<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.3//EN" "https://www.web3d.org/specifications/x3d-3.3.dtd">
<X3D profile='Immersive' version='3.3'  xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation =' https://www.web3d.org/specifications/x3d-3.3.xsd '>
<head>
<meta name='title' content='ExtrusionCrossSectionPrototype.x3d'/>
<meta name='creator' content='Don Brutzman'/>
<meta name='created' content='22 November 2000'/>
<meta name='modified' content='20 October 2019'/>
<meta name='reference' content='ExtrusionExampleShip.x3d'/>
<meta name='reference' content='ExtrusionCrossSectionExampleShip.x3d'/>
<meta name='reference' content='ExtrusionCrossSectionExampleTorus.x3d'/>
<meta name='description' content='Shape prototype for Extrusion node that also draws spine line plus oriented, scaled cross sections at each spine point.'/>
<meta name='hint' content='Utilize ExtrusionCrossSection ProtoInstance as if it is a Shape node (with containerField="children") rather than an Extrusion node (with containerField="geometry") under a Shape.'/>
<meta name='reference' content='VRML 97 Specification, 6.18 Extrusion'/>
<meta name='reference' content=' https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#Extrusion '/>
<meta name='Image' content='VRML 97 Specification, Figure 6.6'/>
<meta name='Image' content=' https://www.web3d.org/technicalinfo/specifications/vrml97/Images/Extrusion.gif '/>
<meta name='reference' content=' http://realism.com/x3d/examples/Extrusion/_frame.html '/>
<meta name='reference' content=' http://www.cs.brown.edu/~gss/vrml/drawpoly.html '/>
<meta name='reference' content='ExtrusionXj3dGoldberg1999.java'/>
<meta name='reference' content=' http://web3d.metrolink.com/cgi-bin/cvsweb.cgi/x3d/src/com/sun/j3d/loaders/vrml97/impl/Attic/Extrusion.java '/>
<meta name='reference' content=' https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionPrototype.x3d '/>
<meta name='identifier' content=' https://X3dGraphics.com/examples/X3dForWebAuthors/Chapter06GeometryPointsLinesPolygons/ExtrusionCrossSectionPrototype.x3d '/>
<meta name='generator' content='X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit'/>
<meta name='license' content=' ../license.html'/>
</head>
<!--
Index for ProtoDeclare definition : ExtrusionCrossSection
Index for DEF nodes : CrossSectionFaces, CrossSectionFacesCoordinates, CrossSectionMaterial, CrossSectionScript, EnclosingExtrusion, ExternalExtrusion, ExtrusionAppearance, ExtrusionMaterial, FontCenter, InternalCrossSections, Spine, SpineCoordinates, SpineLine, SpineMaterial, TransparentAppearance
-->
<Scene>
<WorldInfo title='ExtrusionCrossSectionPrototype.x3d'/>
<ProtoDeclare name='ExtrusionCrossSection' appinfo='Shape prototype for Extrusion node that also draws spine line plus oriented scaled cross sections at each spine point'>
<ProtoInterface>
<!-- run-time eventIn Extrusion-modification interfaces for VRML97 compatibility -->
<field name='name' type='SFString' accessType='initializeOnly'
 appinfo='Extrusion name'/>
<field name='crossSection' type='MFVec2f' value='1 1 1 -1 -1 -1 -1 1 1 1' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='spine' type='MFVec3f' value='0 0 0 0 1 0' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='scale' type='MFVec2f' value='1 1' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='orientation' type='MFRotation' value='0 0 1 0' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='beginCap' type='SFBool' value='false' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='endCap' type='SFBool' value='false' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='ccw' type='SFBool' value='true' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='convex' type='SFBool' value='true' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='creaseAngle' type='SFFloat' value='0' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='solid' type='SFBool' value='true' accessType='initializeOnly'
