_COORDINATE_2, COLOUR_COORDINATE_3, and/or ALPHA <DRM Image> instances. FURTHER CONSTRAINTS: bits_of_first_colour + bits_of_second_colour + bits_of_third_colour + bits_of_alpha shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instances can be associated with a 123COLOUR and alpha map <DRM Image> instance. Multiple 123COLOUR and alpha maps produce an unspecified result. EXAMPLE 1 An RGBA texel shall have red as the first value in the texel, green next, then blue, and finally alpha. EXAMPLE 2 A CMYA texel shall have cyan as the first value in the texel, magenta next, then yellow, and finally alpha. EXAMPLE 3 An HSVA texel shall have hue as the first value in the texel, saturation next, then brightness value, and finally alpha.
ONE_MATERIAL	This value is used to indicate that each texel in the <DRM Image> instance consists of one value, an index into the <DRM Property Table> instances referenced by this <DRM Image> instance. These <DRM Property Table> instances describe the material. Normally, a <DRM Property Table Reference> instance is used to find the corresponding <DRM Property Table> instance’s data_table_type, to which the <DRM Axis> instance is referred, and which hash value measurement along that <DRM Axis> instance is being referenced. The bits_of_material_1 field is used in place of the <DRM Property Table Reference> instance’s index_on_axis field values. See the examples for the <DRM Image> class. FURTHER CONSTRAINTS: The <DRM Image> instance shall have at least one <DRM Property Table Reference> instance. There is no limit to the number of <DRM Property Table Reference> instances but there shall be at least one. All the <DRM Property Table> instances being referred to by the <DRM Property Table Reference> instance shall be of the same size, since the material reference corresponds to all of them. bits_of_material_1 shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero.
TWO_MATERIALS	This value is used to indicate that each texel in the <DRM Image> instance represents a linear combination of two materials in the <DRM Property Table> instances referenced by this <DRM Image> instance. That is, each texel consists of three values: two indexes into the <DRM Property Table> instances referenced by this <DRM Image> instance, and the percentage (an integer between 0% and 100%) of material_2. These <DRM Property Table> instances describe the materials. Normally, a <DRM Property Table Reference> instance is used to find the corresponding <DRM Property Table> instance’s data_table_type, to which the <DRM Axis> instance is referred, and which hash value measurement along that <DRM Axis> instance is being referenced. The bits_of_material_1 and bits_of_material_2 fields are used in place of the <DRM Property Table Reference> instances’ index_on_axis field values. See the examples for the <DRM Image> class. FURTHER CONSTRAINTS: The <DRM Image> instance shall have at least one <DRM Property Table Reference> instance. There is no limit to the number of <DRM Property Table Reference> instances but there shall be at least one. All the <DRM Property Table> instances to which the <DRM Property Table Reference> instances refer shall be of the same size, since the material reference corresponds to all of them. bits_of_material_1 + bits_of_material_2 + bits_of_material_2_percentage shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero.
THREE_MATERIALS	This value is used to indicate that each texel in the <DRM Image> instance represents a linear combination of three materials in the <DRM Property Table> instances referenced by this <DRM Image> instance . That is, each texel consists of four values: three indices into the <DRM Property Table> instances referenced by this <DRM Image> instance , and the percentages (integers between 0% and 100%) of material_2 and material_3. These <DRM Property Table> instances describe the materials. Normally, a <DRM Property Table Reference> instance is used to find the corresponding <DRM Property Table> instance’s data_table_type, to which a <DRM Axis> instance is referred, and which hash value measurement along that <DRM Axis> instance is being referenced. The bits_of_material_1, bits_of_material_2, and bits_of_material_3 fields are used in place of the <DRM Property Table Reference> instances’ index_on_axis field values. See the examples for the <DRM Image> class. FURTHER CONSTRAINTS: The <DRM Image> instance shall have at least one <DRM Property Table Reference> instance. There is no limit to the number of <DRM Property Table Reference> instances but there shall be at least one. All the <DRM Property Table> instances being referred to by the <DRM Property Table Reference> instance shall be of the same size, since the material reference corresponds to all of them. bits_of_material_1 + bits_of_material_2 + bits_of_material_2_percentage + bits_of_material_3 + bits_of_material_3_percentage shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero.
IMAGE_INDEX	This is used to indicate that the <DRM Image> instance consists of references to other <DRM Image> instances (i.e., each texel within the <DRM Image> instance is the index of another <DRM Image> instance). This mechanism allows A <DRM Image> instance to define high-resolution insets. Each texel is to be replaced by the entire <DRM Image> instance identified by the <DRM Image> instance whose index is specified by that texel. This allows data providers to create a large <DRM Image> instance formed by many smaller <DRM Image> instances. The index is an index into the <DRM Image Library> instance containing this <DRM Image> instance. FURTHER CONSTRAINTS: bits_of_image_index shall specify the size per texel, while all other bits_of_xxx fields (and their corresponding min_value_of_xxx and max_value_of_xxx fields) shall be zero. Each texel within the <DRM Image> instance shall resolve to a valid index within the <DRM Image Library> instance containing this image, but neither directly nor via other IMAGE_INDEX <DRM Image> instances to the index of this <DRM Image> instance. All referenced <DRM Image> instances shall have the same values as the main <DRM Image> instance for colour_model, data_is_little_endian, data_is_3D, component_data_type, scan_direction, and scan_direction_z. All referenced <DRM Image> instances shall have either the same image signature X, or IMAGE_INDEX that resolves to referenced images with signature X, so that the main <DRM Image> instance can be resolved to a single image signature.
BUMP_MAP_UV	This value specifies that the <DRM Image> instance represents a bump map in UV space, specifying information used to modify the surface normals of a smooth surface. See BUMP_MAP_HEIGHT for further information on bump maps. FURTHER CONSTRAINTS: (bits_of_bump_map_u + bits_of_bump_map_v) shall specify the size per texel (in bits); all other bits_of_xxx fields (and their corresponding minimum_value_of_xxx and maximum_value_of_xxx fields) shall be zero. When an object has k <DRM Image Mapping Function> instances providing its texture mapping information, at most one of the k <DRM Image Mapping Function> instances can legally provide a bump map. Multiple bump maps produce an unspecified result.

Image_Signature ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ALPHA,
                   2 : LUMINANCE,
                   3 : COLOUR_COORDINATE_1,
                   4 : COLOUR_COORDINATE_2,
                   5 : COLOUR_COORDINATE_3,
                   6 : BUMP_MAP_HEIGHT,
                   7 : EDCS_CLASSIFICATION_CODE,
                   8 : LUMINANCE_AND_ALPHA,
                   9 : 123COLOUR,
                  10 : 123COLOUR_ALPHA,
                  11 : ONE_MATERIAL,
                  12 : TWO_MATERIALS,
                  13 : THREE_MATERIALS,
                  14 : IMAGE_INDEX,
                  15 : BUMP_MAP_UV,
          [16..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.22 Image_Wrap

Table 5.42 defines the Image_Wrap data type that specifies how texture mapping is handled when the boundary of an image is reached.

Table 5.42 — Image_Wrap values

Value	Description
CLAMP	Texture coordinates in the image space are clamped to the value range [0,0..1,0]. Negative texture coordinate values are mapped to 0,0, while values greater than 1,0 are mapped to 1,0.
REPEAT	The image space is considered to extend to infinity; the image is repeated in a tiled manner.

Image_Wrap ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : CLAMP,
                   2 : REPEAT,
           [3..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.23 Index_Code

Table 5.43 defines the Index_Code data type that specifies the type of index used in an Element_Type variant record.

Table 5.43 — Index_Code values

Value	Description
DATA_TABLE_COMPONENT	This value specifies that a <DRM Data Table> instance is able to reference its i^th ordered <DRM Data Table> component, where i is the value of the index being specified.
DATA_TABLE_LIBRARY	This value specifies that a <DRM Data Table> instance is able to reference the i^th <DRM Data Table> instance in its transmittal’s <Data Table Library> instance, where i is the value of the index being specified.
IMAGE_MAPPING_FUNCTION	This value specifies that a cell in a <DRM Data Table> instance is able to reference the i^th ordered <DRM Image Mapping Function> component of the <DRM Data Table> instance.
PROP_TABLE_REF_COMPONENT	This value specifies that a <DRM Data Table> instance is able to reference its i^th ordered <DRM Property Table Reference> component, where i is the value of the index being specified.

Index_Code ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : DATA_TABLE_COMPONENT,
                   2 : DATA_TABLE_LIBRARY,
                   3 : IMAGE_MAPPING_FUNCTION,
                   4 : PROP_TABLE_REF_COMPONENT,
           [5..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.24 Interpolation_Type

Table 5.44 defines the Interpolation_Type data type that specifies the manner in which data table cell values are interpolated to produce a point between grid points.

Table 5.44 — Interpolation_Type values

Value	Description
BICUBIC_SPLINE	Bicubic spline interpolation uses sixteen known data points to estimate the unknown value of c at a given a, b by fitting a bicubic surface to the sixteen closest data points and then evaluating for c. For more information, see [PRENTER].
DIAGONALIZATION	A data point is interpolated by taking the four adjacent data points and dividing them into two triangular facets using a diagonal of the data cell. The diagonal to be used shall be provided as part of the cell data of a <DRM Data Table> instance by specifying a <DRM Table Property Description> instance with a value of EAC_GRID_DIAGONALIZATION. An EEC specifying either the lower-left to upper-right diagonal or the upper-left to lower-right diagonal shall be stored in the cell data where the first point is considered to be the lower-left point, the second point is considered to be the upper-left point, the third point is considered to be the upper-right point, and the fourth point is considered to be the lower-right point.
DISALLOWED	Interpolation is disallowed by the data provider.
KRIGING	Kriging is an interpolation type that predicts unknown values from data observed at known locations. This type uses variograms to express the spatial variation, and it minimizes the error of predicted values that are estimated by spatial distribution of the predicted values. Kriging interpolation estimates the unknown value using a weighted linear combination of the available sample. The weights for the linear combination are calculated by deriving the function of the data variogram and evaluating this function over the set of points in the data. For more information refer to [OLIVER].
LAGRANGIAN	Lagrangian interpolation uses a specified number of existing points to fit a polynomial of degree one less than the number of points. For more information, see [ZWIL].
LINEAR	Interpolation is linear (the most common default).
METADATA_SPECIFIED	The description of the data provider’s preferred interpolation type is specified in the supplemental_information field of the <DRM Identification> object associated with the <DRM Data Table> aggregate.
NEAREST_NEIGHBOUR	Interpolation is by nearest neighbour.
NOT_SUPPLIED	No preferred interpolation type was supplied.
QUADRATIC	Quadratic interpolation uses three known data points to estimate the unknown value of y at a given x by fitting a parabolic arc (quadratic equation) to the three data points and then evaluating for y.

Interpolation_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : BICUBIC_SPLINE,
                   2 : DIAGONALIZATION,
                   3 : DISALLOWED,
                   4 : KRIGING,
                   5 : LAGRANGIAN,
                   6 : LINEAR,
                   7 : METADATA_SPECIFIED,
                   8 : NEAREST_NEIGHBOR,
                   9 : NOT_SUPPLIED,
                  10 : QUADRATIC,
          [11..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.25 Interval_Value_Type

Table 5.45 defines the Interval_Value_Type data type that specifies the base data type for an EDCS interval.

Table 5.45 — Interval_Value_Type values

Value	Description
COUNT	The interval is a range over EDCS count values.
INTEGER	The interval is a range over EDCS integer values.
REAL	The interval is a range over EDCS floating point values.

Interval_Value_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : COUNT,
                   2 : INTEGER,
                   3 : REAL,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.26 LOD_Data_Type

Table 5.46 — LOD_Data_Type values

Value	Description
DISTANCE	Each level represents environmental data as viewed from a different distance.
INDEX	Each level represents environmental data selected by an index.
MAP_SCALE	Each level represents environmental data for presentation at a different map scale.
SPATIAL_RESOLUTION	Each level represents environmental data that is specified for a specific spatial resolution.
VOLUME	Each level represents environmental data that occupies a different volume.

LOD_Data_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : DISTANCE,
                   2 : INDEX,
                   3 : MAP_SCALE,
                   4 : SPATIAL_RESOLUTION,
                   5 : VOLUME,
           [6..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.27 Media_Format

Table 5.47 defines the Media_Format data type that specifies the format of media files used by <DRM Browse Media>.

Information about each media format is in C.2 Media_Format references. Support of all media types is optional. However, if a media type is supported by an implementation, that support shall conform to the specifications referenced in C.2 Media_Format references.

Table 5.47 — Media_Format values

Value	Description
AVI	Audio Video Interleave
BIIF	Binary Information Interchange Format
BMP	Bitmap Graphics
CGM	Computer Graphics Metafile
EMF	Windows Enhanced Metafile
GIF	Graphic Interchange Format
HTML	Hyper Text Markup Language
JPEG	Joint Photographic Experts Group
JPEG2000	JPEG 2000
NITFS	National Imagery Transmission Format Standard
PICT	Picture - Macintosh graphics file
PNG	Portable Network Graphics
QT	QuickTime
RGB	Red Green Blue
RIFF	Resource Interchange File Format
SVG	Scalable Vector Graphics
TIFF	Tagged Image File Format
VRML	Virtual Reality Modeling Language
WMF	Windows Metafile
X3D	X3D XML encoding
X3DV	X3D Classic VRML encoding
XBM	X BitMap format

Media_Format ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : AVI,
                   2 : BIIF,
                   3 : BMP,
                   4 : CGM,
                   5 : EMF,
                   6 : GIF,
                   7 : HTML,
                   8 : JPEG,
                   9 : JPEG2000,
                  10 : NITFS,
                  11 : PICT,
                  12 : PNG,
                  13 : QT,
                  14 : RGB,
                  15 : RIFF,
                  16 : SVG,
                  17 : TIFF,
                  18 : VRML,
                  19 : WMF,
                  20 : X3D,
                  21 : X3DV,
                  22 : XBM,
          [23..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.28 Ordering_Reason

Table 5.48 — Ordering_Reason values

Value	Description
NONE	No reason for the ordering is specified.
FIXED_LISTED	A fixed rendering order is used, typically for non-depth-buffered or hybrid image generators.
LAYERED_FASTEST_RENDERING	A layered scheme optimized for fastest rendering is used in which the first component is always the base of the layer and the other components are decal layers.
LAYERED_HIGH_QUALITY_RENDERING	A layered scheme optimized for high-quality rendering is used in which the first component is always the base of the layer and the other components are decal layers.
SHARED_ATTRIBUTE	The components are layered by some shared attributes.
VIEWER_RANGE	The layers are ordered according to range to the viewer.

Ordering_Reason ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : NONE,
                   2 : FIXED_LISTED,
                   3 : LAYERED_FASTEST_RENDERING,
                   4 : LAYERED_HIGH_QUALITY_RENDERING,
                   5 : SHARED_ATTRIBUTE,
                   6 : VIEWER_RANGE,
           [7..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.29 Pixel_Fill_Method

Table 5.49 defines the Pixel_Fill_Method data type that is used in <DRM Rending Properties> instances to specify the colour blending method.

Value	Description
CONSTANT	All pixels of the geometry representation are of the specified colour.
BLEND	The pixels of the geometry representation have a colour that is linearly interpolated from the various <DRM Vertex> instances of the representation.

Pixel_Fill_Method ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : CONSTANT,
                   2 : BLEND,
         [3..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.30 Predefined_Function

Table 5.50 defines the Predefined_Function data type that specifies the various predefined functions that an implementation shall support.

In the description for this data type, the letter A indicates the first argument and is the first ordered component of the given <DRM Predefined Function> instance, the letter B indicates the second argument and is the second ordered component of the given <DRM Predefined Function> instance, continuing on as necessary for the number of arguments needed.

