Render a single, Text2D object
/*
* @(#)Text2DApp.java 1.1 00/09/22 14:03
*
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import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.Frame;
import java.awt.GraphicsConfiguration;
import javax.media.j3d.Alpha;
import javax.media.j3d.Appearance;
import javax.media.j3d.Background;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Color3f;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.Text2D;
import com.sun.j3d.utils.universe.SimpleUniverse;
/*
* Text2DApp renders a single, Text2D object. The Text2D object spins revealing
* that the backside does not render by default. The code to make the Text2D
* object double-sided is commented out in this program.
*/
public class Text2DApp extends Applet {
public BranchGroup createSceneGraph() {
// Create the root of the branch graph
BranchGroup objRoot = new BranchGroup();
// Create the transform group node and initialize it to the
// identity. Add it to the root of the subgraph.
TransformGroup objSpin = new TransformGroup();
objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objRoot.addChild(objSpin);
// Create a simple Text2D leaf node, add it to the scene graph.
Text2D text2d = new Text2D("2D text in Java 3D", new Color3f(0.9f,
1.0f, 1.0f), "Helvetica", 24, Font.ITALIC);
objSpin.addChild(text2d);
Appearance textAppear = text2d.getAppearance();
// The following 4 lines of code (commented out) make the Text2D object
// 2-sided.
// This code depends on the line of code above that sets TextAppear.
// PolygonAttributes polyAttrib = new PolygonAttributes();
// polyAttrib.setCullFace(PolygonAttributes.CULL_NONE);
// polyAttrib.setBackFaceNormalFlip(true);
// textAppear.setPolygonAttributes(polyAttrib);
// The following 12 lines of code (commented out) use the texture from
// the previous Text2D object on another object.
// This code depends on the line of code above that sets TextAppear.
// QuadArray qa = new QuadArray(4, QuadArray.COORDINATES |
// QuadArray.TEXTURE_COORDINATE_2);
// qa.setCoordinate(0, new Point3f(-10.0f, 1.0f, -5.0f));
// qa.setCoordinate(1, new Point3f(-10.0f, -1.0f, -5.0f));
// qa.setCoordinate(2, new Point3f(10.0f, -1.0f, -5.0f));
// qa.setCoordinate(3, new Point3f(10.0f, 1.0f, -5.0f));
// qa.setTextureCoordinate(0, new Point2f(0.0f, 1.0f));
// qa.setTextureCoordinate(1, new Point2f(0.0f, 0.0f));
// qa.setTextureCoordinate(2, new Point2f(1.0f, 0.0f));
// qa.setTextureCoordinate(3, new Point2f(1.0f, 1.0f));
//
// objRoot.addChild(new Shape3D(qa, textAppear));
// Create a new Behavior object that will perform the desired
// operation on the specified transform object and add it into
// the scene graph.
Alpha rotationAlpha = new Alpha(-1, 8000);
RotationInterpolator rotator = new RotationInterpolator(rotationAlpha,
objSpin);
// a bounding sphere specifies a region a behavior is active
// create a sphere centered at the origin with radius of 100
BoundingSphere bounds = new BoundingSphere();
rotator.setSchedulingBounds(bounds);
objSpin.addChild(rotator);
Background backg = new Background();
backg.setColor(0.4f, 0.4f, 1.0f);
backg.setApplicationBounds(new BoundingSphere());
objRoot.addChild(backg);
return objRoot;
} // end of CreateSceneGraph method
public Text2DApp() {
setLayout(new BorderLayout());
GraphicsConfiguration config = SimpleUniverse
.getPreferredConfiguration();
Canvas3D canvas3D = new Canvas3D(config);
canvas3D.setStereoEnable(false);
add("Center", canvas3D);
BranchGroup scene = createSceneGraph();
// SimpleUniverse is a Convenience Utility class
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
simpleU.getViewingPlatform().setNominalViewingTransform();
simpleU.addBranchGraph(scene);
} // end of Text2DApp (constructor)
// The following allows this to be run as an application
// as well as an applet
public static void main(String[] args) {
System.out
.println("Text2DApp.java - a demonstration of Text2D in Java 3D");
System.out.println("The scene is of a rotating Text2D object.");
System.out
.print("If you don't have a 3D card, it may take a few seconds ");
System.out.println("before you see anything.");
System.out.println("The Java 3D Tutorial is available on the web at:");
System.out
.println("http://java.sun.com/products/java-media/3D/collateral");
Frame frame = new MainFrame(new Text2DApp(), 256, 32);
} // end of main (method of Text2DApp)
} // end of class Text2DApp
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