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<!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.1//EN"   "http://www.web3d.org/specifications/x3d-3.1.dtd">
<X3D profile='Immersive' version='3.1' xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' xsd:noNamespaceSchemaLocation=' http://www.web3d.org/specifications/x3d-3.1.xsd '>
<head>
<meta name='title' content='ElevationGridNonPlanarQuadrilaterals.x3d'/>
<meta name='description' content='Show how a single nonplanar quadrilateral can be tesselated in 2 different ways.'/>
<meta name='creator' content='Don Brutzman'/>
<meta name='organization' content='Naval Postgraduate School'/>
<meta name='created' content='28 August 2005'/>
<meta name='modified' content='31 August 2005'/>
<meta name='warning' content='under development'/>
<meta name='identifier' content=' http://X3dGraphics.com/examples/X3dForWebAuthors/Chapter06-GeometryPointsLinesPolygons/ElevationGridNonPlanarQuadrilaterals.x3d '/>
<meta name='generator' content='X3D-Edit, https://savage.nps.edu/X3D-Edit'/>
<meta name='license' content='../license.html'/>
</head>
<!--
Index for ExternProtoDeclare definition: WhereAmI
Index for DEF nodes: CenterFS, CommonFigureElements, DefaultElevationGrid, DefaultView, DiffuseRedAppearance, ExamineMode, ExampleElevationGridShape, FigureElevationGridBack, FigureElevationGridFront, FigureIfsCenterDiagonal, FigureIfsCrossDiagonal, FigureLabelBrowserElevationGrid, FigureLabelCenterDiagonalTesselation, FigureLabelCrossDiagonalTesselation, FloorShape, FlyPanNavigation, LabelAppearance, PointLabels, QuadCenterDiagonalLineShape, QuadCrossDiagonalLineShape, QuadOutlineShape, QuadrilateralPoints, QuadVerticalLineShape, TransparentGreyAppearance, White
Index for Viewpoint images: Viewpoint_1, DefaultView, Viewpoint_3, Viewpoint_4, Viewpoint_5, Viewpoint_6
-->
<Scene>
<ExternProtoDeclare name='WhereAmI'
  url=' "WhereAmI.x3d#WhereAmI" "WhereAmI.wrl#WhereAmI" '/>
<ProtoInstance name='WhereAmI' containerField='children'/>
<NavigationInfo DEF='ExamineMode' type='"EXAMINE" "ANY"' transitionType='"ANIMATE"' transitionTime='1.0'/>
<!-- FlyPanNavigation ROUTE:  [from DefaultView.isBound to set_bind ] -->
<NavigationInfo DEF='FlyPanNavigation' type='"FLY" "ANY"' transitionType='"ANIMATE"' transitionTime='1.0'/>
<Background skyColor='1 1 1'/>
<Viewpoint description='Book View' orientation='0 1 0 0.01' position='0.13 0.2 7.71'/>
<!-- DefaultView ROUTE:  [from isBound to FlyPanNavigation.set_bind ] -->
<Viewpoint DEF='DefaultView' description='ElevationGrid tesselation examples' position='0 0.2 10'/>
<ROUTE fromNode='DefaultView' fromField='isBound' toNode='FlyPanNavigation' toField='set_bind'/>
<Transform translation='0 -0.75 0'>
<Transform DEF='FigureElevationGridBack' translation='-4 0 0'>
<!-- Note that the base of each piece of polygonal geometry is based at (1 0 1) -->
<Viewpoint description='Default brower ElevationGrid tesselation, front view' position='1.5 0.4 4'/>
<Transform center='1 0 1' rotation='0 1 0 3.2'>
<Group DEF='DefaultElevationGrid'>
<Shape DEF='ExampleElevationGridShape'>
<ElevationGrid solid='false' xDimension='2' zDimension='2' height='0 0.5 0 0'/>
<Appearance DEF='DiffuseRedAppearance'>
<Material diffuseColor='0.9 0.1 0.1' transparency='0.1'/>
</Appearance>
</Shape>
<Transform DEF='FigureLabelBrowserElevationGrid' translation='0.5 1 0.5'>
<Billboard>
<Shape>
<Text string='"Browser" "ElevationGrid"' solid='true'>
<FontStyle DEF='CenterFS' justify='"MIDDLE" "MIDDLE"' size='0.25'/>
</Text>
<Appearance DEF='LabelAppearance'>
<Material diffuseColor='0.2 0.1 0.8'/>
</Appearance>
</Shape>
</Billboard>
</Transform>
<Group DEF='CommonFigureElements'>
<Shape DEF='QuadOutlineShape'>
<IndexedLineSet colorPerVertex='false' colorIndex='0 0 0 0' coordIndex='0 1 3 2 0 -1'>
<!-- first iterate on x-axis, then z-xis -->
<Coordinate DEF='QuadrilateralPoints' point='0 0 0 1 0.5 0 0 0 1 1 0 1 1 0 0'/>
<Color DEF='White' color='1 1 1'/>
</IndexedLineSet>
</Shape>
<Shape DEF='FloorShape'>
<!-- setting all height values to zero is a simple way to get a square outline. A more efficient way is to use an IndexedFaceSet. -->
