<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">package Basic.course;

import org.web3d.x3d.jsail.Core.*;
import org.web3d.x3d.jsail.fields.*;
import org.web3d.x3d.jsail.Geometry3D.*;
import org.web3d.x3d.jsail.Grouping.*;
import org.web3d.x3d.jsail.Networking.*;
import org.web3d.x3d.jsail.Rendering.*;
import org.web3d.x3d.jsail.Scripting.*;
import org.web3d.x3d.jsail.Shape.*;
import org.web3d.x3d.jsail.Text.*;

// Javadoc metadata annotations follow, see below for X3DJSAIL Java source code.
/**
 * &lt;p&gt; Shape prototype for Extrusion node that also draws spine line plus oriented, scaled cross sections at each spine point. &lt;/p&gt;
 &lt;p&gt; Related links: Catalog page &lt;a href="../../../course/ExtrusionCrossSectionPrototypeIndex.html" target="_blank"&gt;ExtrusionCrossSectionPrototype&lt;/a&gt;,  source &lt;a href="../../../course/ExtrusionCrossSectionPrototype.java"&gt;ExtrusionCrossSectionPrototype.java&lt;/a&gt;, &lt;a href="https://www.web3d.org/x3d/content/examples/X3dResources.html" target="_blank"&gt;X3D Resources&lt;/a&gt;, &lt;a href="https://www.web3d.org/x3d/content/examples/X3dSceneAuthoringHints.html" target="_blank"&gt;X3D Scene Authoring Hints&lt;/a&gt;, and &lt;a href="https://www.web3d.org/x3d/content/X3dTooltips.html" target="_blank"&gt;X3D Tooltips&lt;/a&gt;. &lt;/p&gt;
	&lt;table style="color:black; border:0px solid; border-spacing:10px 0px;"&gt;
        &lt;caption&gt;Scene Meta Information&lt;/caption&gt;
		&lt;tr style="background-color:silver; border-color:silver;"&gt;
			&lt;td style="text-align:center; padding:10px 0px;"&gt;&lt;i&gt;meta tags&lt;/i&gt;&lt;/td&gt;
			&lt;td style="text-align:left;   padding:10px 0px;"&gt;&amp;nbsp; Document Metadata &lt;/td&gt;
		&lt;/tr&gt;

		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; title &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="../../../course/ExtrusionCrossSectionPrototype.x3d"&gt;ExtrusionCrossSectionPrototype.x3d&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; creator &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; Don Brutzman &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; created &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; 22 November 2000 &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; modified &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; 12 October 2023 &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="../../../course/ExtrusionExampleShip.x3d"&gt;ExtrusionExampleShip.x3d&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="../../../course/ExtrusionCrossSectionExampleShip.x3d"&gt;ExtrusionCrossSectionExampleShip.x3d&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="../../../course/ExtrusionCrossSectionExampleTorus.x3d"&gt;ExtrusionCrossSectionExampleTorus.x3d&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; description &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; Shape prototype for Extrusion node that also draws spine line plus oriented, scaled cross sections at each spine point. &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; hint &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; Utilize ExtrusionCrossSection ProtoInstance as if it is a Shape node (with containerField="children") rather than an Extrusion node (with containerField="geometry") under a Shape. &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; VRML 97 Specification, 6.18 Extrusion &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#Extrusion" target="_blank"&gt;https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#Extrusion&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; Image &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; VRML 97 Specification, Figure 6.6 &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; Image &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="https://www.web3d.org/technicalinfo/specifications/vrml97/Images/Extrusion.gif" target="_blank"&gt;https://www.web3d.org/technicalinfo/specifications/vrml97/Images/Extrusion.gif&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="http://realism.com/x3d/examples/Extrusion/_frame.html" target="_blank"&gt;http://realism.com/x3d/examples/Extrusion/_frame.html&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="http://www.cs.brown.edu/~gss/vrml/drawpoly.html" target="_blank"&gt;http://www.cs.brown.edu/~gss/vrml/drawpoly.html&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="../../../course/ExtrusionXj3dGoldberg1999.java"&gt;ExtrusionXj3dGoldberg1999.java&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; reference &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="http://web3d.metrolink.com/cgi-bin/cvsweb.cgi/x3d/src/com/sun/j3d/loaders/vrml97/impl/Attic/Extrusion.java" target="_blank"&gt;http://web3d.metrolink.com/cgi-bin/cvsweb.cgi/x3d/src/com/sun/j3d/loaders/vrml97/impl/Attic/Extrusion.java&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; identifier &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionPrototype.x3d" target="_blank"&gt;https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionPrototype.x3d&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; generator &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; X3D-Edit 4.0, &lt;a href="https://savage.nps.edu/X3D-Edit" target="_blank"&gt;https://savage.nps.edu/X3D-Edit&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; license &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; &lt;a href="../../../course/../license.html"&gt;../license.html&lt;/a&gt; &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr style="background-color:silver; border-color:silver;"&gt;
			&lt;td style="text-align:center;" colspan="2"&gt;  &amp;nbsp; &lt;/td&gt;
		&lt;/tr&gt;
	&lt;/table&gt;

