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Library/Examples/Gears/gears.x3d
ff07f97 Nov 16, 2015
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.0//EN" "http://www.web3d.org/specifications/x3d-3.0.dtd">
<X3D profile='Full' version='3.0' xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation='http://www.web3d.org/specifications/x3d-3.0.xsd'>
<head>
<meta name='comment' content='World of Titania'/>
<meta name='created' content='Mon, 14 Sep 2015 21:00:05 GMT'/>
<meta name='creator' content='Holger Seelig'/>
<meta name='generator' content='Titania V1.1.0, http://titania.create3000.de'/>
<meta name='icon' content='../../ui/icons/icon-bw.svg'/>
<meta name='modified' content='Mon, 14 Sep 2015 21:00:05 GMT'/>
<meta name='title' content='about:gears'/>
</head>
<Scene>
<ExternProtoDeclare name='Rotor' url='"Rotor.x3d"'>
<field accessType='inputOutput' type='SFBool' name='enabled'/>
<field accessType='inputOutput' type='SFTime' name='cycleInterval'/>
<field accessType='inputOutput' type='SFVec3f' name='axis'/>
<field accessType='inputOutput' type='SFFloat' name='angle'/>
<field accessType='inputOutput' type='SFBool' name='loop'/>
<field accessType='inputOutput' type='SFTime' name='startTime'/>
<field accessType='inputOutput' type='SFTime' name='pauseTime'/>
<field accessType='inputOutput' type='SFTime' name='resumeTime'/>
<field accessType='inputOutput' type='SFTime' name='stopTime'/>
<field accessType='outputOnly' type='SFBool' name='isActive'/>
<field accessType='outputOnly' type='SFTime' name='cycleTime'/>
<field accessType='outputOnly' type='SFRotation' name='rotation_changed'/>
</ExternProtoDeclare>
<ProtoDeclare name='Gear'>
<ProtoInterface>
<field accessType='inputOutput' type='SFFloat' name='teeth' value='10'/>
<field accessType='inputOutput' type='SFFloat' name='toothDepth' value='2'/>
<field accessType='inputOutput' type='SFFloat' name='innerRadius' value='1'/>
<field accessType='inputOutput' type='SFFloat' name='outerRadius' value='4'/>
<field accessType='inputOutput' type='SFFloat' name='width' value='1'/>
<field accessType='initializeOnly' type='SFFloat' name='creaseAngle'/>
</ProtoInterface>
<ProtoBody>
<IndexedFaceSet DEF='Gear'>
<IS>
<connect nodeField='creaseAngle' protoField='creaseAngle'/>
</IS>
<Coordinate/>
</IndexedFaceSet>
<Script
directOutput='true'>
<field accessType='inputOutput' type='SFFloat' name='teeth'/>
<field accessType='inputOutput' type='SFFloat' name='toothDepth'/>
<field accessType='inputOutput' type='SFFloat' name='innerRadius'/>
<field accessType='inputOutput' type='SFFloat' name='outerRadius'/>
<field accessType='inputOutput' type='SFFloat' name='width'/>
<field accessType='initializeOnly' type='SFNode' name='gear'>
<IndexedFaceSet USE='Gear'/>
</field>
<IS>
<connect nodeField='teeth' protoField='teeth'/>
<connect nodeField='toothDepth' protoField='toothDepth'/>
<connect nodeField='innerRadius' protoField='innerRadius'/>
<connect nodeField='outerRadius' protoField='outerRadius'/>
<connect nodeField='width' protoField='width'/>
</IS>
<![CDATA[vrmlscript:
function initialize ()
{
eventsProcessed ();
}
function eventsProcessed ()
{
print ('### Generating gear ...');
var indices = new MFInt32 ();
var points = new MFVec3f ();
var cos = Math .cos;
var sin = Math .sin;
// Radien and tooth angle
var radius0 = innerRadius;
var radius1 = outerRadius - toothDepth / 2;
var radius2 = outerRadius + toothDepth / 2;
var da = 2 * Math .PI / teeth / 4;
// Front vectors
var vectorf0 = new SFVec3f (radius0, 0, width * 0.5);
var vectorf1 = new SFVec3f (radius1, 0, width * 0.5);
var vectorf2 = new SFVec3f (radius2, 0, width * 0.5);
// Back vectors
var vectorb0 = new SFVec3f (radius0, 0, -width * 0.5);
var vectorb1 = new SFVec3f (radius1, 0, -width * 0.5);
