The SEDRIS Data Representation Model
APPENDIX A - Classes
Vertex

Class Name: Vertex

Superclass - <SEDRIS Abstract Base>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class specifies a point that defines the end of a line or the corner of a face. <Vertex> instances are used in the specification of:

  1. arcs,
  2. finite element meshes,
  3. lines, and
  4. polygons.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

  1. <Vertex> instances are used to specify the three corners of a triangular polygon.

  2. <Vertex> instances are used to specify the two endpoints of an arc.

FAQs

No FAQs supplied.

Constraints

Associated with (two-way)

Composed of (two-way)

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Notes

Associated with Notes


Geometry_Node

The <Geometry Node> instance that is associated with a <Vertex> instance is used in topological representations, if topology is explicitly provided.

Composed of Notes


Texture_Coordinate

See <<Image Mapping Functions and Texture Coordinates>>.


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Last updated: July 26, 2006 Copyright © 2006 SEDRIS