Vertex

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:

arcs,
finite element meshes,
lines, and
polygons.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

<Vertex> instances are used to specify the three corners of a triangular polygon.
<Vertex> instances are used to specify the two endpoints of an arc.

FAQs

No FAQs supplied.

Constraints

Associated with (two-way)

zero or one <Geometry Node> instance¹

Composed of (two-way)

zero or more <Colour> instances
zero or one <Conformal Behaviour> instance
one <Location> instance
zero or more <Property Table Reference> instances
zero or one <Reference Vector> instance
zero or more {ordered} <Texture Coordinate> instances²

Component of (two-way)

zero or more <Arc> instances
zero or more <Finite Element Mesh> instances
zero or more <Line> instances
zero or more <Polygon> instances

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