<
Viewpoint description='
Front view, 4 inches above ground'
position='
0 4 20'/>
<
Viewpoint description='
Side view, 6 inches above ground'
orientation='
0 1 0 1.57'
position='
25 6 0'/>
<
Viewpoint description='
Top-down view, 20 inches above'
orientation='
1 0 0 -1.57'
position='
0 28 0'/>
<
Background groundAngle='
1.309 1.571'
groundColor='
0.1 0.1 0 0.4 0.25 0.2 0.6 0.6 0.6'
skyAngle='
1.309 1.571'
skyColor='
0 0.2 0.7 0 0.5 1 1 1 1'/>
<!-- Upper road surface is elevated y=8 inches in the air -->
<
Transform translation='
0 8 0'>
<
Group DEF='
Road'>
<
Shape>
<!-- Road model is x=20 inches long by z=7 inches wide, with posterboard y=0.25 inches thick -->
<
Box size='
20 0.2 7'/>
<!-- Road surface color is grey -->
<
Appearance DEF='
GreyAppearance'>
<Material diffuseColor='0.4 0.4 0.4'/>
</
Appearance>
</
Shape>
<
Transform translation='
0 0.2 0.3'>
<
Shape DEF='
WhiteLine'>
<
Box size='
20 0.01 0.4'/>
<
Appearance DEF='
WhiteAppearance'>
<Material diffuseColor='1 1 1' emissiveColor='0.5 0.5 0.5'/>
</
Appearance>
</
Shape>
</
Transform>
<
Transform translation='
0 0.2 -0.3'>
</
Transform>
</
Group>
</
Transform>
<!-- Lower road is on the ground at y=0 inches, rotated 90 degrees around y axis -->
<
Transform rotation='
0 1 0 1.57'
translation='
0 0.1 0'>
</
Transform>
<!-- Vertical center of y=8 inch tall pillar is y=4 inches in the air -->
<!-- Center of each column matches top-down diagram -->
<
Transform DEF='
ColumnA'
translation='
-6 4 -2'>
<
Shape DEF='
Column'>
</
Shape>
</
Transform>
<
Transform DEF='
ColumnB'
translation='
6 4 -2'>
</
Transform>
<
Transform DEF='
ColumnC'
translation='
-6 4 2'>
</
Transform>
<
Transform DEF='
ColumnD'
translation='
6 4 2'>
</
Transform>