Value	Description
ADD	Definition: A + B
DIVIDE	Definition: A / B
MODULO	Definition: A modulo B
MULTIPLY	Definition: A × B
SUBTRACT	Definition: A - B
COSINE	Definition: cosine(A)
SINE	Definition: sine(A)
TANGENT	Definition: tangent(A)
ARCCOSINE	Definition: arccosine(A)
ARCSINE	Definition: arcsine(A)
ARCTANGENT	Definition: arctangent(A)
ARCTANGENT2	Definition: arctangent2(A,B) where A and B are the numerator and denominator of A/B respectively
HYPOTENUSE	Definition: hypotenuse(A, B)
ABSOLUTE	Definition: \|A\| : absolute value of A
EXPONENT	Definition: e^A
LN	Definition: ln(A) : natural logarithm of A
LOG	Definition: log_B A : logarithm base B of A
POWER	Definition: A^B : A raised to the B^th power
SQRT	Definition: sqrt(A) : square root of A
MAXIMUM	Definition: if (A > B) return A else return B
MINIMUM	Definition: if (A < B) return A else return B
NOT	Definition: Not (the logical operator) Return Type: Boolean This unary logical operator treats an operand with a value of zero (0) as FALSE, while an operand with a non-zero value is treated as TRUE.
AND	Definition: A AND B (the logical operator) Return Type: Boolean This binary logical operator treats its first ordered argument (A) as left of the operator, while the second (B) is right. An operand with a value of zero (0) is treated as FALSE, while an operand with a non-zero value is treated as TRUE.
EQUAL	Definition: A = B (the relation) Return Type: Boolean
GREATER_THAN	Definition: A > B (the relation) Return Type: Boolean
GREATER_THAN_OR_EQUAL	Definition: A ≥ B (the relation) Return Type: Boolean
LESS_THAN	Definition: A < B (the relation) Return Type: Boolean
LESS_THAN_OR_EQUAL	Definition: A ≤ B (the relation) Return Type: Boolean
NOT_EQUAL	Definition: A ≠ B (the relation) Return Type: Boolean
OR	Definition: A OR B (the logical operator) Return Type: Boolean This binary logical operator treats its first ordered argument (A) as left of the operator, while the second (B) is right. An operand with a value of zero (0) is treated as FALSE, while an operand with a non-zero value is treated as TRUE.
EXCLUSIVE_OR	Definition: A XOR B (the Exclusive Or logical operator) This binary logical operator treats its first ordered argument (A) as left of the operator, while the second (B) is right. An operand with a value of zero (0) is treated as FALSE, while an operand with a non-zero value is treated as TRUE.
IF	Definition: if A return B; else return C This function accepts exactly three arguments: A, B, and C.
PI	Definition: The mathematical constant PI (π).
SIMULATION_TIME	Definition: Returns time, in floating point seconds, since simulation start.
SIMULATION_UTIME	Definition: Returns time, in unsigned microseconds, since simulation start. The value is allowed to overflow and roll back to zero.
REFERENCE_SURFACE_ELEVATION	Definition: Returns the elevation value derived from the required <DRM Reference Surface> instance of the transmittal at the location specified by the arguments. Arguments are interpreted as coordinate values within the SRF of the currently scoped instance of <DRM Environment Root>. Argument order shall match the coordinate order determined by the currently scoped SRF. For this function to be valid, at least one <DRM Reference Surface> instance shall be specified within the scope of its <DRM Environment Root> instance.
CYCLE_TIME	Definition: Returns a cycling time value in seconds of the kind specified by the arguments. These arguments are: A - a trigger boolean to start the cycle(s); B - cycle length in seconds; C - a function that returns time in seconds (e.g., GMT); D - number of cycles to execute before stopping; E - cycle time at which to start; F - cycle time at which to end; and G - Boolean specifying whether the cycle runs one way (e.g., start > end, start > end) or whether it reverses at the end (e.g., start > end > start).
TABLE_VALUE	Definition: This value allows a <DRM Data Table> instance to drive a <DRM Control Link> instance. This function contains a <DRM Property Table Reference> instance as an argument that references the <DRM Data Table> instance (usually, this will be a <DRM Property Table> instance). The values are stored in cells with a <DRM Property> instance that is specified by the EAC of the type appropriate for the target <DRM Control Link> instance that is to be driven. This <DRM Predefined Function> instance is contained by the target <DRM Control Link> instance, and thereby returns the value referenced from the <DRM Property Table> instance as the value that drives the target <DRM Control Link>. instance. The <DRM Property Table Reference> instance can itself be controlled using a <DRM Property Table Reference Control Link> instance, allowing different values to be referenced from the <DRM Property Table> instance.

Predefined_Function ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ADD,
                   2 : DIVIDE,
                   3 : MODULO,
                   4 : MULTIPLY,
                   5 : SUBTRACT,
                   6 : COSINE,
                   7 : SINE,
                   8 : TANGENT,
                   9 : ARCCOSINE,
                  10 : ARCSINE,
                  11 : ARCTANGENT,
                  12 : ARCTANGENT2,
                  13 : HYPOTENUSE,
                  14 : ABSOLUTE,
                  15 : EXPONENT,
                  16 : LN,
                  17 : LOG,
                  18 : POWER,
                  19 : SQRT,
                  20 : MAXIMUM,
                  21 : MINIMUM,
                  22 : NOT,
                  23 : AND,
                  24 : EQUAL,
                  25 : GREATER_THAN,
                  26 : GREATER_THAN_OR_EQUAL,
                  27 : LESS_THAN,
                  28 : LESS_THAN_OR_EQUAL,
                  29 : NOT_EQUAL,
                  30 : OR,
                  31 : EXCLUSIVE_OR,
                  32 : IF,
                  33 : PI,
                  34 : SIMULATION_TIME,
                  35 : SIMULATION_UTIME,
                  36 : REFERENCE_SURFACE_ELEVATION,
                  37 : CYCLE_TIME,
                  38 : TABLE_VALUE,
          [39..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.31 Property_Code_Type

Table 5.51 defines the Property_Code_Type data type that specifies the type of property code being specified in an instance of Property_Code.

Value	Description
ATTRIBUTE	The property is an EAC.
VARIABLE	The property is a variable.

Property_Code_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ATTRIBUTE,
                   2 : VARIABLE,
         [3..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.32 Reference_Vector_Type

Table 5.52 defines the Reference_Vector_Type data type that specifies the type of vector being referenced.

Table 5.52 — Reference_Vector_Type values

Value	Description
CAMERA_FORWARD_AXIS	The given <DRM Reference Vector> instance is used to specify the forward axis of a <DRM Camera Point> instance.
CAMERA_UP_AXIS	The given <DRM Reference Vector> instance is used to specify the up axis of a <DRM Camera Point> instance
EMISSIVITY_AZIMUTH	An azimuth for emissivity cases. If the <DRM Reference Vector> has a <DRM Property Value> component specifying an electromagnetic band, this azimuth applies only to the specified EM band. If such a <DRM Property Value> component is not present, this azimuth applies to all emissivity cases.
EMISSIVITY_NORMAL	A normal for emissivity cases. If the <DRM Reference Vector> has a <DRM Property Value> component specifying an electromagnetic band, this normal applies only to the specified EM band. If such a <DRM Property Value> component is not present, this normal applies to all emissivity cases.
FACE_NORMAL	The given <DRM Reference Vector> instance V specifies a vector for a face F, where F corresponds to an aggregate of V and V corresponds to the normal of F at the point specified by V’s <DRM Location> component.
LIGHT_DIRECTION	The given <DRM Reference Vector> instance V specifies, for an aggregate <DRM Lobe Data> instance of V, the following: In the case where the <DRM Lobe Data> instance is part of a <DRM Spot Light> instance, V specifies the direction of the light emitted by the <DRM Spot Light> instance. In the case where the <DRM Lobe Data> instance is part of a <DRM Directional Light Behaviour> instance, V specifies the direction of the light apparently emitted by the DRM object derived from <DRM Geometry Representation> to which the <DRM Directional Light Behaviour> instance applies.
LSR_TRANSFORMATION_AXIS	The given <DRM Reference Vector> instance V specifies a vector for a <DRM LSR Transformation Step> instance L, where L corresponds to an aggregate of V such that the transformation step specified by L is performed in the direction specified by V.
MAJOR_AXIS	This value specifies the major axis of a <DRM Ellipse> instance, or the major axis of the elliptical cross-section of a <DRM Cylindrical Volume Extent> instance.
MINOR_AXIS	This value specifies the minor axis of a <DRM Ellipse> instance, or the minor axis of the elliptical cross-section of a <DRM Cylindrical Volume Extent> instance.
MOVEMENT_DIRECTION	The given <DRM Reference Vector> instance V specifies, for a given moving object or phenomenon, the direction of motion.
PARALLELEPIPED_EDGE_DIRECTION	The given <DRM Reference Vector> instance V specifies, for an aggregate <DRM Parallelepiped Volume Extent> instance, the orientation of one of the 3 edges that define the parallelepiped volume.
REFLECTIVITY_AZIMUTH	An azimuth for reflectivity/transmissivity cases. If the <DRM Reference Vector> instance has a <DRM Property Value> component specifying an electromagnetic band, this azimuth applies only to the specified EM band. If such a <DRM Property Value> component is not present, this azimuth applies to all reflectivity and transmissivity cases.
REFLECTIVITY_EMISSIVITY_AZIMUTH	Azimuth for all reflectivity and/or emissivity cases.
REFLECTIVITY_EMISSIVITY_NORMAL	A normal for reflectivity and emissivity cases. If the <DRM Reference Vector> instance has a <DRM Property Value> component specifying an electromagnetic band, this normal applies only to the specified EM band. If such a <DRM Property Value> component is not present, this normal applies to all reflectivity and emissivity cases.
REFLECTIVITY_NORMAL	A normal for reflectivity/transmissivity cases. If the <DRM Reference Vector> instance has a <DRM Property Value> component specifying an electromagnetic band, this normal applies only to the specified EM band. If such a <DRM Property Value> component is not present, this normal applies to all reflectivity and emissivity cases.
RENDERING_NORMAL	The given <DRM Reference Vector> instance V specifies a vector for a face F, where F corresponds to an aggregate of V, such that for visualization rendering applications, V shall be used in place of the face normal of F at the point specified by V’s <DRM Location> component.
VERTICAL_AXIS	The given <DRM Reference Vector> instance V specifies, for an aggregate <DRM Lobe Data> instance of V, the axis from which the horizontal_width and vertical_width of the lobe are measured. The selector name VERTICAL_AXIS in this context does not imply any constraint on V’s orientation with respect to the axes (if any) of the SRF in which V is specified.

Reference_Vector_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : CAMERA_FORWARD_AXIS,
                   2 : CAMERA_UP_AXIS,
                   3 : EMISSIVITY_AZIMUTH,
                   4 : EMISSIVITY_NORMAL,
                   5 : FACE_NORMAL,
                   6 : LIGHT_DIRECTION,
                   7 : LSR_TRANSFORMATION_AXIS,
                   8 : MAJOR_AXIS,
                   9 : MINOR_AXIS,
                  10 : MOVEMENT_DIRECTION,
                  11 : PARALLELEPIPED_EDGE_DIRECTION,
                  12 : REFLECTIVITY_AZIMUTH,
                  13 : REFLECTIVITY_EMISSIVITY_AZIMUTH,
                  14 : REFLECTIVITY_EMISSIVITY_NORMAL,
                  15 : REFLECTIVITY_NORMAL,
                  16 : RENDERING_NORMAL,
                  17 : VERTICAL_AXIS,
          [18..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.33 Search_Rule_Type

Table 5.53 defines the Search_Rule_Type data type that specifies a rule for searching.

The rules define different operations that are to be performed to satisfy a search.

Table 5.53 — Search_Rule_Type values

Value	Description
END	This value specifies the end of a list of rules.
AND	This value specifies that the results of the preceding pair of rules will be joined by a logical AND operation.
OR	This value specifies that the results of the preceding pair of rules will be joined by a logical OR operation.
NOT	This value specifies that logical negation will be applied to the result of the preceding rule.
OBJECT_AND	This value specifies that the results of the preceding pair of rules will be joined by a logical AND operation and that both shall be satisfied by the same set of DRM objects.
PREDICATE	DRM objects that satisfy a search rule of this type shall satisfy the specified user-specified function. The signature of the user-specified function shall match that specified by the Predicate function signature (see 5.5.2 Predicate). This value is valid for all types of iterators and uses the following fields: rule_type: set to PREDICATE. user_function: set to the user-specified function that will be used to filter DRM objects based on whether or not the user-specified function returns TRUE or FALSE when passed a DRM object. value: set to some user-specified data that may be NULL.
DRM_CLASS	Objects that satisfy a search rule of this type shall match the specified DRM class. This value is valid for all types of iterators and uses the following Search_Rule fields: rule_type: set to DRM_CLASS. drm_class: the DRM class of the target DRM object. The value NULL is not allowed.
FIELD	Objects that satisfy a search rule of this type shall match the specified DRM class and exactly the specified value for a given field in the fields of the DRM object being tested. For String fields, the string shall have the same length and contain the same contents to satisfy the search rule. In addition, string comparisons are case-sensitive. This value is valid for all types of iterators and uses the following fields: rule_type: set to FIELD. drm_class: set to the DRM class of the target DRM object. The value NULL is not allowed. value: set to a search value (this value will be checked against the value of the specified field in the fields of the DRM object being tested) field_ordinal: set to the ordinal of the chosen field within the fields of the target DRM object.
FIELD_RANGE	Objects that satisfy a search rule of this type shall match both the specified DRM class and the specified range of allowable values for a given field in the fields of the DRM object being tested. This value uses the following fields: rule_type: set to FIELD_RANGE. drm_class: set to the DRM class of the target DRM object. The value NULL is not allowed. value: set to the lower bound of the search values. second_value: set to the upper bound of the search values. field_ordinal: set to the ordinal of the chosen field within the fields of the target DRM object. RESTRICTIONS: A FIELD_RANGE rule shall not be used for a field of type EDCS_Attribute_Code, EDCS_Classification_Code, Boolean, ID, or any enumerated type. For all legal field types, other than the various set types and EDCS_String, both an upper bound and a lower bound value shall be specified. For a field of any of the set data types: The lower bound value is interpreted as a subset, as in “match any field of the same set data type that contains this lower bound set.” The upper bound value is interpreted as a superset, as in “match any field of the same set data type that is contained by this upper bound set.” Either the upper bound or lower bound value may be an empty set but not both. If the lower bound set is empty, only the upper bound test is performed, and vice versa. If both bounds are specified, a DRM object passes this test only if the specified field passes both tests. For a field of type EDCS_String: the lower bound shall be interpreted as a starter string, as in “match any string that starts with this lower bound string”. the upper bound shall be interpreted as a substring, as in “match any string that contains this upper bound string”. For FIELD_RANGE rules, string comparisons are not case sensitive. Either the lower bound or the upper bound may contain a null string (a string where string_length is zero). A NULL string for a lower_bound means that only the upper_bound test is performed and a null string for an upper_bound means that only the lower_bound test is performed. If both bounds are null strings, the rule is invalid. If both an upper_bound and lower_bound are specified in string search (if neither the upper_bound nor the lower_bound is a null string), a string passes if and only if it passes both the upper_bound and the lower_bound tests.
FIELD_ARRAY	Search by a DRM object’s type and by whether the value of a field in the fields of that object matches any element in the search rule’s array. This value is valid for all types of iterators and uses the following fields: rule_type: set to FIELD_ARRAY. drm_class: set to the DRM class of the target DRM object. The value NULL is not allowed. value: set to an array of search values (each value will be checked against the value of the specified field in the fields of the DRM object being tested). field_ordinal: set to the ordinal of the chosen field within the fields of the given DRM object
COMPONENT	Search for DRM objects of a given type that have one or more components of a given type. This value is valid for all types of iterators and uses the following fields: rule_type: set to COMPONENT. drm_class: set to the DRM class of the target DRM object. If NULL is specified, the target DRM object may be of any DRM class. component_drm_class: set to the DRM class of the component that the target DRM object shall have.
COMPONENT_FIELD	DRM objects that satisfy a search rule of this type shall match the specified DRM class and have one or more components of another given DRM class where those components match the specified value for a given field in the fields of the component DRM object being tested. This value is valid for all types of iterators and uses the following fields: rule_type: set to P_COMPONENT_FIELD. drm_class: set to the DRM class of the target DRM object. The value NULL is not allowed. component_object_drm_class: set to the DRM class of a component that the target DRM object shall have. field_ordinal: set to the ordinal of the chosen field within the fields of the given component DRM object. value: the search value (this value will be checked against the value of the specified field in the fields of the component DRM object being tested).
COMPONENT_FIELD_RANGE	DRM objects that satisfy a search rule of this type shall match the specified DRM class and have one or more components of another given DRM class where the specified field in the fields of each of those components contains a value within the specified range of search values. This value is valid for all types of iterators and uses the following fields: rule_type: set to COMPONENT_FIELD_RANGE. drm_class: set to the DRM class of the target DRM object. The value NULL is not allowed. component_object_drm_class: set to the DRM class of a component that the target DRM object shall have. field_ordinal: set to the ordinal of the chosen field within the fields of the given component DRM object. value: the lower bound of the search values. second_value: the upper bound of the search values. RESTRICTIONS: Same as for FIELD_RANGE specified earlier in this table.
COMPONENT_FIELD_ARRAY	DRM objects that satisfy a search rule of this type shall match the specified DRM class and have one or more components of another given DRM class where the specified field in the fields of each of those components contains a value matching one of the specified values in the given array. This value is valid for all types of iterators and uses the following fields: rule_type: set to COMPONENT_FIELD_ARRAY. drm_class: set to the DRM class of the target DRM object. The value NULL is not allowed. component_object_drm_class: set to the DRM class of a component that the DRM object shall have. field_ordinal: the ordinal of the chosen field within the fields of the targeted component DRM object. value: an array of search values (each value will be checked against the value of the specified field in the fields of the DRM object being tested).
ASSOCIATE	DRM objects that satisfy a search rule of this type shall have associations that can be traversed to one or more DRM objects belonging to the specified DRM class. This value is valid for all types of iterators and uses the following fields: rule_type: set to ASSOCIATE. drm_class: set to the DRM class of a DRM object that shall be at the other end of a traversable association from the target DMR object. If NULL is specified, the associate DRM object may be of any DRM class.
MAX_SEARCH_DEPTH	DRM objects that satisfy a search rule of this type shall be within the specified depth (distance) from the start DRM object of the component iterator using this rule. This rule is valid only for the three types of component iterator: component iterator, inherited component iterator, or simple component iterator. This rule type uses the following fields: rule_type: set to MAX_SEARCH_DEPTH. max_depth: set to the maximum allowed distance in links followed from the start_object to any DRM object that is trying to satisfy this rule.

