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Figure 15.12
A torus built using a circular cross section swept along a circular spine. |
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Click on the image to view the VRML scene. |
#VRML V2.0 utf8
# The VRML 2.0 Sourcebook
# Copyright (c) 1997
# Andrea L. Ames, David R. Nadeau, and John L. Moreland
Shape {
appearance Appearance {
material Material {
diffuseColor 1.0 0.0 1.0
}
}
geometry Extrusion {
creaseAngle 1.57
beginCap FALSE
endCap FALSE
crossSection [
# Circle
1.00 0.00, 0.92 -0.38,
0.71 -0.71, 0.38 -0.92,
0.00 -1.00, -0.38 -0.92,
-0.71 -0.71, -0.92 -0.38,
-1.00 -0.00, -0.92 0.38,
-0.71 0.71, -0.38 0.92,
0.00 1.00, 0.38 0.92,
0.71 0.71, 0.92 0.38,
1.00 0.00
]
spine [
# Circle
2.00 0.0 0.00, 1.85 0.0 0.77,
1.41 0.0 1.41, 0.77 0.0 1.85,
0.00 0.0 2.00, -0.77 0.0 1.85,
-1.41 0.0 1.41, -1.85 0.0 0.77,
-2.00 0.0 0.00, -1.85 0.0 -0.77,
-1.41 0.0 -1.41, -0.77 0.0 -1.85,
0.00 0.0 -2.00, 0.77 0.0 -1.85,
1.41 0.0 -1.41, 1.85 0.0 -0.77,
2.00 0.0 0.00,
]
}
}