Table 6.163—DRM_Linear_Geometry

Property

Description

Superclass

·         <DRM Primitive Geometry>

Class

·         <DRM Linear Geometry>

Subclass

·         <DRM Line>

·         <DRM Arc>

Definition

This is an abstract DRM class that specifies a conceptual grouping of geometric linear representations.

Example(s)

·         A city or county border line.

·         A fence.

Inherited field elements

field_name

range

Field_Data_Type

none

 

 

Field elements

field_name

range

Field_Data_Type

count1

 

Short_Integer_Unsigned

suppress_last2

 

Boolean

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)

·         optionally, some {ordered} DRM_Attribute_Set_Indices

·         optionally, a DRM_Classification_Data

·         optionally, some {ordered} DRM_Color

·         optionally, some {ordered} DRM_Image_Mapping_Functions

·         optionally, a DRM_Light_Rendering_Properties

·         optionally, some DRM_Property_Tables

·         optionally, some DRM_Property_Table_References

·         optionally, some DRM_Property_Values

·         optionally, a DRM_Rendering_Priority_Level

·         optionally, a DRM_Rendering_Properties

·         optionally, some DRM_Tack_Points

·         optionally, a DRM_Union_Of_Primitive_Geometry

Composed of (two-way)

·         none

Composed of (two-way metadata) (inherited)

·         optionally, a 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

·         Continuous LOD restrictions

·         Image mapping functions and texture coordinates

·         Nested primitive geometry

·         No attribute conflicts

·         Non-crossing aggregations

·         Non-cyclic aggregations

·         Precedence of Attribute_Set_Index

Notes

1 The number of evenly divided segments/points along the linear geometry. A default of zero indicates that the linear geometry is solid.

2 Flag indicating whether the last segment/point is suppressed.

Class diagram

<DRM Linear Geometry>