Search_Rule_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : END,
                   2 : AND,
                   3 : OR,
                   4 : NOT,
                   5 : OBJECT_AND,
                   6 : PREDICATE,
                   7 : DRM_CLASS,
                   8 : FIELD,
                   9 : FIELD_RANGE,
                  10 : FIELD_ARRAY,
                  11 : COMPONENT,
                  12 : COMPONENT_FIELD,
                  13 : COMPONENT_FIELD_RANGE,
                  14 : COMPONENT_FIELD_ARRAY,
                  15 : ASSOCIATE,
                  16 : MAX_SEARCH_DEPTH,
          [17..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.34 Search_Type

Table 5.54 defines the Search_Type data type that specifies whether to use a point search, bounding box search, or exact search for a search boundary.

Point search is quickest, but is not guaranteed to be accurate. For a bounding box search, a partial inclusion inclusion_choice value (see 8.3.8 CreateSpatialSearchBoundary) is guaranteed to include all DRM objects that are partly included in the search area; it may include extra DRM objects. A bounding box search with full inclusion will return only fully included DRM objects, but it may miss some DRM objects. An exact bounding box search is guaranteed to be accurate to a small distance.

Table 5.54 — Search_Type values

Value	Description
POINT	A point search algorithm is to be used when searching.
BOUNDING_BOX	A bounding box search algorithm is to be used when searching.
EXACT	An exact search algorithm is to be used when searching.

Search_Quality ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : POINT,
                   2 : BOUNDING_BOX,
                   3 : EXACT,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.35 Search_Value_Type

Table 5.55 defines the Search_Value_Type data type that specifies the type of value to be used during searching. Data types from EDCS or SRM that correspond to the specified search value type are considered to be of the type specified by the Search_Value_Type.

Table 5.55 — Search_Value_Type values

Value	Description
BOOLEAN	The search value is specified as a Boolean.
BYTE	The search value is specified as a byte.
BYTE_POSITIVE	The search value is specified as a positive byte.
BYTE_UNSIGNED	The search value is specified as an unsigned byte.
ENUMERATED	The search value is specified as an enumerant.
FLOAT	The search value is specified as a floating point number.
INTEGER	The search value is specified as an integer.
INTEGER_POSITIVE	The search value is specified as a positive integer.
INTEGER_UNSIGNED	The search value is specified as an unsigned integer.
LONG_FLOAT	The search value is specified as a long floating point number.
SET	The search value is specified as a set data type instance.
SHORT_INTEGER	The search value is specified as a short integer.
SHORT_INTEGER_POSITIVE	The search value is specified as a short positive integer.
SHORT_INTEGER_UNSIGNED	The search value is specified as a short unsigned integer.
STRING	The search value is specified as a string.

Search_Value_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : BOOLEAN,
                   2 : BYTE,
                   3 : BYTE_POSITIVE,
                   4 : BYTE_UNSIGNED,
                   5 : ENUMERATED,
                   6 : FLOAT,
                   7 : INTEGER,
                   8 : INTEGER_POSITIVE,
                   9 : INTEGER_UNSIGNED,
                  10 : LONG_FLOAT,
                  11 : SET,
                  12 : SHORT_INTEGER,
                  13 : SHORT_INTEGER_POSITIVE,
                  14 : SHORT_INTEGER_UNSIGNED,
                  15 : STRING,
          [16..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.36 Season

Table 5.56 — Season values

Value	Description
SPRING	The time period is in Spring.
SUMMER	The time period is in Summer.
AUTUMN	The time period is in Autumn.
WINTER	The time period is in Winter.
DRY	The time period is in the dry season.
WET	The time period is in the wet season.

Season ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : SPRING,
                   2 : SUMMER,
                   3 : AUTUMN,
                   4 : WINTER,
                   5 : DRY,
                   6 : WET,
         [7..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.37 Shading_Method

Table 5.57 defines the Shading_Method data type that specifies the illumination method.

Table 5.57 — Shading_Method values

Value	Description
NONE	Non-illuminated shading. Pixel colour is not affected by either directional or infinite light sources. This is sometimes called fixed shading, since pixel colours are fixed and do not change at render-time.
FLAT	A single colour and a single normal are obtained or computed for a polygon face. The rendered colour for all portions of the face is computed by applying the lighting model calculations based on this single colour, single normal, and all applicable light sources.
INTERPOLATED_COLOUR	Rendered colours are computed at the vertices by applying the lighting model calculations based on each vertex colour, vertex normal, and all lapplicable ight sources. The resulting colours are used to interpolate a colour for portions of the geometry between vertices. This method is termed Gouraud shading.
INTERPOLATED_NORMAL	Vertex colours and vertex normals are interpolated for colours that represent portions of the geometry between vertices. The rendered colours are computed for each portion of the geometry by applying the lighting model calculations based on the interpolated colours, interpolated normals, and all applicable light sources. This method is termed Phong shading.

Shading_Method ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : NONE,
                   2 : FLAT,
                   3 : INTERPOLATED_COLOUR,
                   4 : INTERPOLATED_NORMAL,
           [5..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.38 Single_Value_Type

Table 5.58 defines the Single_Value_Type data type that specifies the EDCS data types used for specifying EA values.

Table 5.58 — Single_Value_Type values

Value	Description
LONG_FLOAT	EDCS Long_Float data type
INTEGER	EDCS Integer data type
COUNT	EDCS Count data type
INDEX	EDCS Count data type used for attributes of type Index
STRING	EDCS String data type
CONSTRAINED_STRING	EDCS String data type used for attributes of type Constrained_String
KEY	EDCS String data type used for attributes of type Key
ENUMERATION	EDCS Enumeration_Code data type
BOOLEAN	EDCS Boolean data type

Single_Value_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : LONG_FLOAT,
                   2 : INTEGER,
                   3 : COUNT,
                   4 : INDEX,
                   5 : STRING,
                   6 : CONSTRAINTED_STRING,
                   7 : KEY,
                   8 : ENUMERATION,
                   9 : BOOLEAN,
          [10..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.39 Sound_Format

Table 5.59 defines the Sound_Format data type that specifies the format of sound files being played using an instance of <DRM Sound>.

Information about each media format is in C.3 Sound_Format references. Support of all media types is optional. However, if a media type is supported by an implementation, that support shall conform to the specifications referenced in C.3 Sound_Format references.

Table 5.59 — Sound_Format values

Value	Description
AIFC	Audio Interchange Format, Compressed sound file
AIFF	Audio Interchange File Format
AVI	Audio Video Interleave
IFF	Interchange File Format
MIDI	Musical Instrument Digital Interface
MP2	MPEG Layer 2 Audio
MP3	MPEG Layer 3 Audio
MPG	Moving Picture Experts Group
QT	QuickTime
RA	Real Audio file
SND	Sound file
VOC	Creative Voice file
WAV	Waveform Audio
WVE	Electronic Art’s file format with .wve extension

Sound_Format ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : AIFC,
                   2 : AIFF,
                   3 : AVI,
                   4 : IFF,
                   5 : MIDI,
                   6 : MP2,
                   7 : MP3,
                   8 : MPG,
                   9 : QT,
                  10 : RA,
                  11 : SND,
                  12 : VOC,
                  13 : WAV,
                  14 : WVE,
        [15..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.40 Spacing_Type

Table 5.60 defines the Spacing_Type data type that specifies, for a given <DRM Regular Axis> instance, how the spacing value is used to compute tick marks.

Table 5.60 — Spacing_Type values

Value

Description

ARITHMETIC

Tick marks form an arithmetic progression.

To compute the i^th tick value, the following formula applies:

Tick(i) = first_value + (i × spacing)

GEOMETRIC

Tick marks form a geometric progression.

To compute the i^th tick value, the following formula applies:

Tick(i) = first_value × (spacingⁱ)

The value of first_value shall be non-zero.

Spacing_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ARITHMETIC,
                   2 : GEOMETRIC,
           [3..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.41 Spatial_Association_Meaning_Type

Table 5.61 defines the Spatial_Association_Meaning_Type data type that specifies the meaning of spatial association data. The DRM objects cited below correspond to the environmental objects that have the spatial association.

Table 5.61 — Spatial_Association_Meaning_Type values

Value	Description
ALTERNATE_REPRESENTATION	The association indicates that the associated object represents an alternate representation of the associating object.
CONTAINS	The association indicates that the associating object contains the associated object.
CONTAINED_BY	The association indicates that the associating object is contained by the associated object.
CROSS	The association indicates that: the interiors of the associating object and the associated object intersect, the intersection has a dimensionality less that the dimensionality of the higher dimensionality of the two objects, and neither object CONTAINS the other.
DISJOINT	The association indicates that none of the points in the associating object are also in the associated object.
INTERSECTS	The association indicates that the associating object and the associated object have at least one interior or boundary point in common.
OVERLAP	The association indicates that the interiors of the associating and associated objects overlap and this intersection has a dimensionality that is the same as the associating and associated objects.
TOUCH	The association indicates that the associating object and the associated objects intersect at their boundaries but not anywhere in their interiors.
IN_PROXIMTY_OF	The association indicates that the associated object is in the proximity of the associating object.
COMPLETELY_ABOVE	The association indicates that: the associating object and the associated object are specified in the same three-dimensional SRF; every point in the associated object is greater than or equal to in elevation every point in the associating object; and every point in the associated object is above a corresponding point in the associating object.
PARTIALLY_ABOVE	The association indicates that: the associating object and the associated object are specified in the same three-dimensional SRF; every point in the associated object is greater than or equal to in elevation every point in the associating object; and there is at least one point in the associated object that is above a corresponding point in the associating object.
COMPLETELY_BELOW	The association indicates that: the associating object and the associated object are specified in the same three-dimensional SRF; every point in the associated object is less than or equal to in elevation every point in the associating object; and every point in the associated object is below a corresponding point in the associating object.
PARTIALLY_BELOW	The association indicates that: the associating object and the associated object are specified in the same three-dimensional SRF; every point in the associated object is less than or equal to in elevation every point in the associating object; and there is at least one point in the associated object that is below a corresponding point in the associating object.

Spatial_Association_Meaning_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ALTERNATE_REPRESENTATION,
                   2 : CONTAINS,
                   3 : CONTAINED_BY,
                   4 : CROSS,
                   5 : DISJOINT,
                   6 : INTERSECTS,
                   7 : OVERLAP,
                   8 : TOUCH,
                   9 : IN_PROXIMITY_OF,
                  10 : COMPLETELY_ABOVE,
                  11 : PARTIALLY_ABOVE,
                  12 : COMPLETELY_BELOW,
                  13 : PARTIALLY_BELOW,
          [14..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.42 Spatial_Index_Spacing_Unit

Table 5.62 defines the Spatial_Index_Spacing_Unit data type that specifies the unit of distance measurement used for spatial index spacing.

Table 5.62 — Spatial_Index_Spacing_Unit values

Value	Description
METRE	Spatial index spacing is measured in metres.
ARC_SECOND	Spatial index spacing is measured in arc seconds.

Spatial_Index_Spacing_Unit ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : METRE,
                   2 : ARC_SECOND,
           [3..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.43 Status_Code

Additional information relating specific status codes with the functions that generate them may be found in 8.3 API functions.

If a function should fail due to multiple reasons, INACTIONABLE_FAILURE shall be returned.

Table 5.63 — Status_Code values

Value	Description
SUCCESS	This status code is returned when the function succeeded and no further information is provided. Other status codes do not necessarily indicate that the function failed. See particular functions for more information.
DELETED_OBJECT	This status code is returned when an object handle to an object that has been removed from a transmittal is passed in to an API function.
DIFFERENT_TRANSMITTAL	This status code is returned when valid parameters were provided but one or more objects were encountered that are in a different transmittal than the start object. This status is not an error condition when extracting objects, but is an error condition when attempting to remove objects from a transmittal.
INACTIONABLE_FAILURE	This status code is returned to indicate a general, unknown, or other error for which there is no meaningful branch that the application code could make. This status code is returned when any invalid parameters are passed in to API functions.
INVALID_ACCESS_MODE	This status code is returned if the resolved file location of a transmittal was found, but the security permissions of the underlying operating system and/or file system prohibited access to the file in the mode specified. This can occur under any of the following conditions: the access mode specified was create or update and the file was marked read-only; no access was permitted for the account running the application; create or update mode was requested but the API implementation did not support write capability; a function requiring create or update mode was invoked for an object in a transmittal that was opened in read-only mode.
INVALID_OBJECT_LABEL	This status code is returned when the function received as an argument a label that was not valid in accordance with label syntax rules, or when an attempt has been made to publish a DRM object with a label that is already in use.
INVALID_TRANSMITTAL_NAME	This status code is returned when a parameter representing a transmittal name did not specify a name that was valid according to the formal SEDRIS namespace as specified by the ResolveTransmittalName function.
NO_OBJECT	This status code is returned by GetAggregate, GetAssociate, GetComponent, and GetNextObject when there are no further objects to return that meet the specified criteria.
OUT_OF_MEMORY	This status code is returned when the implementation is unable to allocate sufficient memory to satisfy the requirements of the function.
SRF_OPERATION_UNSUPPORTED	This status code is returned when an attempt is made to convert a <DRM Location> instance specified in one SRF to another that is not supported by the implementation.
TRANSMITTAL_INACCESSIBLE	This status code is returned by the open-transmittal functions if the resolved file location was not accessible by the API. This can occur if the file was opened for READ_ONLY or UPDATE access and the file does not exist. It can also occur if the file location specified a non-local file and the API had no transport mechanism available capable of accessing the remote file.
UNPUBLISHED_OBJECT	This status code is returned when an object is encountered (while attempting to process an inter-transmittal reference) that is not published by its transmittal.
UNRESOLVED_INPUT_OBJECT	This status code is returned when an argument has been provided to an unresolved object. EXAMPLE A start object for an iterator. This status is an error condition, returned when the API requires access to the content of the unresolved object in order to perform the requested operation.
UNRESOLVED_OUTPUT_OBJECT	This status code is returned when a provided DRM object handle is encountered that references a DRM object that is not available to the API; i.e., the DRM object is contained within a transmittal whose content cannot be accessed. NOTE This status is not necessarily an error condition.
UNRESOLVED_TRANSMITTAL	This status code is returned when a reference to a transmittal is encountered that cannot be resolved.
UNSUPPORTED_ENCODING	This status code is returned when a transmittal was requested in an encoding that is not supported by the implementation(s) of the SEDRIS API linked to the application.