var vectorb2 = new SFVec3f (radius2, 0, -width * 0.5);
// Generate front face indices
for (var i = 0; i < teeth; ++ i)
{
var index = i * 3;
indices [indices .length] = index;
indices [indices .length] = index + 1;
indices [indices .length] = index + 2;
indices [indices .length] = index + 4;
indices [indices .length] = index + 3;
indices [indices .length] = -1;
}
// Generate front face points
for (var i = 0; i < teeth + 1; ++ i)
{
var angle = i * 2 * Math .PI / teeth;
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorf0);
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorf1);
points [points .length] = new SFRotation (0, 0, 1, angle + 3 * da) .multVec (vectorf1);
}
points .length = points .length - 1;
points [points .length] = new SFVec3f ();
points [points .length] = new SFVec3f ();
points [points .length] = new SFVec3f ();
// Generate front sides of teeth indices
for (var i = 0; i < teeth; ++ i)
{
var index = i * 4;
indices [indices .length] = points .length + index;
indices [indices .length] = points .length + index + 1;
indices [indices .length] = points .length + index + 2;
indices [indices .length] = points .length + index + 3;
indices [indices .length] = -1;
}
// Generate front sides of teeth points
for (var i = 0; i < teeth; ++ i)
{
var angle = i * 2 * Math .PI / teeth;
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorf1);
points [points .length] = new SFRotation (0, 0, 1, angle + da) .multVec (vectorf2);
points [points .length] = new SFRotation (0, 0, 1, angle + 2 * da) .multVec (vectorf2);
points [points .length] = new SFRotation (0, 0, 1, angle + 3 * da) .multVec (vectorf1);
}
// Generate back face indices
for (var i = 0; i < teeth; ++ i)
{
var index = i * 3;
indices [indices .length] = points .length + index;
indices [indices .length] = points .length + index + 3;
indices [indices .length] = points .length + index + 4;
indices [indices .length] = points .length + index + 2;
indices [indices .length] = points .length + index + 1;
indices [indices .length] = -1;
}
// Generate back face points
for (var i = 0; i < teeth + 1; ++ i)
{
var angle = i * 2 * Math .PI / teeth;
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorb0);
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorb1);
points [points .length] = new SFRotation (0, 0, 1, angle + 3 * da) .multVec (vectorb1);
}
points .length = points .length - 1;
// Generate back sides of teeth indices
for (var i = 0; i < teeth; ++ i)
{
var index = i * 4;
indices [indices .length] = points .length + index;
indices [indices .length] = points .length + index + 1;
indices [indices .length] = points .length + index + 2;
indices [indices .length] = points .length + index + 3;
indices [indices .length] = -1;
}
// Generate front sides of teeth points
for (var i = 0; i < teeth; ++ i)
{
var angle = i * 2 * Math .PI / teeth;
points [points .length] = new SFRotation (0, 0, 1, angle + 3 * da) .multVec (vectorb1);
points [points .length] = new SFRotation (0, 0, 1, angle + 2 * da) .multVec (vectorb2);
points [points .length] = new SFRotation (0, 0, 1, angle + da) .multVec (vectorb2);
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorb1);
}
// Generate outward faces of teeth indices
for (var i = 0; i < teeth * 4; ++ i)
{
var index = i * 2;
indices [indices .length] = points .length + index;
indices [indices .length] = points .length + index + 1;
indices [indices .length] = points .length + index + 3;
indices [indices .length] = points .length + index + 2;
indices [indices .length] = -1;
}
indices [indices .length - 3] = points .length + 1;
indices [indices .length - 2] = points .length;
// Generate outward faces of teeth points
for (var i = 0; i < teeth; ++ i)
{
var angle = i * 2 * Math .PI / teeth;
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorf1);