	&lt;p&gt;
		This program uses the
		&lt;a href="https://www.web3d.org/specifications/java/X3DJSAIL.html" target="_blank"&gt;X3D Java Scene Access Interface Library (X3DJSAIL)&lt;/a&gt;.
		It has been produced using the 
		&lt;a href="https://www.web3d.org/x3d/stylesheets/X3dToJava.xslt" target="_blank"&gt;X3dToJava.xslt&lt;/a&gt;
		stylesheet
	       (&lt;a href="https://sourceforge.net/p/x3d/code/HEAD/tree/www.web3d.org/x3d/stylesheets/X3dToJava.xslt" target="_blank"&gt;version control&lt;/a&gt;)
                which is used to create Java source code from an original &lt;code&gt;.x3d&lt;/code&gt; model.
	&lt;/p&gt;

	* @author Don Brutzman
 */

public class ExtrusionCrossSectionPrototype
{
	/** Default constructor to create this object. */
	public ExtrusionCrossSectionPrototype ()
	{
	  initialize();
	}

	/** Create and initialize the X3D model for this object. */
	public final void initialize()
	{
            try { // catch-all
  x3dModel = new X3D().setProfile(X3D.PROFILE_IMMERSIVE).setVersion(X3D.VERSION_3_0)
  .setHead(new head()
    .addMeta(new meta().setName(meta.NAME_TITLE      ).setContent("ExtrusionCrossSectionPrototype.x3d"))
    .addMeta(new meta().setName(meta.NAME_CREATOR    ).setContent("Don Brutzman"))
    .addMeta(new meta().setName(meta.NAME_CREATED    ).setContent("22 November 2000"))
    .addMeta(new meta().setName(meta.NAME_MODIFIED   ).setContent("12 October 2023"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("ExtrusionExampleShip.x3d"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("ExtrusionCrossSectionExampleShip.x3d"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("ExtrusionCrossSectionExampleTorus.x3d"))
    .addMeta(new meta().setName(meta.NAME_DESCRIPTION).setContent("Shape prototype for Extrusion node that also draws spine line plus oriented, scaled cross sections at each spine point."))
    .addMeta(new meta().setName(meta.NAME_HINT       ).setContent("Utilize ExtrusionCrossSection ProtoInstance as if it is a Shape node (with containerField=\"children\") rather than an Extrusion node (with containerField=\"geometry\") under a Shape."))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("VRML 97 Specification, 6.18 Extrusion"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#Extrusion"))
    .addMeta(new meta().setName(meta.NAME_IMAGE      ).setContent("VRML 97 Specification, Figure 6.6"))
    .addMeta(new meta().setName(meta.NAME_IMAGE      ).setContent("https://www.web3d.org/technicalinfo/specifications/vrml97/Images/Extrusion.gif"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("http://realism.com/x3d/examples/Extrusion/_frame.html"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("http://www.cs.brown.edu/~gss/vrml/drawpoly.html"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("ExtrusionXj3dGoldberg1999.java"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("http://web3d.metrolink.com/cgi-bin/cvsweb.cgi/x3d/src/com/sun/j3d/loaders/vrml97/impl/Attic/Extrusion.java"))
    .addMeta(new meta().setName(meta.NAME_IDENTIFIER ).setContent("https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionPrototype.x3d"))
    .addMeta(new meta().setName(meta.NAME_GENERATOR  ).setContent("X3D-Edit 4.0, https://savage.nps.edu/X3D-Edit"))
    .addMeta(new meta().setName(meta.NAME_LICENSE    ).setContent("../license.html")))
  .setScene(new Scene()
    .addChild(new WorldInfo().setTitle("ExtrusionCrossSectionPrototype.x3d"))
    .addChild(new ProtoDeclare("ExtrusionCrossSection").setName("ExtrusionCrossSection").setAppinfo("Shape prototype for Extrusion node that also draws spine line plus oriented scaled cross sections at each spine point").setDocumentation("https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionPrototype.x3d")
      .setProtoInterface(new ProtoInterface()
        .addComments(" run-time eventIn Extrusion-modification interfaces for VRML97 compatibility ")
        .addField(new field().setName("name").setType(field.TYPE_SFSTRING).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setAppinfo("Extrusion name"))
        .addField(new field().setName("crossSection").setType(field.TYPE_MFVEC2F).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(new MFVec2f(new MFVec2f(new double[] {1.0,1.0,1.0,-1.0,-1.0,-1.0,-1.0,1.0,1.0,1.0}))).setAppinfo("Extrusion field"))
        .addField(new field().setName("spine").setType(field.TYPE_MFVEC3F).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(new MFVec3f(new MFVec3f(new double[] {0.0,0.0,0.0,0.0,1.0,0.0}))).setAppinfo("Extrusion field"))
        .addField(new field().setName("scale").setType(field.TYPE_MFVEC2F).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(new MFVec2f(new MFVec2f(new double[] {1.0,1.0}))).setAppinfo("Extrusion field"))
        .addField(new field().setName("orientation").setType(field.TYPE_MFROTATION).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(new MFRotation(new MFRotation(new double[] {0.0,0.0,1.0,0.0}))).setAppinfo("Extrusion field"))