Status_Code ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : SUCCESS,
                   2 : DELETED_OBJECT,
                   3 : DIFFERENT_TRANSMITTAL,
                   4 : INVALID_ACCESS_MODE,
                   5 : INVALID_OBJECT_LABEL,
                   6 : INVALID_TRANSMITTAL_NAME,
                   7 : NO_OBJECT,
                   8 : SRF_OPERATION_UNSUPPORTED,
                   9 : TRANSMITTAL_INACCESSIBLE,
                  10 : UNPUBLISHED_OBJECT,
                  11 : UNRESOLVED_INPUT_OBJECT,
                  12 : UNRESOLVED_OUTPUT_OBJECT,
                  13 : UNRESOLVED_TRANSMITTAL,
                  14 : UNSUPPORTED_ENCODING,
           [15, 999] : // reserved for future standardization,
                1000 : INACTIONABLE_FAILURE,
                1001 : OUT_OF_MEMORY,
        [1002, 1999] : // reserved for other operating system errors,
        [2000, 3999] : // reserved for language binding dependent errors,
              > 4000 : // reserved for registration )

5.2.7.44 Symbol_Format

Table 5.64 defines the Symbol_Format data type that specifies the format of a file defining symbols used by the <DRM Symbol> DRM class.

Information about each media format is in C.4 Symbol_Format references. Support of all media types is optional. However, if a media type is supported by an implementation, that support shall conform to the specifications referenced in C.4 Symbol_Format references.

Table 5.64 — Symbol_Format values

Value	Description
CGM	Computer Graphics Metafile
SVG	Scalable Vector Graphics

Symbol_Format ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : CGM,
                   2 : SVG,
           [3..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.45 Time_Configuration

Table 5.65 defines the Time_Configuration data type that specifies a value to select among the variants of Time_Value.

Table 5.65— Time_Configuration values

Value	Description
DATE_YMD_AND_TIME_HMS	The time specifies the year, month, and the day of the month as well as the hour, the minute, and the second.
DATE_YMD_AND_TIME_HM	The time specifies the year, month, and the day of the month as well as the hour and minute.
DATE_YMD_AND_TIME_H	The time specifies the year, month, and the day of the month as well as the hour.
DATE_YMD	The time specifies the year, month, and the day of the month.
DATE_YD_AND_TIME_HMS	The time specifies the year and the day of the year as well as the hour, the minute, and the second.
DATE_YD_AND_TIME_HM	The time specifies the year and the day of the year as well as the hour and minute.
DATE_YD_AND_TIME_H	The time specifies the year and the day of the year as well as the hour.
DATE_YD	The time specifies the year and the day of the year.
DATE_MD_AND_TIME_HMS	The time specifies the month and the day of the month as well as the hour, the minute, and the second and applies to any year.
DATE_MD_AND_TIME_HM	The time specifies the month and the day of the month as well as the hour and minute and applies to any year.
DATE_MD_AND_TIME_H	The time specifies the year and the day of the year as well as the hour and applies to any year.
DATE_Y	The time specifies only the year.
DATE_M	The time specifies the month that applies to any year.
DAY_OF_YEAR	The time specifies a specific day within a calendar year without specifying a specific year, and shall be between 0 and 365 inclusive.

Time_Configuration ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : DATE_YMD_AND_TIME_HMS,
                   2 : DATE_YMD_AND_TIME_HM,
                   3 : DATE_YMD_AND_TIME_H,
                   4 : DATE_YMD,
                   5 : DATE_YD_AND_TIME_HMS,
                   6 : DATE_YD_AND_TIME_HM,
                   7 : DATE_YD_AND_TIME_H,
                   8 : DATE_YD,
                   9 : DATE_MD_AND_TIME_HMS,
                  10 : DATE_MD_AND_TIME_HM,
                  11 : DATE_MD_AND_TIME_H,
                  12 : DATE_Y,
                  13 : DATE_M,
                  14 : DAY_OF_YEAR,
          [15..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.46 Time_Data_Type

Table 5.66 — Time_Data_Type values

Value	Description
SEASON	The time data is organized by season.
TIME_INTERVAL	The time data is organized into time intervals.
TIME_OF_DAY	The time data is organized by time of day.
TIME_POINT	The time data is organized by time points.

Time_Data_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : SEASON,
                   2 : TIME_INTERVAL,
                   3 : TIME_OF_DAY,
                   4 : TIME_POINT,
           [5..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.47 Time_Measurement_Type

Table 5.67 defines the Time_Measurement_Type data type that specifies whether time is being measured in terms of absolute time, relative to the start of the exercise, or relative to some reference time.

Table 5.67 — Time_Measurement_Type values

Value	Description
GMT	Time is specified relative to Greenwich Mean Time.
RELATIVE_TO_EXERCISE_START	Time is specified relative to the start of the exercise.
RELATIVE_TO_REFERENCE_TIME	Time is specified relative to some stated reference time.

Time_Measurement_Type ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : GMT,
                   2 : RELATIVE_TO_EXERCISE_START,
                   3 : RELATIVE_TO_REFERENCE_TIME,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.48 Time_Of_Day

Table 5.68 defines the Time_Of_Day data type that specifies various times of the day.

Table 5.68 — Time_Of_Day values

Value	Description
DAWN	The time period is at dawn.
MORNING	The time period is in the morning.
DAY	The time period is during the day.
AFTERNOON	The time period is in the afternoon.
DUSK	The time period is at dusk.
EVENING	The time period is in the evening.
NIGHT	The time period is at night.

Time_Of_Day ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : DAWN,
                   2 : MORNING,
                   3 : DAY,
                   4 : AFTERNOON,
                   5 : DUSK,
                   6 : EVENING,
                   7 : NIGHT,
           [8..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.49 Time_Significance

Table 5.69 defines the Time_Significance data type that specifies the meaning of the time represented by a <DRM Base Time Data> instance, in relation to the data set represented by the DRM object aggregating that <DRM Base Time Data> instance.

Table 5.69 — Time_Significance values

Value	Description
ANALYSIS	The <DRM Base Time Data> instance represents the time at which the analysis was performed that resulted in the data set.
CERTIFICATION_DATE	The <DRM Base Time Data> instance represents the date that the data set was certified.
CREATION_DATE	The <DRM Base Time Data> instance represents the date that the data set was created.
FORECAST	The <DRM Base Time Data> instance represents the time at which the forecast is valid that corresponds to the data set.
MODIFICATION_DATE	The <DRM Base Time Data> instance represents the date that the data set was last modified.
OBSERVATION	The <DRM Base Time Data> instance represents the time at which an observation was made.
OCCURRENCE	The <DRM Base Time Data> instance represents the time that the event occurred that is represented by the data being described.
PERIOD_OF_CONTENT	The <DRM Base Time Data> instance represents the time period spanned by the data set.
PUBLICATION_DATE	The <DRM Base Time Data> instance represents the date that the data set was published.
REFERENCE	The <DRM Base Time Data> instance represents a base time to which other times are referenced.
REVISION_DATE	The <DRM Base Time Data> instance represents the date that the data set was last revised.

Time_Significance ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ANALYSIS,
                   2 : CERTIFICATION_DATE,
                   3 : CREATION_DATE,
                   4 : FORECAST,
                   5 : MODIFICATION_DATE,
                   6 : OBSERVATION,
                   7 : OCCURRENCE,
                   8 : PERIOD_OF_CONTENT,
                   9 : PUBLICATION_DATE,
                  10 : REFERENCE,
                  11 : REVISION_DATE,
          [12..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.50 Traversal_Order

Table 5.70 defines the Traversal_Order data type that specifies the desired traversal order for a component iterator.

The traversal order of the branches of a <DRM Aggregate Feature> or <DRM Aggregate Geometry> instance is determined either by the DRM or by the hierarchy_order_parameters field of the iterator. However, the general traversal scheme (i.e., the order to search for objects from the <DRM Transmittal Root> instance down to the maximum depth of the search) is specified using this data type.

All component iterators treat the start_object of the iterator as the root of a composition tree. The order of the tree traversal from that root is given by one of the selectors described below:

Table 5.70 — Traversal_Order values

Value	Description
BREADTH_FIRST	The tree is to be traversed breadth first.
DEPTH_FIRST	The tree is to be traversed depth first.
MOST_EFFICIENT	The most efficient traversal order is to be used.

Traversal_Order ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : BREADTH_FIRST,
                   2 : DEPTH_FIRST,
                   3 : MOST_EFFICIENT,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.51 Underline_Style

Table 5.71 defines the Underline_Style data type that specifies the type of underlining to be applied to the associated text.

The weight of an underline is determined by the width of the underline and typically varies according to font size and font style.

Table 5.71 — Underline_Style values

Value	Description
NONE	The text is displayed without underlines.
SINGLE	The text is displayed with a single underline of normal weight.
DOUBLE	The text is displayed with a double underline of normal weight.
BOLD_SINGLE	The text is displayed with a single underline of increased weight.
BOLD_DOUBLE	The text is displayed with a double underline of increased weight.
DASHED	The text is displayed with a single dashed underline of normal weight.
DOTTED	The text is displayed with a single dotted underline of normal weight.

Underline_Style ::= (
               < 1 : // implementation dependent and non-conforming,
                   1 : NONE,
                   2 : SINGLE,
                   3 : DOUBLE,
                   4 : BOLD_SINGLE,
                   5 : BOLD_DOUBLE,
                   6 : DASHED,
                   7 : DOTTED,
           [8..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.52 Union_Reason

Table 5.72 — Union_Reason values

Value	Description
CLASSIFIED_OBJECT	The union instance has a component <DRM Classification Data> instance, and represents a single environmental object.
COLLECTION_OF_CLASSIFIED_OBJECTS	The union instance has a component <DRM Classification Data> instance, and represents a collection of environmental objects corresponding to the branches of the union such that the <DRM Classification Data> instance is inherited by each branch component.
OTHER	The union instance has no component <DRM Classification Data> instance. The reason for creating the union instance is unknown but shall directly represent an environmental object or collection of environmental objects.

Union_Reason ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : CLASSIFIED_OBJECT,
                   2 : COLLECTION_OF_CLASSIFIED_OBJECTS,
                   3 : OTHER,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.53 Unmatched_State_Behaviour

Table 5.73 defines the Unmatched_State_Behaviour data type that specifies what behaviour should occur if the state_value field of a <DRM State Related Geometry> or <DRM State Related Features> instance does not match any of the state tags supplied in the corresponding state_entry_array entry of an instance of the State_Select_Parameters data type.

Table 5.73 — Unmatched_State_Behaviour values

Value	Description
NONE	If no match is found, no action is taken.
DEFAULT	If no match is found, the default action is taken.
ALL	If no match is found, all specified actions are taken.

Unmatched_State_Behaviour ::= (
               < 1 : // implementation dependent and non-conforming,
                   1 : NONE,
                   2 : DEFAULT,
                   3 : ALL,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.54 Variable_Code

Table 5.74 defines the Variable_Code data type that specifies the meaning of some quantity being used to drive one of the controlling <DRM Expression> components of a <DRM Control Link> instance.

Table 5.74 — Variable_Code values

Value	Description
ACTIVE_STATE_VALUE	Specifies, for the aggregating <DRM State Control Link> instance, the active_state_value field of the target <DRM State Related Features> and <DRM State Related Geometry> instances.
COLOUR_COORDINATE_1	Specifies, for the aggregating concrete instance of a <DRM Control Link> subclass, the first colour coordinate of the target <DRM Colour Data> instance(s).
COLOUR_COORDINATE_2	Specifies, for the aggregating concrete instance of a <DRM Control Link> subclass, the second colour coordinate of the target <DRM Colour Data> instance(s).
COLOUR_COORDINATE_3	Specifies, for the aggregating concrete instance of a <DRM Control Link> subclass, the third colour coordinate of the target <DRM Colour Data> instance(s).
COLOUR_INDEX	Specifies, for the aggregating <DRM Colour Index Control Link> instance, the index field of the target <DRM Colour Index> instance(s).
COLOUR_INTENSITY_LEVEL	Specifies, for the aggregating <DRM Colour Index Control Link> instance, the third colour coordinate of the target <DRM Colour Index> instance(s).
GEOMETRY_TEXTURE	Used in specifying the texture of the object described by the <DRM Expression> instance of which the given <DRM Variable> instance is a part.
HEAT_PRODUCTION	Specifies the heat production status of the object described by the <DRM Expression> instance of which the given <DRM Variable> instance is a part.
LIGHT_SOURCE_ACTIVE	Specifies, for the aggregating <DRM Light Source Control Link> instance, the active_light_value field of the target <DRM Light Source> instance(s).
LIGHT_RENDERING_PROPERTIES_ACTIVE	Specifies, for the aggregating <DRM Light Rendering Properties Control Link> instance, the active_light_value field of the target <DRM Light Rendering Properties> instance(s).
LIGHT_RENDERING_PROPERTIES_CANDELA_VALUE	Specifies, for the aggregating <DRM Light Rendering Properties Control Link> instance, the candela_value field of the target <DRM Light Rendering Properties> instance(s).
LSR_LOCATION_3D_U	Specifies, for the aggregating <DRM LSR 3D Location Control Link> instance, the u component of the coordinate field of the target <DRM 3D LSR Location> instance(s).
LSR_LOCATION_3D_V	Specifies, for the aggregating <DRM LSR 3D Location Control Link> instance, the v component of the coordinate field of the target <DRM 3D LSR Location> instance(s).
LSR_LOCATION_3D_W	Specifies, for the aggregating <DRM LSR 3D Location Control Link> instance, the w component of the coordinate field of the target <DRM 3D LSR Location> instance(s).
POLYGON_FLAGS_COLLIDIBLE	Specifies, for the aggregating <DRM Polygon Control Link> instance, the COLLIDIBLE flag of the target <DRM Polygon> instance(s).
POLYGON_FLAGS_HAT_TEST	Specifies, for the aggregating <DRM Polygon Control Link> instance, the HAT_TEST flag of the target <DRM Polygon> instance(s).
POLYGON_FLAGS_INVISIBLE	Specifies, for the aggregating <DRM Polygon Control Link> instance, the INVISIBLE flag of the target <DRM Polygon> instance(s).
POLYGON_FLAGS_LASER_RANGE_FINDING	Specifies, for the aggregating <DRM Polygon Control Link> instance, the LASER_RANGE_FINDING flag of the target <DRM Polygon> instance(s).
PROPERTY_SET_INDEX	Specifies, for the aggregating <DRM Property Set Index Control Link> instance, the index field of the target <DRM Property Set Index> instance(s).
PROPERTY_TABLE_REFERENCE_INDEX_ON_AXIS	Specifies, for the aggregating <DRM Property Table Reference Control Link> instance, the index_on_axis field of the target <DRM Property Table Reference> instance(s).
REFERENCE_VECTOR_V0	Specifies, for the aggregating <DRM Reference Vector Control Link> instance, the first vector component of the unit_vector field of the target <DRM Reference Vector> instance(s).
REFERENCE_VECTOR_V1	Specifies, for the aggregating <DRM Reference Vector Control Link> instance, the second vector component of the unit_vector field of the target <DRM Reference Vector> instance(s).
REFERENCE_VECTOR_V2	Specifies, for the aggregating <DRM Reference Vector Control Link> instance, the third vector component of the unit_vector field of the target <DRM Reference Vector> instance(s).
ROTATION_ANGLE	Specifies, for the aggregating <DRM Rotation Control Link> instance, the angle field of the target <DRM Rotation> instance(s).
SCALE_FACTOR	Specifies, for the aggregating <DRM Scale Control Link> instance, the scale_factor field of the target <DRM Scale> instance(s).
SOUND_INSTANCE_ACTIVE	Specifies, for the aggregating <DRM Sound Instance Control Link> instance, the active_sound_value field of the target <DRM Sound Instance> instance(s).
TEXTURE_COORDINATE_S	Specifies, for the aggregating <DRM Texture Coordinate Control Link> instance, the s field of the target <DRM Texture Coordinate> instance(s).
TEXTURE_COORDINATE_T	Specifies, for the aggregating <DRM Texture Coordinate Control Link> instance, the t field of the target <DRM Texture Coordinate> instance(s).
TRANSLATION_AMOUNT	Specifies, for the aggregating <DRM Translation Control Link> instance, the translation_amount field of the target <DRM Translation> instance(s).
TRANSLUCENCY_VALUE	Specifies, for the aggregating <DRM Translucency Control Link> instance, the translucency_value field of the target <DRM Translucency> instance(s).

