<html><head><meta name="color-scheme" content="light dark"></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">package Vrml2Sourcebook.Chapter31Prototypes;

import org.web3d.x3d.jsail.Core.*;
import org.web3d.x3d.jsail.fields.*;
import org.web3d.x3d.jsail.Grouping.*;
import org.web3d.x3d.jsail.Interpolation.*;
import org.web3d.x3d.jsail.Navigation.*;
import org.web3d.x3d.jsail.PointingDeviceSensor.*;
import org.web3d.x3d.jsail.Shape.*;
import org.web3d.x3d.jsail.Texturing.*;
import org.web3d.x3d.jsail.Time.*;

// Javadoc metadata annotations follow, see below for X3DJSAIL Java source code.
/**
 * &lt;p&gt; A donut shape built using prototypes: the Donut geometry node and the LightOak appearance node. Also see Figures 30.5 and 31.6 for comparison. &lt;/p&gt;
 &lt;p&gt; Related links: Catalog page &lt;a href="../../../Chapter31Prototypes/Figure31_7DonutExternalPrototypeIndex.html" target="_blank"&gt;Figure31_7DonutExternalPrototype&lt;/a&gt;,  source &lt;a href="../../../Chapter31Prototypes/Figure31_7DonutExternalPrototype.java"&gt;Figure31_7DonutExternalPrototype.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="../../../Chapter31Prototypes/Figure31_7DonutExternalPrototype.x3d"&gt;Figure31_7DonutExternalPrototype.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; Figure 31.7, The VRML 2.0 Sourcebook, Copyright [1997] By Andrea L. Ames, David R. Nadeau, and John L. Moreland &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.wiley.com/legacy/compbooks/vrml2sbk/ch31/31fig07.htm" target="_blank"&gt;http://www.wiley.com/legacy/compbooks/vrml2sbk/ch31/31fig07.htm&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; translator &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; 16 December 2023 &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; A donut shape built using prototypes: the Donut geometry node and the LightOak appearance node. Also see Figures 30.5 and 31.6 for comparison. &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/Vrml2Sourcebook/Chapter31Prototypes/Figure31_7DonutExternalPrototype.x3d" target="_blank"&gt;https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter31Prototypes/Figure31_7DonutExternalPrototype.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 3.3, &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="../../../Chapter31Prototypes/../../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 Figure 31.7, The VRML 2.0 Sourcebook, Copyright [1997] By Andrea L. Ames, David R. Nadeau, and John L. Moreland
 */