        .addField(new field().setName("beginCap").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(false).setAppinfo("Extrusion field"))
        .addField(new field().setName("endCap").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(false).setAppinfo("Extrusion field"))
        .addField(new field().setName("ccw").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(true).setAppinfo("Extrusion field"))
        .addField(new field().setName("convex").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(true).setAppinfo("Extrusion field"))
        .addField(new field().setName("creaseAngle").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(0).setAppinfo("Extrusion field"))
        .addField(new field().setName("solid").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(true).setAppinfo("Extrusion field"))
        .addField(new field().setName("spineColor").setType(field.TYPE_SFCOLOR).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setValue(new SFColor(0.0,0.9,0.8)).setAppinfo("emissiveColor of spine"))
        .addField(new field().setName("crossSectionColor").setType(field.TYPE_SFCOLOR).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setValue(new SFColor(0.2,0.8,0.3)).setAppinfo("diffuseColor of crossSection"))
        .addField(new field().setName("crossSectionTransparency").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setValue(0.2).setAppinfo("transparency of crossSection"))
        .addField(new field().setName("extrusionColor").setType(field.TYPE_SFCOLOR).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setValue(new SFColor(0.3,0.3,0.3)).setAppinfo("diffuseColor of extrusion hull"))
        .addField(new field().setName("extrusionTransparency").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setValue(0.7).setAppinfo("transparency of extrusion hull"))
        .addField(new field().setName("extrusionImageTexture").setType(field.TYPE_SFNODE).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setAppinfo("Image to apply to Extrusion")
          .addComments(" initialization node (if any) goes here "))
        .addField(new field().setName("extrusionTextureTransform").setType(field.TYPE_SFNODE).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setAppinfo("TextureTransform coordinates of image applied to Extrusion")
          .addComments(" initialization node (if any) goes here "))
        .addField(new field().setName("set_crossSection").setType(field.TYPE_MFVEC2F).setAccessType(field.ACCESSTYPE_INPUTONLY).setAppinfo("Extrusion field"))
        .addField(new field().setName("set_spine").setType(field.TYPE_MFVEC3F).setAccessType(field.ACCESSTYPE_INPUTONLY).setAppinfo("Extrusion field"))
        .addField(new field().setName("set_scale").setType(field.TYPE_MFVEC2F).setAccessType(field.ACCESSTYPE_INPUTONLY).setAppinfo("Extrusion field"))
        .addField(new field().setName("set_orientation").setType(field.TYPE_MFROTATION).setAccessType(field.ACCESSTYPE_INPUTONLY).setAppinfo("Extrusion field"))
        .addField(new field().setName("traceEnabled").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(false).setAppinfo("Whether to provide initialization trace statements showing node construction")))
      .setProtoBody(new ProtoBody()
        .addChild(new Group()
          .addChild(new Shape("Spine")
            .setGeometry(new IndexedLineSet("SpineLine").setDEF("SpineLine").setColorPerVertex(false)
              .setCoord(new Coordinate("SpineCoordinates")
                .setIS(new IS()
                  .addConnect(new connect().setNodeField("point").setProtoField("spine"))
                  .addConnect(new connect().setNodeField("point").setProtoField("set_spine")))))
            .setAppearance(new Appearance()
              .setMaterial(new Material("SpineMaterial")
                .setIS(new IS()
                  .addConnect(new connect().setNodeField("emissiveColor").setProtoField("spineColor"))))))
          .addChild(new Shape("InternalCrossSections")
            .addComments(" use most conservative polygon settings for reliable rendering: convex='false' solid='false' ")
            .setGeometry(new IndexedFaceSet("CrossSectionFaces").setDEF("CrossSectionFaces").setConvex(false).setSolid(false)
              .setCoord(new Coordinate("CrossSectionFacesCoordinates")))
            .setAppearance(new Appearance()
              .setMaterial(new Material("CrossSectionMaterial")
                .setIS(new IS()
                  .addConnect(new connect().setNodeField("diffuseColor").setProtoField("crossSectionColor"))
                  .addConnect(new connect().setNodeField("transparency").setProtoField("crossSectionTransparency"))))))
          .addChild(new Shape("ExternalExtrusion")
            .addComments(" use most conservative polygon settings: convex='false' solid='false' ")
            .setGeometry(new Extrusion("EnclosingExtrusion").setConvex(false).setSolid(false)
              .setIS(new IS()
                .addConnect(new connect().setNodeField("crossSection").setProtoField("crossSection"))
