| authors |
Griffiths, J.G. |
| year |
1984 |
| title |
A Depth-Coherence Scanline Algorithm for Displaying Curved Surfaces |
| source |
Computer Aided Design. March, 1984. vol. 16: pp. 91-101 : ill. includes bibliography |
| summary |
A scanline algorithm is presented which generates a realistic picture of a solid object bounded by curved surfaces. Externally, a surface is described by parametric equations. The internal representation is comprised of meshes of cubic splines which may be subdivided. Memory is saved by delaying subdivision, and by using a novel garbage collection technique. Time is saved by exploiting depth coherence. A viewpoint and scanline fix a cross-section represented as a set of curves. There are usually only a few of these to compare, and the curve nearest the viewer often remains nearest over much of its length |
| keywords |
algorithms, curves, curved surfaces, splines, computer graphics, hidden surfaces |
| series |
CADline |
| references |
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| last changed |
2003/06/02 13:58 |
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