Variable_Code ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : ACTIVE_STATE_VALUE,
                   2 : COLOUR_COORDINATE_1,
                   3 : COLOUR_COORDINATE_2,
                   4 : COLOUR_COORDINATE_3,
                   5 : COLOUR_INDEX,
                   6 : COLOUR_INTENSITY_LEVEL,
                   7 : GEOMETRY_TEXTURE,
                   8 : HEAT_PRODUCTION,
                   9 : LIGHT_SOURCE_ACTIVE,
                  10 : LIGHT_RENDERING_PROPERTIES_ACTIVE,
                  11 : LIGHT_RENDERING_PROPERTIES_CANDELA_VALUE,
                  12 : LSR_LOCATION_3D_U,
                  13 : LSR_LOCATION_3D_V,
                  14 : LSR_LOCATION_3D_W,
                  15 : POLYGON_FLAGS_COLLIDIBLE,
                  16 : POLYGON_FLAGS_HAT_TEST,
                  17 : POLYGON_FLAGS_INVISIBLE,
                  18 : POLYGON_FLAGS_LASER_RANGE_FINDING,
                  19 : PROPERTY_SET_INDEX,
                  20 : PROPERTY_TABLE_REFERENCE_INDEX_ON_AXIS,
                  21 : REFERENCE_VECTOR_V0,
                  22 : REFERENCE_VECTOR_V1,
                  23 : REFERENCE_VECTOR_V2,
                  24 : ROTATION_ANGLE,
                  25 : SCALE_FACTOR,
                  26 : SOUND_INSTANCE_ACTIVE,
                  27 : TEXTURE_COORDINATE_S,
                  28 : TEXTURE_COORDINATE_T,
                  29 : TRANSLATION_AMOUNT,
                  30 : TRANSLUCENCY_VALUE,
          [31..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.7.55 Volumetric_Shape

Table 5.75 defines the Volumetric_Shape data type that specifies the shape of volume extents.

Table 5.75 — Volumetric_Shape values

Value	Description
CYLINDER	The volume is in the shape of a cylinder.
PARALLELEPIPED	The volume is in the shape of a parallelepiped.
SPHERE	The volume is in the shape of a sphere.

Volumetric_Shape ::= (
                 < 1 : // implementation dependent and non-conforming,
                   1 : CYLINDER,
                   2 : PARALLELEPIPED,
                   3 : SPHERE,
           [4..1000] : // reserved for future standardization,
              > 1000 : // reserved for registration )

5.2.8 Set data types

5.2.8.1 Description

Set data types are used to indicate membership in a group of properties. Each set data type consists of a listing of the names that are members of the set. An instance of a set data type can consist of any combination of members but each member can only exist once in the set. Additional members to a set data type can be added by registration (see 4.21 Registration).

5.2.8.2 Colour_Mapping

Table 5.76 defines the Colour_Mapping data type that specifies how colour is applied to a DRM object.

Table 5.76 — Colour_Mapping values

Value	Description
FRONT_PRIMARY	The front of the DRM object is coloured with the primary colour, when the DRM object’s appearance is not affected by texture maps or viewing distance (that is, distance from the observer to the environmental object).
FRONT_DISTANCE_BLEND	The front of the DRM object is coloured using a distance blend algorithm as described above.
FRONT_IMAGE_BLEND	The front of the DRM object is coloured using an image blend algorithm as described above.
BACK_PRIMARY	The back of the DRM object is coloured with the primary colour, when the DRM object’s appearance is not affected by texture maps or viewing distance (that is, distance from the observer to the environmental object).
BACK_DISTANCE_BLEND	The back of the DRM object is coloured with a distance blend algorithm as described above.
BACK_IMAGE_BLEND	The back of the DRM object is coloured using an image blend algorithm as described above.
PRIMARY_LIGHT_RENDERING_BEHAVIOUR	The DRM object is coloured using the primary colour of the associated <DRM Light Rendering Behaviour> instance. It cannot be combined with any other colour mapping.
SECONDARY_LIGHT_RENDERING_BEHAVIOUR	The DRM object is coloured using the secondary colour of the associated <DRM Light Rendering Behaviour> instance. It cannot be combined with any other colour mapping.

Colour_Mapping ::= (
   FRONT_PRIMARY,
   FRONT_DISTANCE_BLEND,
   FRONT_IMAGE_BLEND,
   BACK_PRIMARY,
   BACK_DISTANCE_BLEND,
   BACK_IMAGE_BLEND,
   PRIMARY_LIGHT_RENDERING_BEHAVIOUR,
   SECONDARY_LIGHT_RENDERING_BEHAVIOUR )

5.2.8.3 Display_Side

Table 5.77 defines the Display_Side data type that specifies which side or sides of a face should be displayed.

Table 5.77— Display_Side values

Value	Description
FRONT	The front side of a polygon face is displayed.
BACK	The back side of a polygon face is displayed.

5.2.8.4 Display_Style

Table 5.78 defines the Display_Style data type that specifies a style in which to render geometric objects.

Table 5.78 — Display_Style values

Value	Description
SOLID	Only the faces specified by the Display_Side parameter of the <DRM Rendering Properties> instance are displayed.
WIREFRAME	Only the edges of polygons are displayed.

Display_Style ::= (
   SOLID,
   WIREFRAME,
   additional registered set members )

5.2.8.5 General_Hierarchy_Order

The General_Hierarchy_Order data types specifies, at a high level, whether any components of the given <DRM Aggregate Geometry> and <DRM Aggregate Feature> instances should be traversed in an ordered fashion.

If a type of object is not included in the set, the rest of the Hierarchy_Order_Parameter values for that type of object are ignored. Only if a type of object is included in the set are the Hierarchy_Order_Parameters values examined. The components of that object are traversed in the order specified by the Hierarchy_Order_Parameters of that type.

General_Hierarchy_Order ::= (
   ALTERNATE_HIERARCHY,
   CLASSIFICATION_RELATED,
   LOD_RELATED,
   OCTANT_RELATED,
   QUADRANT_RELATED,
   SEPARATING_PLANE,
   SPATIAL_INDEX_RELATED,
   STATE_RELATED,
   TIME_RELATED,
   additional registered set members )

5.2.8.6 Polygon_Flag

Table 5.79 defines the Polygon_Flag data type that specifies flags that are used to indicate the state or use of a polygon.

Table 5.79 — Polygon_Flag values

Flag	Description
BACKDROP_GROUND	This flag specifies that the given <DRM Polygon> instance is the default ground backdrop.
BACKDROP_SKY	This flag specifies that the given <DRM Polygon> instance is the default sky backdrop.
CLUTTER_ENHANCED	This flag specifies that the given <DRM Polygon> instance has algorithmically scattered model instances on it.
COLLIDIBLE	This flag specifies that the given <DRM Polygon> instance is suitable for use for collision detection in a consuming application. If an environmental object collides with the environmental object represented by the given <DRM Polygon> instance, a collision state is to be set in the consuming application.
CONCAVE	This flag specifies that the given <DRM Polygon> instance is concave.
CUT	This flag specifies that the given <DRM Polygon> instance was cut below the terrain surface. Such <DRM Polygon> instances are normally derived from <DRM Linear Feature> instances corresponding to environmental objects such as roads and rivers.
CUT_IMAGERY	This flag specifies that the given <DRM Polygon> instance is to be used to cut geospecific imagery into the cultural features that are present.
DECAL	This flag specifies that the given <DRM Polygon> instance shall always be given rendering priority above any other coplanar <DRM Polygon> instance. When set to TRUE, this flag supercedes the index value in any applicable <DRM Rendering Priority Level> instance.
DO_NOT_DRAPE	For conforming <DRM Polygon> instances (<DRM Polygon> instances with all <DRM LSR 2D Location> instances), a <DRM Polygon> instance usually drapes across the terrain, breaking into multiple polygons if the draped <DRM Polygon> instance crosses terrain facets. If this flag is set, the given <DRM Polygon> instance is not draped and does not break at terrain facets; instead, terrain facets are ignored and the given <DRM Polygon> instance is defined by the locations of its conformed <DRM Vertex> components.
ENABLE_FEATURE_SIZE_BLENDING	This flag specifies that feature-based blending is enabled for the given <DRM Polygon> instance. <DRM Polygon> instances that have this flag set will all blend (geometry and texture) simultaneously based on the size (radius) of the original feature from which the <DRM Polygon> instances were derived.
ENABLE_FRACTAL	This flag exists to allow the face of the given <DRM Polygon> instance to fractalize in real-time, and is provided for use in applications such as representing sea states. This flag indicates that the shape of the given <DRM Polygon> instance may change at run-time. EXAMPLE A <DRM Polygon> instance representing part of the surface of a body of water, such as a sea. In such an example, the colour might also change if different colour textures were being used for the surface. For 3D representations of a sea surface that changes with (for instance) EAC_BEAUFORT_WIND_SCALE, the colour of a <DRM Polygon> instance may tend more towards white as the sea gets rougher.
ENABLE_POLYGON_RANGE_BLENDING	This flag specifies that range ring blending is enabled for the given <DRM Polygon> instance. <DRM Polygon> instances that have this flag set will all blend (geometry and texture) at the same range (distance).
FOOTPRINT	This flag specifies that the given <DRM Polygon> instance is a footprint for other geometry.
HAT_TEST	This flag specifies that the given <DRM Polygon> instance P may be used to measure the vertical height of an environmental object A that is positioned directly above P such that the “height above terrain” (HAT) of A is taken to be its height above P.
INACTIVE	This flag specifies that the given <DRM Polygon> instance is inactive, or not used.
INVISIBLE	This flag specifies that the given <DRM Polygon> instance is invisible, or not seen.
LASER_RANGE_FINDING	This flag specifies that the given <DRM Polygon> instance is used for horizontal tests for computer image generator (CIG) applications. This flag is analogous to HAT_TEST, where LASER_RANGE_FINDING is used for tests in the horizontal direction.
MOON_REFLECTION	This flag specifies that the moon reflection is to be generated upon the given <DRM Polygon> instance.
OPAQUE_TOP	This flag is used with the RAISED flag to specify that the given <DRM Polygon> instance has been raised such that it now forms part of a <DRM Polyhedron> instance, where the top of the polyhedron is opaque.
PROJECTILE_COLLIDIBLE	This flag specifies that the given <DRM Polygon> instance is suitable for use for projectile collision detection in a consuming application. If an environmental object corresponding to a projectile collides with the environmental object represented by the given <DRM Polygon> instance, a projectile collision state is to be set in the consuming application.
RAISED	This flag specifies that the given <DRM Polygon> instance is a filling polygon above the terrain surface. Such <DRM Polygon> instances are normally derived from <DRM Linear Feature> instances corresponding to environmental objects such as roads. This flag also indicates that the given <DRM Polygon> instance is raised above the surrounding terrain surface. Such <DRM Polygon> instances are normally derived from <DRM Areal Feature> instances corresponding to environmental objects such as forest canopies.
REFLECTIVE	This flag specifies that the given <DRM Polygon> instance reflects light that is shown on it.
SHADOW	This flag specifies that the given <DRM Polygon> instance is in a shadow.
SUN_ILLUMINATED	This flag specifies that the given <DRM Polygon> instance is illuminated depending on the position of the sun.
TERRAIN	This flag specifies that the given <DRM Polygon> instance is a terrain polygon.
VISIBLE_FLOOR	This flag is used with the RAISED flag to specify that the given <DRM Polygon> instance has been raised such that it now forms part of a <DRM Polyhedron> instance, where the floor of the polyhedron is visible.
VISIBLE_INTERIOR	This flag is used with the RAISED flag to specify that the given <DRM Polygon> instance has been raised such that it now forms part of a <DRM Polyhedron> instance, where the interior wall of the polyhedron is visible.
VISIBLE_PERIMETER	This flag is used with the RAISED flag to specify that the given <DRM Polygon> instance has been raised such that it now forms part of a polyhedron, where the perimeter wall of the <DRM Polyhedron> instance is visible.
WATERBODY_SURFACE	This flag specifies that the given <DRM Polygon> instance is an environmental object classified as an ECC_WATERBODY_SURFACE. This flag is used only when other <DRM Polygon> instances (e.g., lake bottom) are below it.

Polygon_Flag ::= (
   BACKDROP_GROUND,
   BACKDROP_SKY,
   CLUTTER_ENHANCED,
   COLLIDIBLE,
   CONCAVE,
   CUT,
   CUT_IMAGERY,
   DECAL,
   DO_NOT_DRAPE
   ENABLE_FEATURE_SIZE_BLENDING,
   ENABLE_FRACTAL,
   ENABLE_POLYGON_RANGE_BLENDING,
   FOOTPRINT,
   HAT_TEST,
   INACTIVE,
   INVISIBLE,
   LASER_RANGE_FINDING,
   MOON_REFLECTION,
   OPAQUE_TOP,
   PROJECTILE_COLLIDIBLE,
   RAISED,
   REFLECTIVE,
   SHADOW,
   SUN_ILLUMINATED,
   TERRAIN,
   VISIBLE_FLOOR,
   VISIBLE_INTERIOR,
   VISIBLE_PERIMETER,
   WATERBODY_SURFACE,
   // additional registered set members )

5.2.8.7 Presentation_Domain

Presentation_Domain ::= (
   OTW,
   IR_HI_BAND,
   IR_LOW_BAND,
   NVG,
   DAY_TV_COLOUR,
   DAY_TV_BW,
   RADAR,
   SAR,
   THERMAL,
   LOW_LIGHT_TV,
   // additional registered set members )

5.3 Structured fundamental data types

5.3.1 Description

Data types that are created from the basic fundamental data types are called structured fundamental data types. This mechanism provides support for arrays and lists of data types (both basic and structured) as well as data types that group several other data types into records.

5.3.2 Array data types

5.3.2.1 Notation

Arrays specify an ordered set whose elements may be of any single data type. Arrays in this part of ISO/IEC 18023 are of one or two dimensions. Table 5.80 specifies the notation for arrays of the supported dimensions.

Table 5.80 — Array data type notation

One-dimensional arrays (lists):	Data_Type_Name[l]
Two-dimensional arrays:	Data_Type_Name[l,w]

The numbers l and w represent the size of the corresponding length and width dimension. Each dimension shall be at least one. If the dimension is variable, an asterisk is used.

EXAMPLE 1 A data type for a variable length list of integers would be specified as:

EXAMPLE 2 A 4×4 matrix of single-precision floating point numbers would be specified as:

5.3.2.2 Matrix_3x3

5.3.2.3 Matrix_4x4

5.3.3 Record data types

5.3.3.1 Description

Data types that encompass a variety of information are called record data types. A record data type consists of a sequence of fundamental data types that together form one record of data. Each entry of a record data type can be of any of the fundamental data types including other record data types.

record_data_type_name ::= {
   field1_name   field1_data_type;                     optional comment
   field2_name   field2_data_type;                     optional comment
    • • •
   fieldn_name   fieldn_data_type;                     optional comment
}

Record data types that specify a sized array indicate the size of the array by placing the name of the size parameter within the brackets for the array type as follows:

record_data_type_name ::= {
size_name size_data_type; optional comment
array_name array_data_type[size_name]; optional comment
}

Multiple arrays may be sized using the same size parameter. The maximum allowed size for the array is the maximum that can be specified by the data type of the size parameter. Record data types containing unsized or self-sized data may be specified by using the [*] notation specified in 5.3.2 Array data types.

