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

import org.web3d.x3d.jsail.Core.*;
import org.web3d.x3d.jsail.EnvironmentalSensor.*;
import org.web3d.x3d.jsail.fields.*;
import org.web3d.x3d.jsail.Grouping.*;
import org.web3d.x3d.jsail.Navigation.*;
import org.web3d.x3d.jsail.Networking.*;
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; ViewpointGroup contains Viewpoint and ViewpointGroup nodes, allowing nested lists and viewpoint scoping in viewpoint lists. This is a developmental example for potential specification improvement. It is needed because (a) currently specified rules for X3D/VRML node binding state that behavior of child Viewpoints beneath Switch/LOD/etc. is undefined, and (b) browser viewpoint list display behavior is undefined. &lt;/p&gt;
 &lt;p&gt; Related links: Catalog page &lt;a href="../../../development/ViewpointGroupPrototypeIndex.html" target="_blank"&gt;ViewpointGroupPrototype&lt;/a&gt;,  source &lt;a href="../../../development/ViewpointGroupPrototype.java"&gt;ViewpointGroupPrototype.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="../../../development/ViewpointGroupPrototype.x3d"&gt;ViewpointGroupPrototype.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; ViewpointGroup contains Viewpoint and ViewpointGroup nodes, allowing nested lists and viewpoint scoping in viewpoint lists. This is a developmental example for potential specification improvement. It is needed because (a) currently specified rules for X3D/VRML node binding state that behavior of child Viewpoints beneath Switch/LOD/etc. is undefined, and (b) browser viewpoint list display behavior is undefined. &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; 29 October 2003 &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; 20 October 2019 &lt;/td&gt;
		&lt;/tr&gt;
		&lt;tr style="color:burntorange"&gt;
			&lt;td style="text-align:right; vertical-align: text-top;"&gt; &lt;i&gt; warning &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; this prototype is for development purposes only, do not override native player support for ViewpointGroup &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="../../../development/ViewpointListViewpointGroupProse.html"&gt;ViewpointListViewpointGroupProse.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="../../../development/ViewpointGroupExample.x3d"&gt;ViewpointGroupExample.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="https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/components/navigation.html#Viewpoint" target="_blank"&gt;https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/components/navigation.html#Viewpoint&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="https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#Viewpoint" target="_blank"&gt;https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#Viewpoint&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; subject &lt;/i&gt; &lt;/td&gt;
			&lt;td&gt; ViewpointGroup Viewpoint &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/development/ViewpointGroupPrototype.x3d" target="_blank"&gt;https://www.web3d.org/x3d/content/examples/Basic/development/ViewpointGroupPrototype.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="../../../development/../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 ViewpointGroupPrototype
{
	/** Default constructor to create this object. */
	public ViewpointGroupPrototype ()
	{
	  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("ViewpointGroupPrototype.x3d"))
    .addMeta(new meta().setName(meta.NAME_DESCRIPTION).setContent("ViewpointGroup contains Viewpoint and ViewpointGroup nodes, allowing nested lists and viewpoint scoping in viewpoint lists. This is a developmental example for potential specification improvement. It is needed because (a) currently specified rules for X3D/VRML node binding state that behavior of child Viewpoints beneath Switch/LOD/etc. is undefined, and (b) browser viewpoint list display behavior is undefined."))
    .addMeta(new meta().setName(meta.NAME_CREATOR    ).setContent("Don Brutzman"))
    .addMeta(new meta().setName(meta.NAME_CREATED    ).setContent("29 October 2003"))
