Table 6.196—DRM_Point

Property

Description

Superclass

·         <DRM Primitive Geometry>

Class

·         <DRM Point>

Subclass

·         none

Definition

An object of this DRM class specifies an attributed location, which conceptually has no spatial extents.

Example(s)

·         The abstract representation of the sun, a <DRM Point> in space from which the light emanates. However, no polygonal representation exists.

·         The headlight of a jeep as viewed from a kilometer away.

Inherited field elements

field_name

range

Field_Data_Type

none

 

 

Field elements

field_name

range

Field_Data_Type

none

 

 

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)

·         zero or more <DRM Geometry Node>s

Composed of (two-way) (inherited)

·          

Composed of (two-way)

·         zero or more {ordered} <DRM Attribute Set Index>s

·         zero or one <DRM Classification Data>

·         zero or more {ordered} <DRM Colour>s

·         zero or one <DRM Conformal Behaviour>

·         zero or more {ordered} <DRM Image Mapping Function>s

·         zero or one <DRM Light Rendering Properties>

·         one <DRM Location>

·         zero or one <DRM Presentation Domain>

·         zero or more <DRM Property Table>s

·         zero or more <DRM Property Table Reference>s

·         zero or more <DRM Property Value>s

·         zero or more <DRM Reference Vector>s

·         zero or one <DRM Rendering Priority Level>

·         zero or one <DRM Rendering Properties>

·         zero or more <DRM Tack Point>s

·         zero or more {ordered} <DRM Texture Coordinate>s

·         zero or one <DRM Union Of Primitive Geometry>

Composed of (two-way metadata) (inherited)

·         zero or one <DRM Time Constraints Data>

Composed of (two-way metadata)

·         none

Component of (two-way) (inherited)

·         one or more <DRM Union Of Primitive Geometry>s

Component of (two-way)

·         none

Constraints

·         Colour mapping restrictions

·         Image mapping functions and texture coordinates

·         Nested primitive geometry

·         No attribute conflicts

·         Non-crossing aggregations

·         Non-cyclic aggregations

·         Non-nestable continuous level of detail

·         Precedence of Attribute_Set_Index

Notes

none

Class diagram

<DRM Point>