 appinfo='Extrusion field'/>
<field name='spineColor' type='SFColor' value='0 0.9 0.8' accessType='inputOutput'
 appinfo='emissiveColor of spine'/>
<field name='crossSectionColor' type='SFColor' value='0.2 0.8 0.3' accessType='inputOutput'
 appinfo='diffuseColor of crossSection'/>
<field name='crossSectionTransparency' type='SFFloat' value='0.2' accessType='inputOutput'
 appinfo='transparency of crossSection'/>
<field name='extrusionColor' type='SFColor' value='0.3 0.3 0.3' accessType='inputOutput'
 appinfo='diffuseColor of extrusion hull'/>
<field name='extrusionTransparency' type='SFFloat' value='0.7' accessType='inputOutput'
 appinfo='transparency of extrusion hull'/>
<field name='extrusionImageTexture' type='SFNode' accessType='initializeOnly'
 appinfo='Image to apply to Extrusion'>
<!-- initialization node (if any) goes here -->
</field>
<field name='extrusionTextureTransform' type='SFNode' accessType='initializeOnly'
 appinfo='TextureTransform coordinates of image applied to Extrusion'>
<!-- initialization node (if any) goes here -->
</field>
<field name='set_crossSection' type='MFVec2f' accessType='inputOnly'
 appinfo='Extrusion field'/>
<field name='set_spine' type='MFVec3f' accessType='inputOnly'
 appinfo='Extrusion field'/>
<field name='set_scale' type='MFVec2f' accessType='inputOnly'
 appinfo='Extrusion field'/>
<field name='set_orientation' type='MFRotation' accessType='inputOnly'
 appinfo='Extrusion field'/>
<field name='traceEnabled' type='SFBool' value='false' accessType='initializeOnly'
 appinfo='Whether to provide initialization trace statements showing node construction'/>
</ProtoInterface>
<ProtoBody>
<Group>
<Shape DEF='Spine'>
<!-- ROUTE information for SpineLine node:  [from CrossSectionScript.spineIndex to set_coordIndex ] -->
 <IndexedLineSet DEF='SpineLine' colorPerVertex='false'>
<Coordinate DEF='SpineCoordinates'>
<IS>
<connect nodeField='point' protoField='spine'/>
<connect nodeField='set_point' protoField='set_spine'/>
</IS>
</Coordinate>
</IndexedLineSet>
<Appearance>
<Material DEF='SpineMaterial'>
<IS>
<connect nodeField='emissiveColor' protoField='spineColor'/>
</IS>
</Material>
</Appearance>
</Shape>
<Shape DEF='InternalCrossSections'>
<!-- use most conservative polygon settings for reliable rendering: convex='false' solid='false' -->
<!-- ROUTE information for CrossSectionFaces node:  [from CrossSectionScript.facesIndex to set_coordIndex ] -->
 <IndexedFaceSet DEF='CrossSectionFaces' convex='false' solid='false'>
<!-- ROUTE information for CrossSectionFacesCoordinates node:  [from CrossSectionScript.facePoints to point ] -->
 <Coordinate DEF='CrossSectionFacesCoordinates'/>
</IndexedFaceSet>
<Appearance>
<Material DEF='CrossSectionMaterial'>
<IS>
<connect nodeField='diffuseColor' protoField='crossSectionColor'/>
<connect nodeField='transparency' protoField='crossSectionTransparency'/>
</IS>
</Material>
</Appearance>
</Shape>
<Shape DEF='ExternalExtrusion'>
<!-- use most conservative polygon settings: convex='false' solid='false' -->
<Extrusion DEF='EnclosingExtrusion' convex='false' solid='false'>
<IS>
<connect nodeField='crossSection' protoField='crossSection'/>
<connect nodeField='spine' protoField='spine'/>
<connect nodeField='scale' protoField='scale'/>
<connect nodeField='orientation' protoField='orientation'/>
<connect nodeField='set_crossSection' protoField='set_crossSection'/>
<connect nodeField='set_spine' protoField='set_spine'/>
<connect nodeField='set_scale' protoField='set_scale'/>
<connect nodeField='set_orientation' protoField='set_orientation'/>