    .addMeta(new meta().setName(meta.NAME_MODIFIED   ).setContent("20 October 2019"))
    .addMeta(new meta().setName(meta.NAME_WARNING    ).setContent("this prototype is for development purposes only, do not override native player support for ViewpointGroup"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("ViewpointListViewpointGroupProse.html"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("ViewpointGroupExample.x3d"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("https://www.web3d.org/specifications/X3Dv4/ISO-IEC19775-1v4-IS/Part01/components/navigation.html#Viewpoint"))
    .addMeta(new meta().setName(meta.NAME_REFERENCE  ).setContent("https://www.web3d.org/technicalinfo/specifications/vrml97/part1/nodesRef.html#Viewpoint"))
    .addMeta(new meta().setName(meta.NAME_SUBJECT    ).setContent("ViewpointGroup Viewpoint"))
    .addMeta(new meta().setName(meta.NAME_IDENTIFIER ).setContent("https://www.web3d.org/x3d/content/examples/Basic/development/ViewpointGroupPrototype.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("ViewpointGroupPrototype.x3d"))
    .addChild(new ProtoDeclare("ViewpointGroup").setName("ViewpointGroup").setAppinfo("warning: developmental prototype for X3D v3.2 node do not override native support!")
      .setProtoInterface(new ProtoInterface()
        .addField(new field().setName("children").setType(field.TYPE_MFNODE).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setAppinfo("[Viewpoint | ViewpointGroup] only")
          .addComments(" initialized at runtime, default is empty array of Viewpoint/ViewpointGroup nodes. "))
        .addField(new field().setName("description").setType(field.TYPE_SFSTRING).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setAppinfo("Text description or navigation hint to be displayed for this ViewpointGroup."))
        .addField(new field().setName("displayed").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setValue(true).setAppinfo("Whether this ViewpointGroup description is displayed in current viewpoint list."))
        .addField(new field().setName("center").setType(field.TYPE_SFVEC3F).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setValue(new SFVec3f(0.0,0.0,0.0)).setAppinfo("Position offset from origin of local coordinate system."))
        .addField(new field().setName("radius").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(10).setAppinfo("[0..infinity) Radius in meters of Proximity box within which the ViewpointGroup is usable and displayed on the viewpoint list."))
        .addField(new field().setName("set_radius").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INPUTONLY).setAppinfo("[0..infinity) Radius in meters of Proximity box within which the ViewpointGroup is usable and displayed on the viewpoint list."))
        .addField(new field().setName("retainUserOffsets").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INPUTOUTPUT).setValue(true).setAppinfo("Whether viewpoint needs to retain (true) or rezero (false) any prior user navigation offsets from defined viewpoint position orientation.")))
      .setProtoBody(new ProtoBody()
        .addChild(new Group()
          .addChild(new ProximitySensor("ProximityZone").setSize(20.0,20.0,20.0)
            .setIS(new IS()
              .addConnect(new connect().setNodeField("center").setProtoField("center"))))
          .addChild(new Switch("ViewpointsSwitch").setWhichChoice(0)
            .addChild(new Group()
              .setIS(new IS()
                .addConnect(new connect().setNodeField("children").setProtoField("children")))))
          .addChild(new Switch("HoldExposedFields").setWhichChoice(-1)
            .addComments(" WorldInfo not used because title field is accessType initializeOnly ")
            .addChild(new Anchor("DescriptionHolder")
              .setIS(new IS()
                .addConnect(new connect().setNodeField("description").setProtoField("description"))))
            .addChild(new ProximitySensor("DisplayedHolder")
              .setIS(new IS()
                .addConnect(new connect().setNodeField("enabled").setProtoField("displayed")))))
          .addChild(new Script("UnbindingControlScript").setDirectOutput(true).setSourceCode("""
ecmascript:

function initialize ()
{
	// since Viewpoints remain on binding stack as before,
	// no initialization action is necessary when implemented natively.
	description = descriptionHolder.description;
	displayed = displayedHolder.enabled;
	tracePrint ('displayed=' + displayed);
	if (!displayed) viewpointsSwitch.whichChoice = -1;
	set_radius (radius);

	// typecheck valid children nodes:
	tracePrint ('viewpointsSwitch.choice.length=' + viewpointsSwitch.choice.length);
	if (viewpointsSwitch.choice.length &gt;= 1)
		for (i=0; i &gt;= viewpointsSwitch.choice.length; i)
		{
			// how to check type?
			// if (viewpointsSwitch.choice[i].____ etc.)
			// once type checked, warn if Viewpoint position outside proximity box size
		}
	tracePrint ('... initialize() complete');
}
function isActive (activeValue)
{
	// Most likely, viewpoint list actions will be controlled by browser.

	// If viewpoint list is exposed via SAI, could do things here
	// such as setting ViewpointGroup.description as browser label.

	// Current action:  switch child Viewpoints in/out of scope.
	tracePrint ('activeValue=' + activeValue);

	tracePrint ('displayed=' + displayed);
	if (!displayed) return;

	if (activeValue) viewpointsSwitch.whichChoice =  0;
	else             viewpointsSwitch.whichChoice = -1;

	tracePrint ('viewpointsSwitch.whichChoice=' + viewpointsSwitch.whichChoice);
}
function set_radius (value, timestamp)
{
	radius = value;
	ProximityZone.size.x = 2 * radius;
	ProximityZone.size.y = 2 * radius;
	ProximityZone.size.z = 2 * radius;
	tracePrint ('set_radius (' + value + '), radius=' + radius + ', ProximityZone.size=' + ProximityZone.size);
}

function tracePrint(outputString)
{
	if (traceEnabled) Browser.println ('[ViewpointGroup' + description + ']' + outputString);
}
function alwaysPrint(outputString)
{
	Browser.println ('[ViewpointGroup' + description + ']' + outputString);
}
""")
            .addField(new field().setName("isActive").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INPUTONLY))
            .addField(new field().setName("ProximityZone").setType(field.TYPE_SFNODE).setAccessType(field.ACCESSTYPE_INITIALIZEONLY)
              .addChild(new ProximitySensor().setUSE("ProximityZone")))
            .addField(new field().setName("radius").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setAppinfo("[0..infinity) Radius in meters of Proximity box within which the ViewpointGroup is usable and displayed on the viewpoint list."))
            .addField(new field().setName("set_radius").setType(field.TYPE_SFFLOAT).setAccessType(field.ACCESSTYPE_INPUTONLY).setAppinfo("[0..infinity) Radius in meters of Proximity box within which the ViewpointGroup is usable and displayed on the viewpoint list."))
            .addField(new field().setName("viewpointsSwitch").setType(field.TYPE_SFNODE).setAccessType(field.ACCESSTYPE_INITIALIZEONLY)
              .addChild(new Switch().setUSE("ViewpointsSwitch")))
            .addComments(" use node holders to work around VRML 97 Script exposedField restriction ")
            .addField(new field().setName("descriptionHolder").setType(field.TYPE_SFNODE).setAccessType(field.ACCESSTYPE_INITIALIZEONLY)
              .addChild(new Anchor().setUSE("DescriptionHolder")))
            .addField(new field().setName("displayedHolder").setType(field.TYPE_SFNODE).setAccessType(field.ACCESSTYPE_INITIALIZEONLY)
              .addChild(new ProximitySensor().setUSE("DisplayedHolder")))
            .addField(new field().setName("description").setType(field.TYPE_SFSTRING).setAccessType(field.ACCESSTYPE_INITIALIZEONLY))
            .addField(new field().setName("displayed").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(true))
            .addField(new field().setName("traceEnabled").setType(field.TYPE_SFBOOL).setAccessType(field.ACCESSTYPE_INITIALIZEONLY).setValue(false))
            .setIS(new IS()
              .addConnect(new connect().setNodeField("radius").setProtoField("radius"))
              .addConnect(new connect().setNodeField("set_radius").setProtoField("set_radius"))))
          .addChild(new ROUTE().setFromNode("ProximityZone").setFromField("isActive").setToNode("UnbindingControlScript").setToField("isActive")))))
    .addComments(" ===============Example============== ")
    .addChild(new NavigationInfo().setType("\"FLY\" \"ANY\""))
    .addChild(new Anchor().setDescription("ViewpointGroupExample").setParameter(new String[] {"target=_blank"}).setUrl(new String[] {"ViewpointGroupExample.x3d","https://www.web3d.org/x3d/content/examples/Basic/development/ViewpointGroupExample.x3d","ViewpointGroupExample.wrl","https://www.web3d.org/x3d/content/examples/Basic/development/ViewpointGroupExample.wrl"})
      .addChild(new Shape()
        .setGeometry(new Text().setString(new String[] {"ViewpointGroupPrototype","defines a prototype","","Click on this text to see","ViewpointGroupExample scene"})
          .setFontStyle(new FontStyle().setJustify(FontStyle.JUSTIFY_MIDDLE_MIDDLE).setSize(0.5)))
        .setAppearance(new Appearance()
          .setMaterial(new Material().setDiffuseColor(1.0,1.0,0.2)))))
    .addChild(new Viewpoint().setDescription("inside scope: ViewpointGroup").setPosition(0.0,0.0,5.0))
    .addChild(new Viewpoint().setDescription("outside scope: ViewpointGroup").setPosition(0.0,0.0,12.0)));
            }
            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 ViewpointGroupPrototype 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 ViewpointGroupPrototype().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.development.ViewpointGroupPrototype\" 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.development.ViewpointGroupPrototype self-validation test confirmation: ");
                if (!validationResults.equals("success"))
                    System.out.println();
                System.out.println(validationResults.trim());

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