In some cases, the data types used in the record data type depend on a parameter to the record data type. Such record data types are called variant record data types. The variant parameter (also called the discriminant) shall be a fundamental integer, enumerated, or selection item data type. The variant value fields shall consist of one valid value of the variant data and one entry shall exist for each of the possible values. The set of variant fields is enclosed within leading and trailing square brackets.

record_data_type_name ::= ( variant_name variant_data_type) {
invariant_field1_name invariant_field1_data_type; optional comment
• • •
invariant_fieldi_name invariant_fieldi_data_type; optional comment
[ variant_value1 : field1_name field1_data_type;   optional comment
    variant_value2 : field2_name field2_data_type;   optional comment
    • • •
    variant_valuen : fieldn_name fieldn_data_type; optional comment
]
invariant_fieldp_name invariant_fieldp_data_type; optional comment
• • •
invariant_fieldz_name invariant_fieldz_data_type; optional comment
}

5.3.3.2 Absolute_Time_Fields

The Absolute_Time_Fields data type encapsulates the field elements of the <DRM Absolute Time> class.

5.3.3.3 Absolute_Time_Interval_Entry

The Absolute_Time_Interval data type specifies a time interval based on an absolute time specification.

5.3.3.4 Absolute_Time_Interval_Fields

The Absolute_Time_Interval_Fields data type encapsulates the field elements of the <DRM Absolute Time Interval> class.

The allowable range for hour is 0..23. The allowable range for minutes is 0..59. The normal allowable range for seconds is [0,0..60,0). During the time in which a leap second has been declared or authorized, the allowable range is [0,0..61,0).

Absolute_Time_Interval_Fields ::= {
   time_significance              Time_Significance;
   delta_days                     Integer;
   delta_hours                    Byte_Unsigned;
   delta_minutes                  Byte_Unsigned;
   delta_seconds                  Long_Float;
}

5.3.3.5 Address

The Address data type specifies the elements of address metadata. The country_code is specified as described for the Locale data type.

Address ::= {
   delivery_point_count           Short_Integer_Positive;
   delivery_point                 String[delivery_point_count];
   city                           String;
   administrative_area            String;
   postal_code                    String;
   country                        Character[3];
   email_address_count            Short_Integer_Positive;
   email_address                  String[email_address_count];
}

5.3.3.6 Aggregate_Feature_Fields

The Aggregate_Feature_Fields data type encapsulates the field elements of the <DRM Aggregate Feature> class.

Aggregate_Feature_Fields ::= {
unique_descendants Boolean;
strict_organizing_principle Boolean;
}

5.3.3.7 Aggregate_Geometry_Fields

The Aggregate_Geometry_Fields data type encapsulates the field elements of the <DRM Aggregate Geometry> class.

Aggregate_Geometry_Fields ::= {
unique_descendants Boolean;
strict_organizing_principle Boolean;
}

5.3.3.8 Alternate_Hierarchy_Parameters

The Alternate_Hierarchy_Parameters data type specifies hierarchical search criteria.

When used within a Hierarchy_Select_Parameters record, this data type selects which branches to traverse from a <DRM Alternate Hierarchy Related Features> instance or <DRM Alternate Hierarchy Related Geometry> instance when encountered by a component iterator. All branches that have a link object whose field values match one of the entries contained in this record will be traversed.

When used within a Hierarchy_Order_Parameters record, this data type controls the traversal order of the branches from a <DRM Alternate Hierarchy Related Features> instance or a <DRM Alternate Hierarchy Related Geometry> instance when encountered by a component iterator. For the set of branches that will be traversed, the order of that traversal will be specified by the hierarchy_data_array. Any occurrences of branches that are traversed but are not mentioned in this traversal order array shall be traversed in any order after all of the branches that are mentioned in this array are traversed.

5.3.3.9 Alternate_Hierarchy_Related_Features_Fields

Alternate_Hierarchy_Related_Features_Fields ::= {
unique_descendants Boolean;
strict_organizing_principle Boolean;
}

5.3.3.10 Alternate_Hierarchy_Related_Geometry_Fields

Alternate_Hierarchy_Related_Geometry_Fields ::= {
unique_descendants Boolean;
strict_organizing_principle Boolean;
}

5.3.3.11 Animation_Behaviour_Fields

The Animation_Behaviour_Fields data type encapsulates the field elements of the <DRM Animation Behaviour> class.

5.3.3.12 Animation_Range

The Animation_Range data type specifies a single range of animation frames to be traversed from A <DRM Animation Related Geometry>.

The ending_frame of a range shall be greater than or equal to the beginning_frame of that range.

5.3.3.13 Animation_Related_Geometry_Fields

Animation_Related_Geometry_Fields ::= {
unique_descendants Boolean;
strict_organizing_principle Boolean;
}

5.3.3.14 Animation_Select_Parameters

The Animation_Select_Parameters data type specifies which branches to traverse from a <DRM Animation Related Geometry> instance when encountered by a component iterator.

Each branch of a <DRM Animation Related Geometry> instance is considered to be a frame of the animation. The frames are ordered, and this ordering is used to implicitly number the frames from 1 to n. The animation_ranges_array is an array of beginning_frames and ending_frames. For each range specified, the frames from that range’s beginning_frame to that range’s ending_frame will be traversed.

5.3.3.15 Any_Enumerated_Or_Selection_Value

The Any_Enumerated_Or_Selection_Value variant record data type specifies an arbitrary enumerated or selection value that may be contained in the fields of a DRM class instance.

Any_Enumerated_Value ::= (selected_enumeration Enumerated_Or_Selection_Type) {
[
NULL_TYPE:                 null_type                   Short_Integer_Unsigned;
AXIS_ALIGNMENT:            axis_alignment              Axis_Alignment;
BOOLEAN:                   boolean                     Boolean;
CAMERA_PROJECTION_TYPE:    camera_projection_type      Camera_Projection_Type;
CI_ROLECODE:               ci_rolecode                 CI_RoleCode;
COLOUR_BINDING:            colour_binding              Colour_Binding;
COLOUR_MODEL:              colour_model                Colour_Model;
DRM_CLASS:                 drm_class                   DRM_Class;
EDCS_ATTRIBUTE_CODE:       edcs_attribute_code         EDCS_Attribute_Code;
EDCS_ATTRIBUTE_VALUE_TYPE: edcs_attribute_value_type   EDCS_Attribute_Value_Type;
EDCS_BOOLEAN:              edcs_boolean                EDCS_Boolean;
EDCS_CLASSIFICATION_CODE: edcs_classification_code    EDCS_Classification_Code;
EDCS_ENUMERANT_CODE:       edcs_enumerant_code         EDCS_Integer;
EDCS_NUMERIC_VALUE_TYPE:   edcs_numeric_value_type     EDCS_Numeric_Value_Type;
EDCS_UNIT_CODE:            edcs_unit_code              EDCS_Unit_Code;
EDCS_UNIT_SCALE_CODE:      edcs_unit_scale_code        EDCS_Unit_Scale_Code;
EDCS_VALUE_CHARACTERISTIC_CODE:
                             edcs_value_characteristic_code
                                               EDCS_Value_Characteristic_Code;
ELEMENT_TYPE_CODE:         element_type_code           Element_Type_Code;
FEATURE_TOPOLOGY_LEVEL:    feature_topology_level      Feature_Topology_Level;
FONT_STYLE:                font_style                  Font_Style;
FUNCTIONAL_ASSOCIATION_MEANTING_TYPE:
                             functional_association_meaning_type
                                              Functional_Association_Meaning_Type;
GEOMETRIC_CENTRE_CODE:     geometric_centre_code       Geometric_Centre_Code;
GEOMETRY_TOPOLOGY_LEVEL:   geometry_topology_level     Geometry_Topology_Level;
GRID_OVERLAP_OPERATOR:     grid_overlap_operator       Grid_Overlap_Operator;
HIERARCHY_SUMMARY_MULTIPLICITY_CODE:
                             hierarchy_summary_multiplicity_code
                                              Hierarchy_Summary_Multiplicity_Code;
IMAGE_COMPONENT_TYPE:      image_component_type        Image_Component_Type;
IMAGE_MAPPING_METHOD:      image_mapping_method        Image_Mapping_Method;
IMAGE_PROJECTION_TYPE:     image_projection_type       Image_Projection_Type;
IMAGE_SCAN_DIRECTION:      image_scan_direction        Image_Scan_Direction;
IMAGE_SCAN_DIRECTION_Z:    image_scan_direction_z      Image_Scan_Direction_Z;
IMAGE_SIGNATURE:           image_signature             Image_Signature;
IMAGE_WRAP:                image_wrap                  Image_Wrap;
INDEX_CODE:                index_code                  Index_Code;
INTERPOLATION_TYPE:        interpolation_type          Interpolation_Type;
LOD_DATA_TYPE:             lod_data_type               LOD_Data_Type;
LSR_TRANSFORMATION_AXIS:   lsr_transformation_axis     LSR_Transformation_Axis;
MD_KEYWORDTYPECODE;        md_keywordtypecode          MD_KeywordTypeCode;
MD_RESTRICTION_CODE:       md_restrictioncode          MD_RestrictionCode;
MEDIA_FORMAT:              media_format                Media_Format;
MODEL_REFERENCE_TYPE:      model_reference_type        Model_Reference_Type;
MONTH:                     month                       Month;
OCTANT:                    octant                      Octant;
ORDERING_REASON:           ordering_reason             Ordering_Reason;
PIXEL_FILL_METHOD:         pixel_fill_method           Pixel_Fill_Method;
POINT_LIGHT_DISPLAY_TYPE: point_light_display_type    Point_Light_Display_Type;
PREDEFINED_FUNCTION:       predefined_function         Predefined_Function;
PRESENT_IN:                present_in                  Present_In;
PROPERTY_CODE_TYPE:        property_code_type          Property_Code_Type;
QUADRANT:                  quadrant                    Quadrant;
REFERENCE_SURFACE_ELEVATION_SELECT:
                             reference_surface_elevation_select
                                               Reference_Surface_Elevation_Select;
REFERENCE_SURFACE_LOD_SELECT:
                             reference_surface_lod_select
                                             Reference_Surface_LOD_Select;
  REFERENCE_VECTOR_TYPE:     reference_vector_type       Reference_Vector_Type;
SEASON:                    season                      Season;
SHADING_METHOD:            shading_method              Shading_Method;
SINGLE_VALUE_TYPE:         single_value_type           Single_Value_Type;
SOUND_FORMAT:              sound_format                Sount_Format;
SPACING_TYPE:              spacing_type                Spacing_Type;
SPATIAL_ASSOCIATION_MEANTING_TYPE:
                             spatial_association_meaning_type
                                              Spatial_Association_Meaning_Type;
SPATIAL_INDEX_SPACING_UNIT:
                             spatial_index_spacing_unit Spatial_Index_Spacing_Unit;
SRM_DSS_CODE:              srm_dss_code                SRM_DSS_Code;
STATE_MISMATCH_BEHAVIOUR: state_mismatch_behaviour    State_Mismatch_Behaviour;
SYMBOL_FORMAT:             symbol_format               Symbol_Format;
TIME_CONFIGURATION:        time_configuration          Time_Configuration;
TIME_DATA_TYPE:            time_data_type              Time_Data_Type;
TIME_OF_DAY:               time_of_day                 Time_Of_Day;
TIME_SIGNIFICANCE:         time_significance           Time_Significance;
UNDERLINE_STYLE:           underline_style             Underline_Style;
UNION_REASON:              union_reason                Union_Reason;
VARIABLE_CODE:             variable_code               Variable_Code;
]}

5.3.3.16 Any_Search_Value

The Any_Search_Value variant record data type specifies one of the values of available data types that can be used for search controls.

Any_Search_Value ::= (type_of_value Search_Value_Type) {
[
BOOLEAN:                boolean_value                 Boolean;
BYTE:                   byte_value                    Byte;
SHORT_INTEGER:          short_integer_value           Short_Integer;
INTEGER:                integer_value                 Integer;
BYTE_POSITIVE:          byte_positive_value           Byte_Positive;
SHORT_INTEGER_POSITIVE: short_integer_positive_value Short_Integer_Positive;
INTEGER_POSITIVE:       integer_positive_value        Integer_Positive;
BYTE_UNSIGNED:          byte_unsigned_value           Byte_Unsigned;
SHORT_INTEGER_UNSIGNED: short_integer_unsigned_value Short_Integer_Unsigned;
INTEGER_UNSIGNED:       integer_unsigned_value        Integer_Unsigned;
FLOAT:                  float_value                   Float;
LONG_FLOAT:             long_float_value              Long_Float;
ENUMERATED:             any_enumerated_or_selection_value
                                                Any_Enumerated_Or_Selection_Value;
STRING:                 string_value                  String;
]}

5.3.3.17 Arc_Fields

The Arc_Fields data type encapsulates the field elements of the <DRM Arc> class.

5.3.3.18 Axis_Fields

The Axis_Fields data type encapsulates the field elements of the <DRM Axis> class.

5.3.3.19 Base_Positional_Light_Fields

The Base_Positional_Light_Fields data type encapsulates the field elements of the <DRM Base Positional Light> class.

Base_Positional_Light_Fields ::= {
   apply_to_children              Boolean;
   override_positional_lights     Boolean;
   override_infinite_lights       Boolean;
   active_light_value             Boolean;
   radius                         Float;
   constant_attenuation_factor    Long_Float;
   linear_attenuation_factor      Long_Float;
   quadratic_attenuation_factor   Long_Float;
}

5.3.3.20 Base_Spatial_Association_Data_Fields

5.3.3.21 Base_Summary_Item_Fields

5.3.3.22 Base_Time_Data_Fields

This data type encapsulates the field elements of the <DRM Base Time Data> class.

5.3.3.23 Blend_Directional_Light_Fields

Blend_Directional_Light_Fields ::= {
upper_plane_angular_offset Long_Float;
lower_plane_angular_offset Long_Float;
}

5.3.3.24 Browse_Media_Fields

Browse_Media_Fields ::= {
   name                           String;
   media_format                   Media_Format;
   media_urn                      URN;
   description                    String;
}

5.3.3.25 Camera_Point_Fields

The Camera_Point_Fields data type encapsulates the field elements of the <DRM Camera Point> class.

Camera_Point_Fields ::= {
   projection                     Camera_Projection_Type;
   camera_near                    Long_Float;
   camera_far                     Long_Float;
   use_left_right_bottom_top      Boolean;
   left                           Long_Float;
   bottom                         Long_Float;
   right                          Long_Float;
   top                            Long_Float;
   horizontal_field_of_view       Long_Float;
   aspect_ratio                   Long_Float;
}

5.3.3.26 CC_3D_Location_Fields

The CC_3D_Location_Fields data type encapsulates the field elements of the <DRM CC 3D Location> class.

5.3.3.27 CD_3D_Location_Fields

The CD_3D_Location_Fields data type encapsulates the field elements of the <DRM CD 3D Location> class.

5.3.3.28 CD_Surface_Location_Fields

The CD_Surface_Location_Fields data type encapsulates the field elements of the <DRM CD Surface Location> class.

5.3.3.29 Citation_Fields

The Citation_Fields data type encapsulates the field elements of the <DRM Citation> class.

Citation_Fields ::= {
   title                          String;
   edition                        String;
   series_name                    String;
   issue_identification           String;
   other_citation_details         String;
}

5.3.3.30 Classification_Data_Fields

The Classification_Data_Fields data type encapsulates the field elements of the <DRM Classification Data> class.

5.3.3.31 Classification_Entry

The Classification_Entry data type specifies a single entry in the data provided by the Classification_Parameters data type.

5.3.3.32 Classification_Parameters

When used within a Hierarchy_Select_Parameters record, this data type is used to select which branches to traverse from a <DRM Classification Related Features> or <DRM Classification Related Geometry> instance when encountered by a component iterator. All branches with a link object containing a classification tag listed in the given classification_array will be traversed.