                .addConnect(new connect().setNodeField("spine").setProtoField("spine"))
                .addConnect(new connect().setNodeField("scale").setProtoField("scale"))
                .addConnect(new connect().setNodeField("orientation").setProtoField("orientation"))
                .addConnect(new connect().setNodeField("set_crossSection").setProtoField("set_crossSection"))
                .addConnect(new connect().setNodeField("set_spine").setProtoField("set_spine"))
                .addConnect(new connect().setNodeField("set_scale").setProtoField("set_scale"))
                .addConnect(new connect().setNodeField("set_orientation").setProtoField("set_orientation"))
                .addConnect(new connect().setNodeField("beginCap").setProtoField("beginCap"))
                .addConnect(new connect().setNodeField("endCap").setProtoField("endCap"))
                .addConnect(new connect().setNodeField("ccw").setProtoField("ccw"))
                .addConnect(new connect().setNodeField("convex").setProtoField("convex"))
                .addConnect(new connect().setNodeField("creaseAngle").setProtoField("creaseAngle"))
                .addConnect(new connect().setNodeField("solid").setProtoField("solid"))))
            .setAppearance(new Appearance("ExtrusionAppearance")
              .setIS(new IS()
                .addConnect(new connect().setNodeField("texture").setProtoField("extrusionImageTexture"))
                .addConnect(new connect().setNodeField("textureTransform").setProtoField("extrusionTextureTransform")))
              .setMaterial(new Material("ExtrusionMaterial")
                .setIS(new IS()
                  .addConnect(new connect().setNodeField("diffuseColor").setProtoField("extrusionColor"))
                  .addConnect(new connect().setNodeField("transparency").setProtoField("extrusionTransparency")))))))
        .addComments(" TODO hardwired local Script path to workaround BS Contact bug ")
        .addChild(new Script("CrossSectionScript").setUrl(new String[] {"ExtrusionCrossSectionPrototype.js","https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionPrototype.js"})
          .addComments(" local variables ")
          .addField(new field().setName("name").setType(field.TYPE_SFSTRING).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
          .addField(new field().setName("crossSection").setType(field.TYPE_MFVEC2F).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
          .addField(new field().setName("spine").setType(field.TYPE_MFVEC3F).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
          .addField(new field().setName("scale").setType(field.TYPE_MFVEC2F).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
          .addField(new field().setName("orientation").setType(field.TYPE_MFROTATION).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
          .addField(new field().setName("spineColor").setType(field.TYPE_SFCOLOR).setAccessType(field.ACCESSTYPE_INPUTOUTPUT))
          .addField(new field().setName("crossSectionColor").setType(field.TYPE_SFCOLOR).setAccessType(field.ACCESSTYPE_INPUTOUTPUT))
          .addField(new field().setName("crossSectionTransparency").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INPUTOUTPUT))
          .addField(new field().setName("extrusionColor").setType(field.TYPE_SFCOLOR).setAccessType(field.ACCESSTYPE_INPUTOUTPUT))
          .addField(new field().setName("extrusionTransparency").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INPUTOUTPUT))
          .addField(new field().setName("set_crossSection").setType(field.TYPE_MFVEC2F).setAccessType(field.ACCESSTYPE_INPUTONLY))
          .addField(new field().setName("set_spine").setType(field.TYPE_MFVEC3F).setAccessType(field.ACCESSTYPE_INPUTONLY))
          .addField(new field().setName("set_scale").setType(field.TYPE_MFVEC2F).setAccessType(field.ACCESSTYPE_INPUTONLY))
          .addField(new field().setName("set_orientation").setType(field.TYPE_MFROTATION).setAccessType(field.ACCESSTYPE_INPUTONLY))
          .addField(new field().setName("spineIndex").setType(field.TYPE_MFINT32).setAccessType(field.ACCESSTYPE_OUTPUTONLY))
          .addField(new field().setName("facesIndex").setType(field.TYPE_MFINT32).setAccessType(field.ACCESSTYPE_OUTPUTONLY))
          .addField(new field().setName("facePoints").setType(field.TYPE_MFVEC3F).setAccessType(field.ACCESSTYPE_OUTPUTONLY))
          .addField(new field().setName("traceEnabled").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
          .addField(new field().setName("computedFacesIndex").setType(field.TYPE_MFINT32).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
          .addField(new field().setName("computedFacePoints").setType(field.TYPE_MFVEC3F).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
          .setIS(new IS()
            .addConnect(new connect().setNodeField("name").setProtoField("name"))
