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Figure 30.5
A donut shape built with a donut-maker program script. |
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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 [ # Donut, initially empty Shape { appearance Appearance { material Material { } } geometry DEF Donut Extrusion { crossSection [ ] spine [ ] creaseAngle 1.57 beginCap FALSE endCap FALSE } }, # Donut maker DEF DonutMaker Script { url "donutmkr.js" field SFFloat crossSectionRadius 1.0 field SFFloat spineRadius 2.0 field SFInt32 crossSectionResolution 16 field SFInt32 spineResolution 16 eventIn SFFloat set_crossSectionRadius eventIn SFFloat set_spineRadius eventOut MFVec2f crossSection_changed eventOut MFVec3f spine_changed } ] } ROUTE DonutMaker.crossSection_changed TO Donut.set_crossSection ROUTE DonutMaker.spine_changed TO Donut.set_spine