Table 6.272 — DRM_Tack_Point

Property

Description

Class

  • <DRM Tack Point>

Superclass

Subclass

  • None.

Definition

An instance of this DRM class specifies a <DRM Location> instance that corresponds to a fixed position on one or more images depending on the number of corresponding <DRM Image Mapping Function> instances that are components of the aggregating <DRM Primitive Geometry> instance.

Class diagram

Figure 6.340 — DRM_Tack_Point

Inherited field elements

Field name

Range

Field data type

None

   

Field elements

Field name

Range

Field data type

None

   

Default field values

Default field values for DRM_Tack_Point

Associated to (one-way) (inherited)

  • None.

Associated to (one-way)

  • None.

Associated by (one-way) (inherited)

  • None.

Associated by (one-way)

  • None.

Associated with (two-way) (inherited)

  • None.

Associated with (two-way)

  • None.

Composed of (two-way) (inherited)

  • None.

Composed of (two-way)

Composed of (two-way metadata) (inherited)

  • None.

Composed of (two-way metadata)

  • None.

Component of (two-way) (inherited)

  • None.

Component of (two-way)

Constraints

Clarifications

None.

Example(s)

  • Consider a <DRM Polygon> instance P for which the data provider wishes to supply a texture coordinate at the centre of P rather than at one of its vertices To achieve this, the data provider supplies a <DRM Tack Point> component K for P such that K specifies the centre of P as its <DRM Location> component and the desired texture coordinate as a <DRM Texture Coordinate> component.