            .addConnect(new connect().setNodeField("crossSection").setProtoField("crossSection"))
            .addConnect(new connect().setNodeField("spine").setProtoField("spine"))
            .addConnect(new connect().setNodeField("scale").setProtoField("scale"))
            .addConnect(new connect().setNodeField("spineColor").setProtoField("spineColor"))
            .addConnect(new connect().setNodeField("crossSectionColor").setProtoField("crossSectionColor"))
            .addConnect(new connect().setNodeField("crossSectionTransparency").setProtoField("crossSectionTransparency"))
            .addConnect(new connect().setNodeField("extrusionColor").setProtoField("extrusionColor"))
            .addConnect(new connect().setNodeField("extrusionTransparency").setProtoField("extrusionTransparency"))
            .addConnect(new connect().setNodeField("orientation").setProtoField("orientation"))
            .addConnect(new connect().setNodeField("set_crossSection").setProtoField("set_crossSection"))
            .addConnect(new connect().setNodeField("set_spine").setProtoField("set_spine"))
            .addConnect(new connect().setNodeField("set_scale").setProtoField("set_scale"))
            .addConnect(new connect().setNodeField("set_orientation").setProtoField("set_orientation"))
            .addConnect(new connect().setNodeField("traceEnabled").setProtoField("traceEnabled"))))
        .addChild(new ROUTE().setFromNode("CrossSectionScript").setFromField("spineIndex").setToNode("SpineLine").setToField("set_coordIndex"))
        .addChild(new ROUTE().setFromNode("CrossSectionScript").setFromField("facesIndex").setToNode("CrossSectionFaces").setToField("set_coordIndex"))
        .addChild(new ROUTE().setFromNode("CrossSectionScript").setFromField("facePoints").setToNode("CrossSectionFacesCoordinates").setToField("point"))))
    .addComments(" ==================== ")
    .addComments(" Example instance adapted from Figure15.12Torus.x3d ")
    .addComments(" https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter15-Extrusion/Figure15.12Torus.x3d ")
    .addComments(" Redirection text in case a user examines this PROTO file via a 3D browser: ")
    .addChild(new Group()
      .addChild(new Transform().setTranslation(0.0,1.5,0.0)
        .addChild(new Shape()
          .setAppearance(new Appearance()
            .setMaterial(new Material().setDiffuseColor(0.0,1.0,1.0).setEmissiveColor(0.0,1.0,1.0)))
          .setGeometry(new Text().setString(new String[] {"ExtrusionCrossSectionPrototype","is a Prototype definition scene","","Example scenes using this node:"})
            .setFontStyle(new FontStyle().setJustify(FontStyle.JUSTIFY_MIDDLE_MIDDLE).setSize(0.9)))))
      .addChild(new Transform().setTranslation(-2.5,-2.0,0.0)
        .addChild(new Anchor().setDescription("Touch text for Torus example").setParameter(new String[] {"target=_blank"}).setUrl(new String[] {"ExtrusionCrossSectionExampleTorus.x3d","https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionExampleTorus.x3d","ExtrusionCrossSectionExampleTorus.wrl","https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionExampleTorus.wrl"})
          .addChild(new Shape()
            .setAppearance(new Appearance()
              .setMaterial(new Material().setDiffuseColor(1.0,0.0,1.0).setTransparency(0.2)))
            .setGeometry(new Text().setString(new String[] {"Torus"})
              .setFontStyle(new FontStyle("FontCenter").setJustify(FontStyle.JUSTIFY_MIDDLE_MIDDLE).setSize(1.2).setCssStyle("BOLD"))))
          .addChild(new Shape()
            .setGeometry(new Box().setSize(3.0,1.0,0.01))
            .setAppearance(new Appearance("TransparentAppearance")
              .setMaterial(new Material().setTransparency(1))))))
      .addChild(new Transform().setTranslation(2.5,-2.0,0.0)
        .addChild(new Anchor().setDescription("Touch text for Ship example").setParameter(new String[] {"target=_blank"}).setUrl(new String[] {"ExtrusionCrossSectionExampleShip.x3d","https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionExampleShip.x3d","ExtrusionCrossSectionExampleShip.wrl","https://www.web3d.org/x3d/content/examples/Basic/course/ExtrusionCrossSectionExampleShip.wrl"})
          .addChild(new Shape()
            .setAppearance(new Appearance()
              .setMaterial(new Material().setDiffuseColor(0.7,0.7,0.7).setTransparency(0.2)))
            .setGeometry(new Text().setString(new String[] {"Ship"})
              .setFontStyle(new FontStyle().setUSE("FontCenter"))))
          .addChild(new Shape()
            .setGeometry(new Box().setSize(2.0,1.0,0.01))
            .setAppearance(new Appearance().setUSE("TransparentAppearance")))))));
            }
            catch (Exception ex)
            {       
                System.err.println ("*** Further hints on X3DJSAIL errors and exceptions at");
                System.err.println ("*** https://www.web3d.org/specifications/java/X3DJSAIL.html");
                throw (ex);
            }
	}
	// end of initialize() method

