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Figure 11.1a
Three versions of a cafe sign within a Switch node with the whichChoice field set to 0. Compare with Figures 11.1b and c. |
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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
Switch {
whichChoice 0
choice [
# Version 0: simple round background
Group {
children [
DEF Cafe Shape {
appearance DEF GlowWhite Appearance {
material Material {
emissiveColor 1.0 1.0 1.0
diffuseColor 0.0 0.0 0.0
}
}
geometry Text {
string "Cafe"
fontStyle FontStyle {
justify "MIDDLE"
}
}
},
DEF BlueDisk Transform {
translation 0.0 0.3 -0.10
rotation 1.0 0.0 0.0 -1.57
children Shape {
appearance Appearance {
material Material {
diffuseColor 0.0 0.3 0.8
}
}
geometry Cylinder {
radius 1.3
height 0.1
}
}
}
]
},
# Version 1: round background with white edge
Group {
children [
USE Cafe,
USE BlueDisk,
DEF WhiteDisk Transform {
translation 0.0 0.3 -0.10
rotation 1.0 0.0 0.0 -1.57
children Shape {
appearance USE GlowWhite
geometry Cylinder {
radius 1.4
height 0.08
}
}
}
]
},
# Version 2: round background, white edge, red box
Group {
children [
USE Cafe,
USE BlueDisk,
USE WhiteDisk,
DEF RedAndWhiteBoxes Transform {
translation 0.0 0.3 -0.10
children [
Shape {
appearance Appearance {
material Material {
diffuseColor 0.8 0.0 0.0
}
}
geometry Box {
size 4.0 1.2 0.06
}
},
Shape {
appearance USE GlowWhite
geometry Box {
size 4.2 1.4 0.04
}
}
]
}
]
}
]
}