<connect nodeField='beginCap' protoField='beginCap'/>
<connect nodeField='endCap' protoField='endCap'/>
<connect nodeField='ccw' protoField='ccw'/>
<connect nodeField='convex' protoField='convex'/>
<connect nodeField='creaseAngle' protoField='creaseAngle'/>
<connect nodeField='solid' protoField='solid'/>
</IS>
</Extrusion>
<Appearance DEF='ExtrusionAppearance'>
<IS>
<connect nodeField='texture' protoField='extrusionImageTexture'/>
<connect nodeField='textureTransform' protoField='extrusionTextureTransform'/>
</IS>
<Material DEF='ExtrusionMaterial'>
<IS>
<connect nodeField='diffuseColor' protoField='extrusionColor'/>
<connect nodeField='transparency' protoField='extrusionTransparency'/>
</IS>
</Material>
</Appearance>
</Shape>
</Group>
<!-- ROUTE information for CrossSectionScript node:  [from spineIndex to SpineLine.set_coordIndex ] [from facesIndex to CrossSectionFaces.set_coordIndex ] [from facePoints to CrossSectionFacesCoordinates.point ] -->
 <Script DEF='CrossSectionScript'
  url=' "ExtrusionCrossSectionPrototype.js" "https://X3dGraphics.com/examples/X3dForWebAuthors/Chapter06GeometryPointsLinesPolygons/ExtrusionCrossSectionPrototype.js" '>
<!-- local variables -->
<field name='name' type='SFString' accessType='initializeOnly'/>
<field name='crossSection' type='MFVec2f' accessType='initializeOnly'/>
<field name='spine' type='MFVec3f' accessType='initializeOnly'/>
<field name='scale' type='MFVec2f' accessType='initializeOnly'/>
<field name='orientation' type='MFRotation' accessType='initializeOnly'/>
<field name='spineColor' type='SFColor' accessType='inputOutput'/>
<field name='crossSectionColor' type='SFColor' accessType='inputOutput'/>
<field name='crossSectionTransparency' type='SFFloat' accessType='inputOutput'/>
<field name='extrusionColor' type='SFColor' accessType='inputOutput'/>
<field name='extrusionTransparency' type='SFFloat' accessType='inputOutput'/>
<field name='set_crossSection' type='MFVec2f' accessType='inputOnly'/>
<field name='set_spine' type='MFVec3f' accessType='inputOnly'/>
<field name='set_scale' type='MFVec2f' accessType='inputOnly'/>
<field name='set_orientation' type='MFRotation' accessType='inputOnly'/>
<field name='spineIndex' type='MFInt32' accessType='outputOnly'/>
<field name='facesIndex' type='MFInt32' accessType='outputOnly'/>
<field name='facePoints' type='MFVec3f' accessType='outputOnly'/>
<field name='traceEnabled' type='SFBool' accessType='initializeOnly'/>
<field name='computedFacesIndex' type='MFInt32' accessType='initializeOnly'/>
<field name='computedFacePoints' type='MFVec3f' accessType='initializeOnly'/>
<IS>
<connect nodeField='name' protoField='name'/>
<connect nodeField='crossSection' protoField='crossSection'/>
<connect nodeField='spine' protoField='spine'/>
<connect nodeField='scale' protoField='scale'/>
<connect nodeField='spineColor' protoField='spineColor'/>
<connect nodeField='crossSectionColor' protoField='crossSectionColor'/>
<connect nodeField='crossSectionTransparency' protoField='crossSectionTransparency'/>
<connect nodeField='extrusionColor' protoField='extrusionColor'/>
<connect nodeField='extrusionTransparency' protoField='extrusionTransparency'/>
<connect nodeField='orientation' protoField='orientation'/>
<connect nodeField='set_crossSection' protoField='set_crossSection'/>
<connect nodeField='set_spine' protoField='set_spine'/>
<connect nodeField='set_scale' protoField='set_scale'/>
<connect nodeField='set_orientation' protoField='set_orientation'/>
<connect nodeField='traceEnabled' protoField='traceEnabled'/>
</IS>
</Script>
<ROUTE fromNode='CrossSectionScript' fromField='spineIndex' toNode='SpineLine' toField='set_coordIndex'/>
<ROUTE fromNode='CrossSectionScript' fromField='facesIndex' toNode='CrossSectionFaces' toField='set_coordIndex'/>