	/** The initialized model object, created within initialize() method. */
	private X3D x3dModel;

	/** 
	 * Provide a 
	 * &lt;a href="https://dzone.com/articles/java-copy-shallow-vs-deep-in-which-you-will-swim" target="_blank"&gt;shallow copy&lt;/a&gt;
	 * of the X3D model.
	 * @see &lt;a href="https://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/Core/X3D.html"&gt;X3D&lt;/a&gt;
	 * @return ExtrusionCrossSectionPrototype model
	 */
	public X3D getX3dModel()
	{	  
		return x3dModel;
	}
	   
    /** 
     * Default main() method provided for test purposes, uses CommandLine to set global ConfigurationProperties for this object.
     * @param args array of input parameters, provided as arguments
     * @see &lt;a href="https://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/Core/X3D.html#handleArguments-java.lang.String:A-"&gt;X3D.handleArguments(args)&lt;/a&gt;
     * @see &lt;a href="https://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/Core/X3D.html#validationReport--"&gt;X3D.validationReport()&lt;/a&gt;
     * @see &lt;a href="https://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/CommandLine.html"&gt;CommandLine&lt;/a&gt;
     * @see &lt;a href="https://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/CommandLine.html#USAGE"&gt;CommandLine.USAGE&lt;/a&gt;
     * @see &lt;a href="https://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/ConfigurationProperties.html"&gt;ConfigurationProperties&lt;/a&gt;
     */
    public static void main(String args[])
    {
        System.out.println("Build this X3D model, showing validation diagnostics...");
        X3D thisExampleX3dModel = new ExtrusionCrossSectionPrototype().getX3dModel();
//      System.out.println("X3D model construction complete.");
	
