The SEDRIS Data Representation Model
APPENDIX A - Classes
Colour Shininess

Class Name: Colour Shininess

Superclass - <SEDRIS Abstract Base>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

The specular coefficient that specifies how shiny a colour is to appear, based on the angle between lines from the observer to the coloured object to the light source.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

Example

  1. Consider a <Colour Table> instance with a <Presentation Domain> having presentation_domain = { SE_PRES_DOM_OTW }, the entries of which are intended for use in representing metallic surfaces in the Out-the-Window (OTW) visual domain. Each <Primitive Colour> in the table is defined by a <Specular Colour> and an <Ambient Colour>.

    Depending on the angles between the observer, the metallic surface, and the light source, the shininess of each <Specular Colour> will vary. Hence, each <Specular Colour> in the table is given a <Colour Shininess> component, if the corresponding metal is sufficiently reflective.

FAQs

No FAQs supplied.

Constraints

None.

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_Long_Float shininess;
Prev: Colour Set. Next: Colour Table. Up:Index.

Last updated: May 15, 2003 Copyright © 2003 SEDRIS™