public class Figure31_7DonutExternalPrototype
{
	/** Default constructor to create this object. */
	public Figure31_7DonutExternalPrototype ()
	{
	  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("Figure31_7DonutExternalPrototype.x3d"))
    .addMeta(new meta().setName(meta.NAME_CREATOR    ).setContent("Figure 31.7, The VRML 2.0 Sourcebook, Copyright [1997] By Andrea L. Ames, David R. Nadeau, and John L. Moreland"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("http://www.wiley.com/legacy/compbooks/vrml2sbk/ch31/31fig07.htm"))
    .addMeta(new meta().setName(meta.NAME_TRANSLATOR ).setContent("Don Brutzman"))
    .addMeta(new meta().setName(meta.NAME_CREATED    ).setContent("22 November 2000"))
    .addMeta(new meta().setName(meta.NAME_MODIFIED   ).setContent("16 December 2023"))
    .addMeta(new meta().setName(meta.NAME_DESCRIPTION).setContent("A donut shape built using prototypes: the Donut geometry node and the LightOak appearance node. Also see Figures 30.5 and 31.6 for comparison."))
    .addMeta(new meta().setName(meta.NAME_IDENTIFIER ).setContent("https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter31Prototypes/Figure31_7DonutExternalPrototype.x3d"))
    .addMeta(new meta().setName(meta.NAME_GENERATOR  ).setContent("X3D-Edit 3.3, https://savage.nps.edu/X3D-Edit"))
    .addMeta(new meta().setName(meta.NAME_LICENSE    ).setContent("../../license.html")))
  .setScene(new Scene()
    .addChild(new WorldInfo().setTitle("Figure31_7DonutExternalPrototype.x3d"))
    .addChild(new ExternProtoDeclare("Donut").setName("Donut").setUrl(new String[] {"Figure31_6DonutPrototype.wrl#Donut","https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter31Prototypes/Figure31_6DonutPrototype.wrl#Donut","Figure31_6DonutPrototype.x3d#Donut","https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter31Prototypes/Figure31_6DonutPrototype.x3d#Donut"})
      .addField(new field().setName("crossSectionRadius").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
      .addField(new field().setName("spineRadius").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
      .addField(new field().setName("crossSectionResolution").setType(field.TYPE_SFINT32).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
      .addField(new field().setName("spineResolution").setType(field.TYPE_SFINT32).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
      .addField(new field().setName("set_crossSectionRadius").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INPUTONLY))
      .addField(new field().setName("set_spineRadius").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INPUTONLY)))
    .addChild(new ExternProtoDeclare("LightOak").setName("LightOak").setUrl(new String[] {"Figure31_4WoodAppearancePrototypesLibrary.wrl#LightOak","https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter31Prototypes/Figure31_4WoodAppearancePrototypesLibrary.wrl#LightOak","Figure31_4WoodAppearancePrototypesLibrary.x3d#LightOak","https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter31Prototypes/Figure31_4WoodAppearancePrototypesLibrary.x3d#LightOak"})
      .addField(new field().setName("textureTransform").setType(field.TYPE_SFNODE).setAccessType(field.ACCESSTYPE_INPUTOUTPUT)))
    .addChild(new Viewpoint().setDescription("Click to pick a size").setOrientation(1.0,0.0,0.0,-0.52).setPosition(0.0,7.0,12.0))
    .addComments(" Donut instances from prototypes ")
    .addChild(new Transform().setTranslation(0.0,2.0,0.0)
      .addChild(new Shape()
        .setGeometry(new ProtoInstance("Donut").setContainerField("geometry")
          .addFieldValue(new fieldValue().setName("crossSectionRadius").setValue(1))
          .addFieldValue(new fieldValue().setName("spineRadius").setValue(2)))
        .setAppearance(new ProtoInstance("LightOak").setContainerField("appearance")
          .addFieldValue(new fieldValue().setName("textureTransform")
            .addChild(new TextureTransform().setCenter(-0.0,5.0).setRotation(0.758).setScale(2.0,0.5).setTranslation(0.5,0.0))))))
    .addComments(" Hmmm, what size donut do you really want? ")
    .addChild(new TimeSensor("Clock").setCycleInterval(10).setLoop(true))
    .addChild(new ScalarInterpolator("DonutThickness").setKey(new double[] {0.0,0.4,0.5,0.9,1.0}).setKeyValue(new double[] {0.75,1.25,1.25,0.75,0.75}))
    .addChild(new Transform().setTranslation(0.0,-2.0,0.0)
      .addChild(new Shape()
        .setGeometry(new ProtoInstance("Donut", "SpecialtyOfTheHouse").setContainerField("geometry")
          .addFieldValue(new fieldValue().setName("crossSectionRadius").setValue(0.5))
          .addFieldValue(new fieldValue().setName("spineRadius").setValue(2)))
        .setAppearance(new Appearance()
          .setTexture(new ImageTexture().setUrl(new String[] {"../Chapter17Textures/icing.jpg","https://www.web3d.org/x3d/content/examples/Vrml2Sourcebook/Chapter17Textures/icing.jpg"}))))
      .addChild(new TouchSensor("StopSizeChanges").setDescription("touch to stop size changes")))
    .addChild(new ROUTE().setFromNode("Clock").setFromField("fraction_changed").setToNode("DonutThickness").setToField("set_fraction"))
    .addChild(new ROUTE().setFromNode("DonutThickness").setFromField("value_changed").setToNode("SpecialtyOfTheHouse").setToField("crossSectionRadius"))
    .addChild(new ROUTE().setFromNode("StopSizeChanges").setFromField("touchTime").setToNode("Clock").setToField("stopTime")));
            }
            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 Figure31_7DonutExternalPrototype 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 Figure31_7DonutExternalPrototype().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: \"Vrml2Sourcebook.Chapter31Prototypes.Figure31_7DonutExternalPrototype\" 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("Vrml2Sourcebook.Chapter31Prototypes.Figure31_7DonutExternalPrototype self-validation test confirmation: ");
                if (!validationResults.equals("success"))
                    System.out.println();
                System.out.println(validationResults.trim());

                // experimental: test X3DJSAIL output files
                // Chapter31Prototypes/Figure31_7DonutExternalPrototype_JavaExport.* file validation is checked when building X3D Example Archives
                String filenameX3D  = "Chapter31Prototypes/Figure31_7DonutExternalPrototype_JavaExport.x3d"; 
                String filenameX3DV = "Chapter31Prototypes/Figure31_7DonutExternalPrototype_JavaExport.x3dv"; 
                String filenameJSON = "Chapter31Prototypes/Figure31_7DonutExternalPrototype_JavaExport.json";
                thisExampleX3dModel.toFileX3D        (filenameX3D);
                thisExampleX3dModel.toFileClassicVRML(filenameX3DV);
// TODO         thisExampleX3dModel.toFileJSON       (filenameJSON);
        }
    }
}
</pre></body></html>