        // next handle command line arguments
        boolean hasArguments = (args != null) &amp;&amp; (args.length &gt; 0);
        boolean validate = true; // default
        boolean argumentsLoadNewModel = false;
        String  fileName = new String();

        if (args != null)
        {
                for (String arg : args)
                {
                        if (arg.toLowerCase().startsWith("-v") || arg.toLowerCase().contains("validate"))
                        {
                                validate = true; // making sure
                        }
                        if (arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_X3D) ||
                                arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_CLASSICVRML) ||
                                arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_X3DB) ||
                                arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_VRML97) ||
                                arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_EXI) ||
                                arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_GZIP) ||
                                arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_ZIP) ||
                                arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_HTML) ||
                                arg.toLowerCase().endsWith(X3D.FILE_EXTENSION_XHTML))
                        {
                                argumentsLoadNewModel = true;
                                fileName = arg;
                        }
                }
        }
        if      (argumentsLoadNewModel)
                System.out.println("WARNING: \"Basic.course.ExtrusionCrossSectionPrototype\" model invocation is attempting to load file \"" + fileName + "\" instead of simply validating itself... file loading ignored.");
        else if (hasArguments) // if no arguments provided, this method produces usage warning
                thisExampleX3dModel.handleArguments(args);
	
        if (validate)
        {
            //  System.out.println("--- TODO fix duplicated outputs ---"); // omit when duplicated outputs problem is solved/refactored
		String validationResults = thisExampleX3dModel.validationReport();
            //  System.out.println("-----------------------------------"); // omit when duplicated outputs problem is solved/refactored
                System.out.print("Basic.course.ExtrusionCrossSectionPrototype self-validation test confirmation: ");
                if (!validationResults.equals("success"))
                    System.out.println();
                System.out.println(validationResults.trim());

                // experimental: test X3DJSAIL output files
                // course/ExtrusionCrossSectionPrototype_JavaExport.* file validation is checked when building X3D Example Archives
                String filenameX3D  = "course/ExtrusionCrossSectionPrototype_JavaExport.x3d"; 
                String filenameX3DV = "course/ExtrusionCrossSectionPrototype_JavaExport.x3dv"; 
                String filenameJSON = "course/ExtrusionCrossSectionPrototype_JavaExport.json";
                thisExampleX3dModel.toFileX3D        (filenameX3D);
                thisExampleX3dModel.toFileClassicVRML(filenameX3DV);
// TODO         thisExampleX3dModel.toFileJSON       (filenameJSON);
        }
    }
}
</pre></body></html>