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Figure 8.6
One interpolator used to move three cubes. |
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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
Group {
children [
# Moving box
DEF Cube1 Transform {
children DEF ACube Shape {
appearance Appearance {
material Material { }
}
geometry Box { size 1.0 1.0 1.0 }
}
},
Transform {
translation -2.0 0.0 0.0
children DEF Cube2 Transform {
children USE ACube
}
},
Transform {
translation 2.0 0.0 0.0
children DEF Cube3 Transform {
children USE ACube
}
},
# Animation clock
DEF Clock TimeSensor {
cycleInterval 4.0
loop TRUE
},
# Animation path
DEF CubePath PositionInterpolator {
key [
0.00, 0.11, 0.17, 0.22,
0.33, 0.44, 0.50, 0.55,
0.66, 0.77, 0.83, 0.88,
0.99
]
keyValue [
0.0 0.0 0.0, 1.0 1.96 1.0,
1.5 2.21 1.5, 2.0 1.96 2.0,
3.0 0.0 3.0, 2.0 1.96 3.0,
1.5 2.21 3.0, 1.0 1.96 3.0,
0.0 0.0 3.0, 0.0 1.96 2.0,
0.0 2.21 1.5, 0.0 1.96 1.0,
0.0 0.0 0.0
]
}
]
}
ROUTE Clock.fraction_changed TO CubePath.set_fraction
ROUTE CubePath.value_changed TO Cube1.set_translation
ROUTE CubePath.value_changed TO Cube2.set_translation
ROUTE CubePath.value_changed TO Cube3.set_translation