When used within a Hierarchy_Order_Parameters record, this data type controls the traversal order of the branches from a <DRM Classification Related Features> or <DRM Classification Related Geometry> instance when encountered by a component iterator. Any types of branches that are traversed but are not mentioned in this traversal order array will be traversed in any order after all of the branches that are mentioned in this array are traversed.

5.3.3.33 Classification_Related_Features_Fields

Classification_Related_Features_Fields ::= {
unique_descendants Boolean;
strict_organizing_principle Boolean;
}

5.3.3.34 Classification_Related_Geometry_Fields

Classification_Related_Geometry_Fields ::= {
unique_descendants Boolean;
strict_organizing_principle Boolean;
}

5.3.3.35 CM_3D_Location_Fields

The CM_3D_Location_Fields data type encapsulates the field elements of the <DRM CM 3D Location> class.

5.3.3.36 CMY_Colour_Control_Link_Fields

The CMY_Colour_Control_Link_Fields data type encapsulates the field elements of the <DRM CMY Colour Control Link> class.

CMY_Colour_Control_Link_Fields ::= {
   description                    String;
   cyan_expression_index          Integer_Unsigned;
   magenta_expression_index       Integer_Unsigned;
   yellow_expression_index        Integer_Unsigned;
}

5.3.3.37 CMY_Colour_Fields

The CMY_Colour_Fields data type encapsulates the field elements of the <DRM CMY Colour> class.

5.3.3.38 CMY_Data

5.3.3.39 Colour_Fields

The Colour_Fields data type encapsulates the field elements of the <DRM Colour> class.

5.3.3.40 Colour_Index_Control_Link_Fields

Colour_Index_Control_Link_Fields ::= {
   description                    String;
   colour_index                   Integer_Unsigned;
   intensity_level_index          Integer_Unsigned;
}

5.3.3.41 Colour_Index_Fields

The Colour_Index_Fields data type encapsulates the field elements of the <DRM Colour Index> class.

Colour_Index_Fields ::= {
   colour_mapping                 Colour_Mapping;
   index                          Integer_Positive;
   intensity_level                Long_Float;
}

5.3.3.42 Colour_Shininess_Fields

The Colour_Shininess_Fields data type encapsulates the field elements of the <DRM Colour Shininess> class.

5.3.3.43 Colour_Table_Group_Fields

The Colour_Table_Group_Fields data type encapsulates the field elements of the <DRM Colour Table Group> class.

5.3.3.44 Cone_Directional_Light_Fields

The Cone_Directional_Light_Fields data type encapsulates the field elements of the <DRM Cone Directional Light> class.

Cone_Directional_Light_Fields ::= {
   has_plane                      Boolean;
   plane_angular_offset           Long_Float;
   use_full_intensity             Boolean;
   minimum_colour_intensity       Long_Float;
   invisible_behind               Boolean;
}

5.3.3.45 Conformal_Behaviour_Fields

The Conformal_Behaviour_Fields data type encapsulates the field elements of the <DRM Conformal Behaviour> class.

Conformal_Behaviour_Fields ::= {
parallel_gravity Boolean;
offset_distance Float;
}

5.3.3.46 Contact_Information

The Contact_Information data type encapsulates the complete set of contact metadata used by <DRM Responsible Party>.

Contact_Information ::= {
   phone                          Telephone_Information;
   address                        Address;
   online_resource                CI_OnlineResource;
   hours_of_service               String;
   contact_instructions           String;
}

5.3.3.47 Continuous_LOD_Related_Geometry_Fields

Continuous_LOD_Related_Geometry_Fields ::= {
   unique_descendants             Boolean;
   strict_organizing_principle    Boolean;
   terminating_node               Boolean;
}

5.3.3.48 Continuous_LOD_Select_Parameters

The Continuous_LOD_Select_Parameters data type specifies which branches to traverse from a <DRM Continuous LOD Related Geometry> object when encountered by a component iterator as directed by the select_parameters parameter of the InitializeComponentIterator function.

5.3.3.49 Control_Link_Fields

The Control_Link_Fields data type encapsulates the field elements of the <DRM Control Link> class.

5.3.3.50 Count_Interval_Value

The Count_Interval_Value variant record data type specifies a count interval value for the type of interval determined by interval_type.

Count_Interval_Value ::= (interval_type Interval_Type) {
[
   OPEN_INTERVAL:        open_value                EDCS_Count_Interval;
   GE_LT_INTERVAL:       ge_lt_interval_value      EDCS_Count_Interval;
   GT_LE_INTERVAL:       gt_le_interval_value      EDCS_Count_Interval;
   CLOSED_INTERVAL:      closed_interval_value     EDCS_Count_Interval;
   GT_SEMI_INTERVAL:     gt_semi_interval_value    EDCS_Count;
   GE_SEMI_INTERVAL:     ge_semi_interval_value    EDCS_Count;
   LT_SEMI_INTERVAL:     lt_sem_interval_value     EDCS_Count;
   LE_SEMI_INTERVAL:     le_semi_interval_value    EDCS_Count;
]}

5.3.3.51 Cylindrical_Volume_Extent_Entry

The Cylindrical_Volume_Extent_Entry data type specifies a cylindrical <DRM Volume LOD Data>.

5.3.3.52 Cylindrical_Volume_Extent_Fields

Cylindrical_Volume_Extent_Fields ::= {
   major_axis_radius              Long_Float;
   minor_axis_radius              Long_Float;
   cylinder_length                Long_Float;
}

5.3.3.53 Data_Quality_Element

The Data_Quality_Element data type specifies the components of each piece of data quality information.

Data_Quality_Element ::= {
   name_of_measure                 String;
   measure_identification          String;
   measure_description             String;
   evaluation_method_type          String;
   evaluation_method_description   String;
   evaluation_procedure            String;
   data_time                       String;
   result                          String;
}

5.3.3.54 Data_Quality_Fields

The Data_Quality_Fields data type encapsulates the field elements of the <DRM Data Quality> class.

5.3.3.55 Data_Table_Data

Data_Table_Data ::= (value_type Data_Table_Data_Value_Type) {
table_property_description_index   Integer_Positive;
data_count                         Integer_Positive;
[ SINGLE_LONG_FLOAT:
        single_long_float_values     EDCS_Long_Float[data_count];
    LONG_FLOAT:
        long_float_values            EDCS_Long_Float_Value[data_count];
    SINGLE_INTEGER:
        single_integer_values        EDCS_Integer[data_count];
    INTEGER:
        integer_values               EDCS_Integer_Value[data_count];
    SINGLE_COUNT:
        single_count_values          EDCS_Count[data_count];
    COUNT:
     count_values                  EDCS_Count_Value[data_count];
    INDEX:
     index_values                  EDCS_Count[data_count];
    STRING:
        string_values                EDCS_String[data_count];
    CONSTRAINED_STRING:
        constrained_string_values    EDCS_String[data_count];
    KEY:
        key_values                   EDCS_String[data_count];
    ENUMERATION:
        enumeration_values           EDCS_Integer[data_count];
    BOOLEAN:
        boolean_values               EDCS_Boolean[data_count];
    INDEX_CODE:
        index_code_values            Integer_Unsigned[data_count];
]
}

5.3.3.56 Data_Table_Sub_Extent

The Data_Table_Sub_Extent data type specifies the portion of a <DRM Data Table> instance that is to be accessed.

5.3.3.57 Distance_LOD_Data_Fields

The Distance_LOD_Data_Fields data type encapsulates the field elements of the <DRM Distance LOD Data> class.

Distance_LOD_Data_Fields ::= {
   minimum_range                  Long_Float;
   minimum_fade_band              Long_Float;
   maximum_range                  Long_Float;
   maximum_fade_band              Long_Float;
}

5.3.3.58 DRM_Class_Fields

The DRM_Class_Fields variant record data type specifies the field values for the DRM class identified by drm_class.

