The SEDRIS Data Representation Model
APPENDIX A - Classes
Emissive Colour
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Class Name: Emissive Colour
Subclasses
This DRM class is concrete and has no subclasses.
Definition
An instance of this DRM class specifies the intensity component of a
<Primitive Colour>, used to represent
light emitted by the coloured object.
Since the <Emissive Colour> component is due to
light emitted by the object, it is independent of any light sources in the
environment, so it is
- independent of the angle of the lit object to the light source
- independent of the angle of the lit object to the observer
Primary Page in DRM Diagram:
Secondary Pages in DRM Diagram:
This class appears on only one page of the DRM class diagram.
Example
See <Primitive Colour>.
FAQs
- Does SEDRIS use the OpenGL lighting model?
No, although the terminology is similar. SEDRIS handles transparency
somewhat differently than OpenGL does, among other things. For a
description of the OpenGL lighting model, see
[OPENGL], Chapter 5 "Lighting".
Constraints
Composed of (two-way)
Component of (two-way)
Inherited Field Elements
This class has no inherited field elements.
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Next: Enumeration Axis.
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Last updated: July 16, 2004
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Copyright © 2004 SEDRIS™
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