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Figure 19.26
An elevation grid using a special shading effect. |
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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 { }
}
geometry ElevationGrid {
xDimension 5
zDimension 5
xSpacing 1.0
zSpacing 1.0
solid FALSE
height [
0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0,
0.0, 0.0, 0.0, 0.0, 0.0,
]
normalPerVertex TRUE
normal Normal {
vector [
# First row
0.0 1.0 0.0, 0.0 1.0 0.0,
0.0 1.0 0.0, 0.0 1.0 0.0,
0.0 1.0 0.0,
# Second row
0.0 1.0 0.0, -0.3 0.3 -0.3,
0.0 0.5 -0.5, 0.3 0.3 -0.3,
0.0 1.0 0.0,
# Third row
0.0 1.0 0.0, -0.5 0.5 0.0,
-0.5 0.5 0.0, 0.5 0.5 0.0,
0.0 1.0 0.0,
# Fourth row
0.0 1.0 0.0, -0.3 0.3 -0.3,
0.0 0.5 -0.5, 0.3 0.3 -0.3,
0.0 1.0 0.0,
# Fifth row
0.0 1.0 0.0, 0.0 1.0 0.0,
0.0 1.0 0.0, 0.0 1.0 0.0,
0.0 1.0 0.0,
]
}
}
}