DRM_Class_Fields ::= (drm_class DRM_Class) {
[
NULL:
DRM_AMBIENT_COLOUR:
DRM_AREAL_FEATURE:
DRM_ATTACHMENT_POINT:
DRM_BASE_ASSOCIATION_DATA:
DRM_BASE_LOD_DATA:
DRM_BOUNDING_VOLUME:
DRM_COLLISION_VOLUME:
DRM_COLOUR_DATA:
DRM_COLOUR_TABLE:
DRM_COLOUR_TABLE_LIBRARY:
DRM_CONTACT_POINT:
DRM_DATA_TABLE:
DRM_DATA_TABLE_LIBRARY:
DRM_DIFFUSE_COLOUR:
DRM_DIRECTIONAL_LIGHT_BEHAVIOUR:
DRM_EMISSIVE_COLOUR:
DRM_ENCLOSING_VOLUME:
DRM_EXPRESSION:
DRM_FEATURE_EDGE:
DRM_FEATURE_FACE_RING:
DRM_FEATURE_HIERARCHY:
DRM_FEATURE_MODEL:
DRM_FEATURE_MODEL_INSTANCE:
DRM_FEATURE_NODE:
DRM_FEATURE_REPRESENTATION:
DRM_FEATURE_TOPOLOGY:
DRM_FEATURE_VOLUME_SHELL:
DRM_FINITE_ELEMENT_MESH:
DRM_GEOMETRY_EDGE:
DRM_GEOMETRY_FACE:
DRM_GEOMETRY_HIERARCHY:
DRM_GEOMETRY_MODEL:
DRM_GEOMETRY_MODEL_INSTANCE:
DRM_GEOMETRY_NODE:
DRM_GEOMETRY_REPRESENTATION:
DRM_GEOMETRY_TOPOLOGY:
DRM_GEOMETRY_VOLUME:
DRM_ICON:
DRM_IMAGE_LIBRARY:
DRM_LABEL:
DRM_LIBRARY:
DRM_LIGHT_RENDERING_BEHAVIOUR:
DRM_LINEAR_FEATURE:
DRM_LOCATION:
DRM_LOCATION_2D:
DRM_LOCATION_3D:
DRM_LOCATION_SURFACE:
DRM_LSR_TRANSFORMATION:
DRM_LSR_TRANSFORMATION_STEP:
DRM_MODEL_LIBRARY:
DRM_PERIMETER_DATA:
DRM_POINT:
DRM_POINT_FEATURE:
DRM_POLYHEDRON:
DRM_PRIMITIVE_COLOUR:
DRM_PRIMITIVE_FEATURE:
DRM_PRIMITIVE_GEOMETRY:
DRM_PROPERTY_GRID_HOOK_POINT:
DRM_PROPERTY_SET:
DRM_PROPERTY_SET_TABLE_LIBRARY:
DRM_PROPERTY_TABLE:
DRM_SEDRIS_ABSTRACT_BASE:
DRM_SEPARATING_PLANE:
DRM_SEPARATING_PLANE_RELATIONS:
DRM_SOUND_LIBRARY:
DRM_SOUND_VOLUME:
DRM_SPATIAL_EXTENT:
DRM_SPECULAR_COLOUR:
DRM_SURFACE_GEOMETRY:
DRM_SYMBOL_LIBRARY:
DRM_TACK_POINT:
DRM_TIME_CONSTRAINTS_DATA:
DRM_TRANSFORMATION:
DRM_TWINKLING_LIGHT_BEHAVIOUR:
DRM_VERTEX:
DRM_VOLUME_EXTENT:
DRM_VOLUME_GEOMETRY:
DRM_VOLUME_OBJECT:
DRM_VOLUMETRIC_FEATURE:
DRM_WORLD_TRANSFORMATION:
unused_fields                         Unused_Fields;
DRM_ABSOLUTE_TIME:
absolute_time_fields                  Absolute_Time_Fields;
DRM_ABSOLUTE_TIME_INTERVAL:
absolute_time_interval_fields         Absolute_Time_Interval_Fields;
DRM_AGGREGATE_FEATURE:
aggregate_feature_fields              Aggregate_Feature_Fields;
DRM_AGGREGATE_GEOMETRY:
aggregate_geometry_fields             Aggregate_Geometry_Fields;
DRM_ALTERNATE_HIERARCHY_RELATED_FEATURES:
alternate_hierarchy_related_feature_fields
                              Alternate_Hierarchy_Related_Features_Fields;
DRM_ALTERNATE_HIERARCHY_RELATED_GEOMETRY:
alternate_hierarchy_related_geometry_fields
                              Alternate_Hierarchy_Related_Geometry_Fields;
DRM_ANIMATION_BEHAVIOUR:
animation_behaviour_fields            Animation_Behaviour_Fields;
DRM_ANIMATION_RELATED_GEOMETRY:
animation_related_geometry_fields     Animation_Related_Geometry_Fields;
DRM_ARC:
arc_fields                            Arc_Fields;
DRM_AXIS:
axis_fields                           Axis_Fields;
DRM_BASE_POSITIONAL_LIGHT:
base_positional_light_fields          Base_Positional_Light_Fields;
DRM_BASE_SPATIAL_ASSOCIATION_DATA:
    base_spatial_association_data         Base_Spatial_Association_Data_Fields;
DRM_BASE_SUMMARY_ITEM:
base_summary_item_fields              Base_Summary_Item_Fields;
DRM_BASE_TIME_DATA:
base_time_data_fields                 Base_Time_Data_Fields;
DRM_BLEND_DIRECTIONAL_LIGHT:
blend_directional_light_fields        Blend_Directional_Light_Fields;
DRM_BROWSE_MEDIA:
browse_media_fields                   Browse_Media_Fields;
DRM_CAMERA_POINT:
camera_point_fields                   Camera_Point_Fields;
DRM_CC_3D_LOCATION:
cc_3D_location_fields                 CC_3D_Location_Fields;
DRM_CD_3D_LOCATION:
cd_3D_location_fields                 CD_3D_Location_Fields;
DRM_CD_SURFACE_LOCATION:
cd_surface_location_fields            CD_Surface_Location_Fields;
DRM_CITATION:
citation_fields                       Citation_Fields;
DRM_CLASSIFICATION_DATA:
classification_data_fields            Classification_Data_Fields;
DRM_CLASSIFICATION_RELATED_FEATURES:
classification_related_features_fields Classification_Related_Features_Fields;
DRM_CLASSIFICATION_RELATED_GEOMETRY:
classification_related_geometry_fields Classification_Related_Geometry_Fields;
DRM_CM_3D_LOCATION:
cm_3D_location_fields                 CM_3D_Location_Fields;
DRM_CMY_COLOUR:
cmy_colour_fields                     CMY_Colour_Fields;
DRM_CMY_COLOUR_CONTROL_LINK:
cmy_colour_control_link_fields        CMY_Colour_Control_Link_Fields;
DRM_COLOUR:
colour_fields                         Colour_Fields;
DRM_COLOUR_INDEX:
colour_index_fields                   Colour_Index_Fields;
DRM_COLOUR_INDEX_CONTROL_LINK:
colour_index_control_link_fields      Colour_Index_Control_Link_Fields;
DRM_COLOUR_SHININESS:
colour_shininess_fields               Colour_Shininess_Fields;
DRM_COLOUR_TABLE_GROUP:
colour_table_group_fields             Colour_Table_Group_Fields;
DRM_CONE_DIRECTIONAL_LIGHT:
cone_directional_light_fields         Cone_Directional_Light_Fields;
DRM_CONFORMAL_BEHAVIOUR:
conformal_behaviour_fields            Conformal_Behaviour_Fields;
DRM_CONTINUOUS_LOD_RELATED_GEOMETRY:
continuous_lod_related_geometry_fields Continuous_LOD_Related_Geometry_Fields;
DRM_CONTROL_LINK:
control_link_fields                   Control_Link_Fields;
DRM_CYLINDRICAL_VOLUME_EXTENT:
cylindrical_volume_extent_fields      Cylindrical_Volume_Extent_Fields;
DRM_DATA_QUALITY:
data_quality_fields                   Data_Quality_Fields;
DRM_DISTANCE_LOD_DATA:
distance_lod_data_fields              Distance_LOD_Data_Fields;
DRM_DRM_CLASS_SUMMARY_ITEM::
drm_class_summary_item_fields         DRM_Class_Summary_Item_Fields;
DRM_EC_AUGMENTED_3D_LOCATION:
    ec_augmented_3D_location_fields       EC_Augmented_3D_Location_Fields;
DRM_EC_SURFACE_LOCATION:
ec_surface_location_fields            EC_Surface_Location_Fields;
DRM_EDCS_USE_SUMMARY_ITEM:
edcs_use_summary_item_fields          EDCS_Use_Summary_Item_Fields;
DRM_EDGE_DIRECTION:
edge_direction_fields                 Edge_Direction_Fields;
DRM_EI_3D_LOCATION:
ei_3D_location_fields                 EI_3D_Location_Fields;
DRM_ELLIPSE:
ellipse_fields                        Ellipse_Fields;
DRM_ENUMERATION_AXIS:
enumeration_axis_fields               Enumeration_Axis_Fields;
DRM_ENVIRONMENT_ROOT:
environment_root_fields               Environment_Root_Fields;
DRM_ENVIRONMENTAL_DOMAIN_SUMMARY:
environmental_domain_summary_fields   Environmental_Domain_Summary_Fields;
DRM_FACE_DIRECTION:
face_direction_fields                 Face_Direction_Fields;
DRM_FADE_RANGE:
fade_range_fields                     Fade_Range_Fields;
DRM_FEATURE_FACE:
feature_face_fields                   Feature_Face_Fields;
DRM_FEATURE_TOPOLOGY_HIERARCHY:
feature_topology_hierarchy_fields     Feature_Topology_Hierarchy_Fields;
DRM_FEATURE_VOLUME:
    feature_volume_fields                 Feature_Volume_Fields;
DRM_FLASHING_LIGHT_BEHAVIOUR:
flashing_light_behaviour_fields       Flashing_Light_Behaviour_Fields;
DRM_FUNCTION:
function_fields                       Function_Fields;
DRM_FUNCTIONAL_ASSOCIATION_DATA:
    functional_association_data_fields    Functional_Association_Data_Fields;
DRM_GEOMETRIC_CENTRE:
geometric_centre_fields               Geometric_Centre_Fields;
DRM_GEOMETRY_TOPOLOGY_HIERARCHY:
geometry_topology_hierarchy_fields    Geometry_Topology_Hierarchy_Fields;
DRM_GRID_OVERLAP:
grid_overlap_fields                   Grid_Overlap_Fields;
DRM_HAEC_3D_LOCATION:
    haec_3D_location_fields               HAEC_3D_Location_Fields;
DRM_HEEC_3D_LOCATION:
    heec_3D_location_fields               HEEC_3D_Location_Fields;
DRM_HEEQ_3D_LOCATION:
    heeq_3D_location_fields               HEEQ_3D_Location_Fields;
DRM_HIERARCHY_DATA:
hierarchy_data_fields                 Hierarchy_Data_Fields;
DRM_HIERARCHY_SUMMARY_ITEM:
hierarchy_summary_item_fields         Hierarchy_Summary_Item_Fields;
DRM_HSV_COLOUR:
hsv_colour_fields                     HSV_Colour_Fields;
DRM_HSV_COLOUR_CONTROL_LINK:
hsv_colour_control_link_fields        HSV_Colour_Control_Link_Fields;
DRM_IDENTIFICATION:
identification_fields                 Identification_Fields;
DRM_IMAGE:
image_fields                          Image_Fields;
DRM_IMAGE_ANCHOR:
image_anchor_fields                   Image_Anchor_Fields;
DRM_IMAGE_MAPPING_FUNCTION:
image_mapping_function_fields         Image_Mapping_Function_Fields;
DRM_IN_OUT:
in_out_fields                         In_Out_Fields;
DRM_INDEX_LOD_DATA:
index_lod_data_fields                 Index_LOD_Data_Fields;
DRM_INFINITE_LIGHT:
infinite_light_fields                 Infinite_Light_Fields;
DRM_INLINE_COLOUR:
inline_colour_fields                  Inline_Colour_Fields;
DRM_INTERFACE_TEMPLATE:
interface_template_fields             Interface_Template_Fields;
DRM_INTERVAL_AXIS:
interval_axis_fields                  Interval_Axis_Fields;
DRM_IRREGULAR_AXIS:
irregular_axis_fields                 Irregular_Axis_Fields;
DRM_KEYWORDS:
keywords_fields                       Keywords_Fields;
DRM_LCC_AUGMENTED_3D_LOCATION:
lcc_augmented_3D_location_fields      LCC_Augmented_3D_Location_Fields;
DRM_LCC_SURFACE_LOCATION:
lcc_surface_location_fields           LCC_Surface_Location_Fields;
DRM_LCE_3D_LOCATION:
lce_3D_location_fields                LCE_3D_Location_Fields;
DRM_LEGAL_CONSTRAINTS:
legal_constraints_fields              Legal_Constraints_Fields;
DRM_LIGHT_RENDERING_PROPERTIES:
light_rendering_properties_fields     Light_Rendering_Properties_Fields;
DRM_LIGHT_RENDERING_PROPERTIES_CONTROL_LINK:
    light_rendering_properties_control_link_fields
                              LightRenderingPropertiesControlLinkFields;
DRM_LIGHT_SOURCE:
light_source_fields                   Light_Source_Fields;
DRM_LIGHT_SOURCE_CONTROL_LINK:
light_source_control_link_fields      Light_Source_Control_Link_Fields;
DRM_LINE:
line_fields                           Line_Fields;
DRM_LINEAGE:
lineage_fields                        Lineage_Fields;
DRM_LINEAR_GEOMETRY:
linear_geometry_fields                Linear_Geometry_Fields;
DRM_LITERAL:
literal_fields                        Literal_Fields;
DRM_LOBE_DATA:
lobe_data_fields                      Lobe_Data_Fields;
DRM_LOCAL_4X4:
local_4x4_fields                      Local_4x4_Fields;
DRM_LOD_RELATED_FEATURES:
lod_related_features_fields           LOD_Related_Features_Fields;
DRM_LOD_RELATED_GEOMETRY:
lod_related_geometry_fields           LOD_Related_Geometry_Fields;
DRM_LSA_2D_LOCATION:
lsa_2D_location_fields                LSA_2D_Location_Fields;
DRM_LSP_2D_LOCATION:
lsp_2D_location_fields                LSP_2D_Location_Fields;
DRM_LSR_2D_LOCATION:
lsr_2D_location_fields                LSR_2D_Location_Fields;
DRM_LSR_3D_LOCATION:
lsr_3D_location_fields                LSR_3D_Location_Fields;
DRM_LSR_3D_LOCATION_CONTROL_LINK:
lsr_3D_location_control_link_fields   LSR_3D_Location_Control_Link_Fields;
DRM_LTSAS_3D_LOCATION:
ltsas_3D_location_fields              LTSAS_3D_Location_Fields;
DRM_LTSAS_SURFACE_LOCATION:
ltsas_surface_location_fields         LTSAS_Surface_Location_Fields;
DRM_LTSC_3D_LOCATION:
ltsc_3D_location_fields               LTSC_3D_Location_Fields;
DRM_LTSC_SURFACE_LOCATION:
ltse_surface_location_fields          LTSC_Surface_Location_Fields;
DRM_LTSE_3D_LOCATION:
ltse_3D_location_fields               LTSE_3D_Location_Fields;
DRM_LTSE_SURFACE_LOCATION:
ltsc_surface_location_fields          LTSE_Surface_Location_Fields;
DRM_M_AUGMENTED_3D_LOCATION:
m_augmented_3D_location_fields        M_Augmented_3D_Location_Fields;
DRM_M_SURFACE_LOCATION:
m_surface_location_fields             M_Surface_Location_Fields;
DRM_MAP_SCALE_LOD_DATA:
map_scale_lod_data_map_scale          Map_Scale_LOD_Data_Fields;
DRM_MESH_FACE_TABLE:
mesh_face_table_fields                Mesh_Face_Table_Fields;
DRM_MODEL:
model_fields                          Model_Fields;
DRM_MODEL_INSTANCE_TEMPLATE_INDEX:
model_instance_template_index_fields Model_Instance_Template_Index_Fields;
DRM_MOVING_LIGHT_BEHAVIOUR:
moving_light_behaviour_fields         Moving_Light_Behaviour_Fields;
DRM_OCTANT_DATA:
octant_data_fields                    Octant_Data_Fields;
DRM_OCTANT_RELATED_FEATURES:
octant_related_features_fields        Octant_Related_Features_Fields;
DRM_OCTANT_RELATED_GEOMETRY:
octant_related_geometry_fields        Octant_Related_Geometry_Fields;
DRM_OMS_AUGMENTED_3D_LOCATION:
oms_augmented_location_3D_fields      OMS_Augmented_3D_Location_Fields;
DRM_OMS_SURFACE_LOCATION:
oms_surface_location_fields           OMS_Surface_Location_Fields;
DRM_OVERLOAD_PRIORITY_INDEX:
overload_priority_index_fields        Overload_Priority_Index_Fields;
DRM_PARALLELEPIPED_VOLUME_EXTENT:
parallelepiped_volume_extent_fields   Parallelepiped_Volume_Extent_Fields;
DRM_PD_3D_LOCATION:
pd_3D_location_fields                 PD_3D_Location_Fields;
DRM_PD_SURFACE_LOCATION:
pd_surface_location_fields            PD_Surface_Location_Fields;
DRM_PERIMETER_RELATED_FEATURE_TOPOLOGY:
perimeter_related_feature_topology_fields
                              Perimeter_Related_Feature_Topology_Fields;
DRM_PERIMETER_RELATED_FEATURES:
perimeter_related_features_fields     Perimeter_Related_Features_Fields;
DRM_PERIMETER_RELATED_GEOMETRY:
perimeter_related_geometry_fields     Perimeter_Related_Geometry_Fields;
DRM_PERIMETER_RELATED_GEOMETRY_TOPOLOGY:
perimeter_related_geometry_topology_fields
                              Perimeter_Related_Geometry_Topology_Fields;
DRM_POLYGON:
polygon_fields                        Polygon_Fields;
DRM_POLYGON_CONTROL_LINK:
polygon_control_link_fields           Polygon_Control_Link_Fields;
DRM_POSITIONAL_LIGHT:
positional_light_fields               Positional_Light_Fields;
DRM_PREDEFINED_FUNCTION:
predefined_function_fields            Predefined_Function_Fields;
DRM_PRESENTATION_DOMAIN:
presentation_domain_fields            Presentation_Domain_Fields;
DRM_PRIMITIVE_SUMMARY_ITEM:
primitive_summary_item_fields         Primitive_Summary_Item_Fields;
DRM_PROCESS_STEP:
process_step_fields                   Process_Step_Fields;
DRM_PROPERTY:
    property_fields                       Property_Fields;
DRM_PROPERTY_CHARACTERISTIC:
property_characteristic_fields        Property_Characteristic_Fields;
DRM_PROPERTY_DESCRIPTION:
property_description_fields           Property_Description_Fields;
DRM_PROPERTY_GRID:
property_grid_fields                  Property_Grid_Fields;
DRM_PROPERTY_SET_INDEX:
property_set_index_fields             Property_Set_Index_Fields;
DRM_PROPERTY_SET_INDEX_CONTROL_LINK:
property_set_index_control_link_fields
                              Property_Set_Index_Control_Link_Fields;
DRM_PROPERTY_SET_TABLE:
property_set_table_fields             Property_Set_Table_Fields;
DRM_PROPERTY_SET_TABLE_GROUP:
property_set_table_group_fields       Property_Set_Table_Group_Fields;
DRM_PROPERTY_TABLE_REFERENCE:
property_table_reference_fields       Property_Table_Reference_Fields;
DRM_PROPERTY_TABLE_REFERENCE_CONTROL_LINK:
    property_table_reference_control_link_fields
                              Property_Table_Reference_Control_Link_Fields;
DRM_PROPERTY_VALUE:
property_value_fields                 Property_Value_Fields;
DRM_PROXIMITY_DATA:
    proximity_data_fields                 Proximity_Data_Fields;
DRM_PS_AUGMENTED_3D_LOCATION:
ps_augmented_3D_location_fields       PS_Augmented_3D_Location_Fields;
DRM_PS_SURFACE_LOCATION:
ps_surface_location_fields            PS_Surface_Location_Fields;
DRM_PSEUDO_CODE_FUNCTION:
pseudo_code_function_fields           Pseudo_Code_Function_Fields;
DRM_PYRAMID_DIRECTIONAL_LIGHT:
pyramid_directional_light_fields      Pyramid_Directional_Light_Fields;
DRM_QUADRANT_DATA:
quadrant_data_fields                  Quadrant_Data_Fields;
DRM_QUADRANT_RELATED_FEATURES:
quadrant_related_features_fields      Quadrant_Related_Features_Fields;
DRM_QUADRANT_RELATED_GEOMETRY:
quadrant_related_geometry_fields      Quadrant_Related_Geometry_Fields;
DRM_REFERENCE_ORIGIN:
reference_origin_fields               Reference_Origin_Fields;
DRM_REFERENCE_SURFACE:
reference_surface_fields              Reference_Surface_Fields;
DRM_REFERENCE_VECTOR:
reference_vector_fields               Reference_Vector_Fields;
DRM_REFERENCE_VECTOR_CONTROL_LINK:
reference_vector_control_link_fields Reference_Vector_Control_Link_Fields;
DRM_REGULAR_AXIS:
regular_axis_fields                   Regular_Axis_Fields;
DRM_RELATIVE_TIME:
relative_time_fields                  Relative_Time_Fields;
DRM_RELATIVE_TIME_INTERVAL:
relative_time_interval_fields         Relative_Time_Interval_Fields;
DRM_RENDERING_PRIORITY_LEVEL:
rendering_priority_level_fields       Rendering_Priority_Level_Fields;
DRM_RENDERING_PROPERTIES:
rendering_properties_fields           Rendering_Properties_Fields;
DRM_RESPONSIBLE_PARTY:
responsible_party_fields              Responsible_Party_Fields;
DRM_RGB_COLOUR:
rgb_colour_fields                     RGB_Colour_Fields;
DRM_RGB_COLOUR_CONTROL_LINK:
rgb_colour_control_link_fields        RGB_Colour_Control_Link_Fields;
DRM_ROLE_DATA:
role_data_fields                    Role_Data_Fields;
DRM_ROTATING_LIGHT_BEHAVIOUR:
rotating_light_behaviour_fields       Rotating_Light_Behaviour_Fields;
DRM_ROTATION:
rotation_fields                       Rotation_Fields;
DRM_ROTATION_CONTROL_LINK:
rotation_control_link_fields          Rotation_Control_Link_Fields;
DRM_SCALE:
scale_fields                          Scale_Fields;
DRM_SCALE_CONTROL_LINK:
scale_control_link_fields             Scale_Control_Link_Fields;
DRM_SEASON:
season_fields                         Season_Fields;
DRM_SEC_3D_LOCATION:
sec_3D_location_fields                SEC_3D_Location_Fields;
DRM_SECURITY_CONSTRAINTS:
security_constraints_fields           Security_Constraints_Fields;
DRM_SEPARATING_PLANE_DATA:
separating_plane_data_fields          Separating_Plane_Data_Fields;
DRM_SEPARATING_PLANE_RELATED_GEOMETRY:
separating_plane_related_geometry_fields
                              Separating_Plane_Related_Geometry_Fields;
DRM_SEQ_3D_LOCATION:
    seq_3D_location_fields                SEQ_3D_Location_Fields;
DRM_SMD_3D_LOCATION:
smd_3D_location_fields                SMD_3D_Location_Fields;
DRM_SME_3D_LOCATION:
sme_3D_location_fields                SME_3D_Location_Fields;
DRM_SOUND:
sound_fields                          Sound_Fields;
DRM_SOUND_INSTANCE:
sound_instance_fields                 Sound_Instance_Fields;
DRM_SOUND_INSTANCE_CONTROL_LINK:
sound_instance_control_link_fields    Sound_Instance_Control_Link_Fields;
DRM_SOURCE:
source_fields                         Source_Fields;
DRM_SPATIAL_ASSOCIATION_DATA:
    spatial_association_data_