<?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 content='ExtrusionRoomWalls.x3d' name='title'/>
    <meta content='Wall definition for a room, defined as a cross section and extruded vertically.' name='description'/>
    <meta content='Don Brutzman' name='creator'/>
    <meta content='U.S. Naval Postgraduate School (NPS)' name='contributor'/>
    <meta content='3 September 2005' name='created'/>
    <meta content='20 January 2024' name='modified'/>
    <meta content='Extrusion example' name='subject'/>
    <meta content='https://en.wikipedia.org/wiki/Extrusion' name='reference'/>
    <meta content='https://www.web3d.org/x3d/content/examples/X3dForWebAuthors/Chapter06GeometryPointsLinesPolygons/ExtrusionRoomWalls.x3d' name='identifier'/>
    <meta content='X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit' name='generator'/>
    <meta content='../license.html' name='license'/>
  </head>
  <Scene>
    <WorldInfo title='ExtrusionRoomWalls.x3d'/>
    <Viewpoint description='Extrusion Room Walls' orientation='1 0 0 -0.2' position='5 4 15'/>
    <Viewpoint description='Oblique view from above' orientation='1 0 0 -0.78' position='5 10 13'/>
    <Viewpoint description='Overhead view' orientation='1 0 0 -1.57' position='5 12 3'/>
    <Background skyColor='1 1 1'/>
    <Transform>
      <Shape>
        <!-- be sure to order cross-section points so that normal is upward -->
        <Extrusion convex='false' crossSection='0 0 0 6 3 6 3 5 1 5 1 1 9 1 9 5 5 5 5 6 10 6 10 0 0 0' spine='0 0 0 0 2.5 0'>
          <!-- spine is open, crossSection is closed -->
        </Extrusion>
        <Appearance>
          <Material diffuseColor='0.8 0.8 0.3'/>
        </Appearance>
      </Shape>
    </Transform>
  </Scene>
</X3D>