Oriented Pt Test
/*
* @(#)OrientedPtTest.java 1.10 02/10/21 13:47:48
*
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import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Font;
import javax.media.j3d.AmbientLight;
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.DirectionalLight;
import javax.media.j3d.Font3D;
import javax.media.j3d.FontExtrusion;
import javax.media.j3d.Material;
import javax.media.j3d.OrientedShape3D;
import javax.media.j3d.Text3D;
import javax.media.j3d.TextureAttributes;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Point3f;
import javax.vecmath.Vector3d;
import javax.vecmath.Vector3f;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.behaviors.vp.OrbitBehavior;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.geometry.Cone;
import com.sun.j3d.utils.geometry.Cylinder;
import com.sun.j3d.utils.geometry.Sphere;
import com.sun.j3d.utils.image.TextureLoader;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.j3d.utils.universe.ViewingPlatform;
public class OrientedPtTest extends Applet {
// setup font stuff
private String fontName = "TestFont";
private String textString = "OrientedShape3D";
float sl = textString.length();
// paths to texture image files
private java.net.URL earthImage = null;
private java.net.URL stoneImage = null;
private SimpleUniverse u;
public BranchGroup createSceneGraph() {
// Create the root of the branch graph
BranchGroup objRoot = new BranchGroup();
TransformGroup objScale = new TransformGroup();
Transform3D textMat = new Transform3D();
// Assuming uniform size chars, set scale to fit string in view
textMat.setScale(1.2 / sl);
objScale.setTransform(textMat);
// Create the transform group node and initialize it to the
// identity. Enable the TRANSFORM_WRITE capability so that
// our behavior code can modify it at runtime. Add it to the
// root of the subgraph.
TransformGroup objTrans = new TransformGroup();
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
objRoot.addChild(objTrans);
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
100.0);
Appearance apText = new Appearance();
Material m = new Material();
m.setLightingEnable(true);
apText.setMaterial(m);
Appearance apEarth = new Appearance();
Material mm = new Material();
mm.setLightingEnable(true);
apEarth.setMaterial(mm);
Appearance apStone = new Appearance();
apStone.setMaterial(mm);
// create 3D text
Font3D f3d = new Font3D(new Font(fontName, Font.PLAIN, 2),
new FontExtrusion());
Point3f textPt = new Point3f(-sl / 2.0f, 3.0f, 0.0f);
Text3D txt = new Text3D(f3d, textString, textPt);
OrientedShape3D textShape = new OrientedShape3D();
textShape.setGeometry(txt);
textShape.setAppearance(apText);
textShape.setAlignmentMode(OrientedShape3D.ROTATE_ABOUT_POINT);
// text is centered around 0, 3, 0. Make it rotate around 0,5,0
Point3f rotationPt = new Point3f(0.0f, 5.0f, 0.0f);
textShape.setRotationPoint(rotationPt);
objScale.addChild(textShape);
// also add a small Sphere at the rotation point to
// show that we are rotating around the right point
Sphere sphere = new Sphere(0.2f);
TransformGroup sphereGroup = new TransformGroup();
Transform3D sphereXform = new Transform3D();
sphereXform.set(new Vector3f(rotationPt));
sphereGroup.setTransform(sphereXform);
sphereGroup.addChild(sphere);
objScale.addChild(sphereGroup);
// Create a simple shape leaf node, add it to the scene graph.