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorb1);
points [points .length] = new SFRotation (0, 0, 1, angle + da) .multVec (vectorf2);
points [points .length] = new SFRotation (0, 0, 1, angle + da) .multVec (vectorb2);
points [points .length] = new SFRotation (0, 0, 1, angle + 2 * da) .multVec (vectorf2);
points [points .length] = new SFRotation (0, 0, 1, angle + 2 * da) .multVec (vectorb2);
points [points .length] = new SFRotation (0, 0, 1, angle + 3 * da) .multVec (vectorf1);
points [points .length] = new SFRotation (0, 0, 1, angle + 3 * da) .multVec (vectorb1);
}
// Generate inside radius cylinder points
for (var i = 0; i < teeth; ++ i)
{
var index = i * 2;
indices [indices .length] = points .length + index;
indices [indices .length] = points .length + index + 1;
indices [indices .length] = points .length + index + 3;
indices [indices .length] = points .length + index + 2;
indices [indices .length] = -1;
}
indices [indices .length - 3] = points .length + 1;
indices [indices .length - 2] = points .length;
// Generate inside radius cylinder indices
for (var i = 0; i < teeth + 1; ++ i)
{
var angle = i * 2 * Math .PI / teeth;
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorb0);
points [points .length] = new SFRotation (0, 0, 1, angle) .multVec (vectorf0);
}
print ('### Generating gear done.');
gear .coord .point = points;
gear .set_coordIndex = indices;
}
]]>
</Script>
</ProtoBody>
</ProtoDeclare>
<Viewpoint
description='Home'
position='0 0 20'/>
<ProtoInstance name='Rotor' DEF='RedRotor'>
<fieldValue name='cycleInterval' value='10'/>
<fieldValue name='loop' value='true'/>
</ProtoInstance>
<ProtoInstance name='Rotor' DEF='GreenRotor'>
<fieldValue name='cycleInterval' value='5'/>
<fieldValue name='loop' value='true'/>
</ProtoInstance>
<ProtoInstance name='Rotor' DEF='BlueRotor'>
<fieldValue name='cycleInterval' value='5'/>
<fieldValue name='loop' value='true'/>
</ProtoInstance>
<Transform DEF='RedGear_1'
translation='-2.59808 -2.39242 0.725499'
rotation='0.543846 0.826436 0.145723 0.627057'>
<Transform DEF='Gear_1'>
<Shape>
<Appearance>
<Material
diffuseColor='0.8 0.1 0'/>
</Appearance>
<ProtoInstance name='Gear' containerField='geometry'>
<fieldValue name='teeth' value='20'/>
<fieldValue name='toothDepth' value='0.7'/>
<fieldValue name='creaseAngle' value='0.6'/>
</ProtoInstance>
</Shape>
</Transform>
</Transform>
<Transform DEF='GreenGear_1'
translation='2.68468 -1.34925 -2.14056'
rotation='0.111593 0.985198 0.130124 3.70575'>
<Transform DEF='Gear_2'>
<Shape>
<Appearance>
<Material
diffuseColor='0 0.8 0.2'/>
</Appearance>
<ProtoInstance name='Gear' containerField='geometry'>
<fieldValue name='toothDepth' value='0.7'/>
<fieldValue name='innerRadius' value='0.5'/>
<fieldValue name='outerRadius' value='2'/>
<fieldValue name='width' value='2'/>
<fieldValue name='creaseAngle' value='0.7'/>
</ProtoInstance>
</Shape>
</Transform>
</Transform>
<Transform DEF='BlueGear_1'
translation='-2.68468 3.41658 2.89301'
rotation='-0.0562884 0.982778 0.176007 3.65356'>
<Transform DEF='Gear_3'>
<Shape>
<Appearance>
<Material
diffuseColor='0.2 0.2 1'/>
</Appearance>
<ProtoInstance name='Gear' containerField='geometry'>
<fieldValue name='toothDepth' value='0.7'/>
<fieldValue name='innerRadius' value='1.3'/>
<fieldValue name='outerRadius' value='2'/>
<fieldValue name='width' value='0.5'/>
</ProtoInstance>
</Shape>
</Transform>
</Transform>
<ROUTE fromNode='RedRotor' fromField='rotation_changed' toNode='Gear_1' toField='set_rotation'/>
<ROUTE fromNode='GreenRotor' fromField='rotation_changed' toNode='Gear_2' toField='set_rotation'/>
<ROUTE fromNode='BlueRotor' fromField='rotation_changed' toNode='Gear_3' toField='set_rotation'/>
</Scene>
</X3D>
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