The SEDRIS Data Representation Model
APPENDIX A - Classes
Geometry
Abstract Class Name: Geometry
Superclass -
<SEDRIS Abstract Base>
Subclasses
<Geometry Hierarchy>
<Primitive Geometry>
Definition
This is an abstract DRM class encapsulating both
the concepts of traditional geometry and
measured data and organizational methods used to organize instances of these traditional geometry and of other concrete DRM classes within a transmittal.
Primary Page in DRM Diagram:
3
Secondary Pages in DRM Diagram:
5
14
Example
A
<Geometry Model Instance>
of a polygonal
<Model>
of a helicopter.
A collection of polygons making up the graphical representation of a forest canopy.
A
<Property Grid Hook Point>
, connecting a
<Property Grid>
of terrain elevation data from DTED to the geometry of an
<Environment Root>
.
Constraints
<<No Attribute Conflicts>>
<<Non Crossing Aggregations>>
<<Non Cyclic Aggregations>>
<<Precedence of Attribute Set Index>>
Composed of (two-way)
zero or more {ordered}
<Attribute Set Index>
instances
zero or one
<Classification Data>
instance
zero or more
<Property Table>
instances
zero or more
<Property Table Reference>
instances
zero or more
<Property Value>
instances
Composed of (two-way metadata)
zero or one
<Time Constraints Data>
instance
Inherited Field Elements
This class has no inherited field elements.
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GEI Location 3D
.
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Geometry Edge
.
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.
Last updated: October 1, 2002
Copyright © 2002 SEDRIS