<ROUTE fromNode='CrossSectionScript' fromField='facePoints' toNode='CrossSectionFacesCoordinates' toField='point'/>
</ProtoBody>
</ProtoDeclare>
<!-- ==================== -->
<!-- Example instance adapted from Figure15.12Torus.x3d -->
<!-- https://www.web3d.org/x3d/content/examples/Basic/Vrml2Sourcebook/Chapter15-Extrusion/Figure15.12Torus.x3d -->
<!-- Redirection text in case a user examines this PROTO file via a 3D browser: -->
<Group>
<Transform translation='0 1.5 0'>
<Shape>
<Appearance>
<Material diffuseColor='0 1 1' emissiveColor='0 1 1'/>
</Appearance>
<Text string='"ExtrusionCrossSectionPrototype" "is a Prototype definition scene." "" "Example scenes using this node:"'>
<FontStyle justify='"MIDDLE" "MIDDLE"' size='0.9'/>
</Text>
</Shape>
</Transform>
<Transform translation='0 -0.8 0'>
<Anchor description='Touch text for ExtrusionPentagon example' parameter='"target=_blank"'
  url=' "ExtrusionPentagon.x3d" "https://X3dGraphics.com/examples/X3dForWebAuthors/Chapter06GeometryPointsLinesPolygons/ExtrusionPentagon.x3d" "ExtrusionPentagon.wrl" "https://X3dGraphics.com/examples/X3dForWebAuthors/Chapter06GeometryPointsLinesPolygons/ExtrusionPentagon.wrl" '>
<Shape>
<Appearance>
<Material diffuseColor='0 1 0.341176' transparency='0.2'/>
</Appearance>
<Text string='"Pentagon"'>
<FontStyle DEF='FontCenter' justify='"MIDDLE" "MIDDLE"' size='1.2' style='BOLD'/>
</Text>
</Shape>
<Shape>
<Box size='3 1 0.01'/>
<Appearance DEF='TransparentAppearance'>
<Material transparency='1'/>
</Appearance>
</Shape>
</Anchor>
</Transform>
<Transform translation='-2.5 -2 0'>
<Anchor description='Touch text for Torus example' parameter='"target=_blank"'
  url=' "../../Basic/course/ExtrusionCrossSectionExampleTorus.x3d" "https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionExampleTorus.x3d" "../../Basic/course/ExtrusionCrossSectionExampleTorus.wrl" "https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionExampleTorus.wrl" '>
<Shape>
<Appearance>
<Material diffuseColor='1 0 1' transparency='0.2'/>
</Appearance>
<Text string='"Torus"'>
<FontStyle USE='FontCenter'/>
</Text>
</Shape>
<Shape>
<Box size='3 1 0.01'/>
<Appearance USE='TransparentAppearance'/>
</Shape>
</Anchor>
</Transform>
<Transform translation='2.5 -2 0'>
<Anchor description='Touch text for Ship example' parameter='"target=_blank"'
  url=' "../../Basic/course/ExtrusionCrossSectionExampleShip.x3d" "https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionExampleShip.x3d" "../../Basic/course/ExtrusionCrossSectionExampleShip.wrl" "https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionExampleShip.wrl" '>
<Shape>
<Appearance>
<Material diffuseColor='0.7 0.7 0.7' transparency='0.2'/>
</Appearance>
<Text string='"Ship"'>
<FontStyle USE='FontCenter'/>
</Text>
</Shape>
<Shape>
<Box size='2 1 0.01'/>
<Appearance USE='TransparentAppearance'/>
</Shape>
</Anchor>
</Transform>
</Group>
</Scene>
</X3D>
<!--
Index for ProtoDeclare definition : ExtrusionCrossSection
Index for DEF nodes : CrossSectionFaces, CrossSectionFacesCoordinates, CrossSectionMaterial, CrossSectionScript, EnclosingExtrusion, ExternalExtrusion, ExtrusionAppearance, ExtrusionMaterial, FontCenter, InternalCrossSections, Spine, SpineCoordinates, SpineLine, SpineMaterial, TransparentAppearance
-->

<!-- Color key: <X3dNode DEF='idName' field='value'/> matches <XmlElement DEF='idName' attribute='value'/>
(Light blue background: behavior node) (Grey background: inserted documentation) (Magenta background: X3D Extensibility)
    <Prototype name='ProtoName'> <field name='fieldName'/> </Prototype> -->

<!-- For additional help information about X3D scenes, please see X3D Tooltips, X3D Resources and X3D Scene Authoring Hints. -->