Transform3D cubeMat = new Transform3D();
TransformGroup cubeTrans = new TransformGroup(cubeMat);
cubeMat.set(new Vector3d(0.9, 0.0, -1.0));
cubeTrans.setTransform(cubeMat);
cubeTrans.addChild(new ColorCube(0.3));
objTrans.addChild(cubeTrans);
TextureLoader stoneTex = new TextureLoader(stoneImage,
new String("RGB"), this);
if (stoneTex != null)
apStone.setTexture(stoneTex.getTexture());
TextureAttributes texAttr = new TextureAttributes();
texAttr.setTextureMode(TextureAttributes.REPLACE);
apStone.setTextureAttributes(texAttr);
Transform3D coneMat = new Transform3D();
TransformGroup coneTrans = new TransformGroup(coneMat);
coneMat.set(new Vector3d(0.0, 0.0, 0.0));
coneTrans.setTransform(coneMat);
coneTrans.addChild(new Cone(.2f, 0.8f, Cone.GENERATE_NORMALS
| Cone.GENERATE_TEXTURE_COORDS, apStone));
objTrans.addChild(coneTrans);
TextureLoader earthTex = new TextureLoader(earthImage,
new String("RGB"), this);
if (earthTex != null)
apEarth.setTexture(earthTex.getTexture());
apEarth.setTextureAttributes(texAttr);
Transform3D cylinderMat = new Transform3D();
TransformGroup cylinderTrans = new TransformGroup(cylinderMat);
cylinderMat.set(new Vector3d(-0.9, 0.5, -1.0));
cylinderTrans.setTransform(cylinderMat);
cylinderTrans.addChild(new Cylinder(.35f, 2.0f,
Cylinder.GENERATE_NORMALS | Cylinder.GENERATE_TEXTURE_COORDS,
apEarth));
objTrans.addChild(cylinderTrans);
objTrans.addChild(objScale);
// Set up the background
Color3f bgColor = new Color3f(0.05f, 0.05f, 0.5f);
Background bgNode = new Background(bgColor);
bgNode.setApplicationBounds(bounds);
objRoot.addChild(bgNode);
// Set up the ambient light
Color3f ambientColor = new Color3f(0.1f, 0.1f, 0.1f);
AmbientLight ambientLightNode = new AmbientLight(ambientColor);
ambientLightNode.setInfluencingBounds(bounds);
objRoot.addChild(ambientLightNode);
// Set up the directional lights
Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f);
Vector3f light1Direction = new Vector3f(1.0f, 1.0f, 1.0f);
Color3f light2Color = new Color3f(1.0f, 1.0f, 0.9f);
Vector3f light2Direction = new Vector3f(-1.0f, -1.0f, -1.0f);
DirectionalLight light1 = new DirectionalLight(light1Color,
light1Direction);
light1.setInfluencingBounds(bounds);
objRoot.addChild(light1);
DirectionalLight light2 = new DirectionalLight(light2Color,
light2Direction);
light2.setInfluencingBounds(bounds);
objRoot.addChild(light2);
apText.setMaterial(mm);
// Have Java 3D perform optimizations on this scene graph.
objRoot.compile();
return objRoot;
}
public OrientedPtTest() {
}
public OrientedPtTest(java.net.URL earthURL, java.net.URL stoneURL) {
earthImage = earthURL;
stoneImage = stoneURL;
}
public void init() {
// the paths to the image files for an applet
if (earthImage == null) {
try {
earthImage = new java.net.URL(getCodeBase().toString()
+ "/earth.jpg");
} catch (java.net.MalformedURLException ex) {
System.out.println(ex.getMessage());
System.exit(1);
}
}
if (stoneImage == null) {
try {
stoneImage = new java.net.URL(getCodeBase().toString()
+ "/stone.jpg");
} catch (java.net.MalformedURLException ex) {
System.out.println(ex.getMessage());
System.exit(1);
}
}
setLayout(new BorderLayout());
Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
add("Center", c);
// Create a simple scene and attach it to the virtual universe
BranchGroup scene = createSceneGraph();
u = new SimpleUniverse(c);
// add mouse behaviors to the ViewingPlatform
ViewingPlatform viewingPlatform = u.getViewingPlatform();
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
u.getViewingPlatform().setNominalViewingTransform();
// add orbit behavior to the viewing platform
OrbitBehavior orbit = new OrbitBehavior(c, OrbitBehavior.REVERSE_ALL);
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
100.0);
orbit.setSchedulingBounds(bounds);
viewingPlatform.setViewPlatformBehavior(orbit);
u.addBranchGraph(scene);
}
public void destroy() {
u.cleanup();
}
//
// The following allows OrientedPtTest to be run as an application
// as well as an applet
//
public static void main(String[] args) {
java.net.URL earthURL = null;
java.net.URL stoneURL = null;
try {
// the paths to the image files for an application
earthURL = new java.net.URL("file:earth.jpg");
stoneURL = new java.net.URL("file:stone.jpg");
} catch (java.net.MalformedURLException ex) {
System.out.println(ex.getMessage());
System.exit(1);
}
new MainFrame(new OrientedPtTest(earthURL, stoneURL), 400, 400);
}
}
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