<ElevationGrid solid='false' xDimension='2' zDimension='2' height='0 0 0 0'/>
<Appearance DEF='TransparentGreyAppearance'>
<Material diffuseColor='0 0 0' emissiveColor='1 1 1' transparency='0.8'/>
</Appearance>
</Shape>
<Transform DEF='PointLabels' translation='0 -0.2 0'>
<Billboard>
<Shape>
<Text string='h0' solid='true'>
<FontStyle USE='CenterFS'/>
</Text>
<Appearance USE='LabelAppearance'/>
</Shape>
</Billboard>
<Transform translation='1 0 0'>
<Billboard>
<Shape>
<Text string='h1' solid='true'>
<FontStyle USE='CenterFS'/>
</Text>
<Appearance USE='LabelAppearance'/>
</Shape>
</Billboard>
</Transform>
<Transform translation='0 0 1'>
<Billboard>
<Shape>
<Text string='h2' solid='true'>
<FontStyle USE='CenterFS'/>
</Text>
<Appearance USE='LabelAppearance'/>
</Shape>
</Billboard>
</Transform>
<Transform translation='1 0 1'>
<Billboard>
<Shape>
<Text string='h3' solid='true'>
<FontStyle USE='CenterFS'/>
</Text>
<Appearance USE='LabelAppearance'/>
</Shape>
</Billboard>
</Transform>
</Transform>
<Shape DEF='QuadVerticalLineShape'>
<IndexedLineSet colorPerVertex='false' colorIndex='0 0 0 0' coordIndex='1 4 -1'>
<Coordinate USE='QuadrilateralPoints'/>
<Color USE='White'/>
</IndexedLineSet>
</Shape>
</Group>
<Shape DEF='QuadCrossDiagonalLineShape'>
<IndexedLineSet colorPerVertex='false' colorIndex='0 0 0 0' coordIndex='2 1 -1'>
<Coordinate USE='QuadrilateralPoints'/>
<Color USE='White'/>
</IndexedLineSet>
</Shape>
<Shape DEF='QuadCenterDiagonalLineShape'>
<IndexedLineSet colorPerVertex='false' colorIndex='0 0 0 0' coordIndex='0 3 -1'>
<Coordinate USE='QuadrilateralPoints'/>
<Color USE='White'/>
</IndexedLineSet>
</Shape>
</Group>
</Transform>
</Transform>
<Transform DEF='FigureElevationGridFront' translation='-1 0 0'>
<Viewpoint description='Default brower ElevationGrid tesselation, back view' position='0.5 0.4 4'/>
<Transform center='1 0 1' rotation='0 1 0 0.8'>
<Group USE='DefaultElevationGrid'/>
</Transform>
</Transform>
<Transform DEF='FigureIfsCenterDiagonal' translation='1 0 0'>
<Viewpoint description='Center-diagonal tesselation' position='0.5 0.4 4'/>
<Transform center='1 0 1' rotation='0 1 0 0.4'>
<Shape>
<IndexedFaceSet coordIndex='0 3 1 -1 0 2 3 -1'>
<Coordinate USE='QuadrilateralPoints'/>
</IndexedFaceSet>
<Appearance USE='DiffuseRedAppearance'/>
</Shape>
<Transform DEF='FigureLabelCenterDiagonalTesselation' translation='0.5 1 0.5'>
<Billboard>
<Shape>
<Text string='"Center Diagonal" "Tesselation"' solid='true'>
<FontStyle USE='CenterFS'/>
</Text>
<Appearance USE='LabelAppearance'/>
</Shape>
</Billboard>
</Transform>
<Group USE='CommonFigureElements'/>
<Shape USE='QuadCenterDiagonalLineShape'/>
</Transform>
</Transform>
<Transform DEF='FigureIfsCrossDiagonal' translation='3 0 0'>
<Viewpoint description='Cross-diagonal tesselation' position='0.5 0.4 4'/>
<Transform center='1 0 1' rotation='0 1 0 0'>
<Shape>
<IndexedFaceSet coordIndex='0 2 1 -1 2 3 1 -1'>
<Coordinate USE='QuadrilateralPoints'/>
</IndexedFaceSet>
<Appearance USE='DiffuseRedAppearance'/>
</Shape>
<Transform DEF='FigureLabelCrossDiagonalTesselation' translation='0.5 1 0.5'>
<Billboard>
<Shape>
<Text string='"Cross Diagonal" "Tesselation"' solid='true'>
<FontStyle USE='CenterFS'/>
</Text>
<Appearance USE='LabelAppearance'/>
</Shape>
</Billboard>
</Transform>
<Group USE='CommonFigureElements'/>
<Shape USE='QuadCrossDiagonalLineShape'/>
</Transform>
</Transform>
</Transform>
</Scene>
</X3D>
<!--
Index for ExternProtoDeclare definition: WhereAmI
Index for DEF nodes: CenterFS, CommonFigureElements, DefaultElevationGrid, DefaultView, DiffuseRedAppearance, ExamineMode, ExampleElevationGridShape, FigureElevationGridBack, FigureElevationGridFront, FigureIfsCenterDiagonal, FigureIfsCrossDiagonal, FigureLabelBrowserElevationGrid, FigureLabelCenterDiagonalTesselation, FigureLabelCrossDiagonalTesselation, FloorShape, FlyPanNavigation, LabelAppearance, PointLabels, QuadCenterDiagonalLineShape, QuadCrossDiagonalLineShape, QuadOutlineShape, QuadrilateralPoints, QuadVerticalLineShape, TransparentGreyAppearance, White
Index for Viewpoint images: Viewpoint_1, DefaultView, Viewpoint_3, Viewpoint_4, Viewpoint_5, Viewpoint_6
-->

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