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Text 3D Geometry
/*
* @(#)PickText3DGeometry.java 1.14 02/10/21 13:49:47
*
* Copyright (c) 1996-2002 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
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* this list of conditions and the following disclaimer.
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* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of Sun Microsystems, Inc. or the names of contributors may
* be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
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*/
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.GraphicsConfiguration;
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.ColoringAttributes;
import javax.media.j3d.Font3D;
import javax.media.j3d.FontExtrusion;
import javax.media.j3d.Geometry;
import javax.media.j3d.Light;
import javax.media.j3d.Material;
import javax.media.j3d.PointLight;
import javax.media.j3d.Shape3D;
import javax.media.j3d.Text3D;
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 com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.Sphere;
import com.sun.j3d.utils.picking.PickTool;
import com.sun.j3d.utils.picking.behaviors.PickRotateBehavior;
import com.sun.j3d.utils.picking.behaviors.PickTranslateBehavior;
import com.sun.j3d.utils.picking.behaviors.PickZoomBehavior;
import com.sun.j3d.utils.universe.SimpleUniverse;
public class PickText3DGeometry extends Applet {
private SimpleUniverse u = null;
public BranchGroup createSceneGraph(Canvas3D canvas) {
Color3f eColor = new Color3f(0.0f, 0.0f, 0.0f);
Color3f sColor = new Color3f(1.0f, 1.0f, 1.0f);
Color3f objColor = new Color3f(0.6f, 0.6f, 0.6f);
Color3f lColor1 = new Color3f(1.0f, 0.0f, 0.0f);
Color3f lColor2 = new Color3f(0.0f, 1.0f, 0.0f);
Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f);
Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f);
Transform3D t;
// Create the root of the branch graph
BranchGroup objRoot = new BranchGroup();
// Create a Transformgroup to scale all objects so they
// appear in the scene.
TransformGroup objScale = new TransformGroup();
Transform3D t3d = new Transform3D();
t3d.setScale(0.4);
objScale.setTransform(t3d);
objRoot.addChild(objScale);
// Create a bounds for the background and lights
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0),
100.0);
// Set up the background
Background bg = new Background(bgColor);
bg.setApplicationBounds(bounds);
objScale.addChild(bg);
Material m = new Material(objColor, eColor, objColor, sColor, 100.0f);
Appearance a = new Appearance();
m.setLightingEnable(true);
a.setMaterial(m);
Font3D f3d = new Font3D(new Font("TestFont", Font.PLAIN, 1),
new FontExtrusion());
Text3D text3D = new Text3D(f3d, new String("TEXT3D"), new Point3f(
-2.0f, 0.7f, 0.0f));
text3D.setCapability(Geometry.ALLOW_INTERSECT);
Shape3D s3D1 = new Shape3D();
s3D1.setGeometry(text3D);
s3D1.setAppearance(a);
// Create a transform group node and initialize it to the
// identity. Enable the TRANSFORM_WRITE capability so that
// our behavior code can modify it at runtime.
TransformGroup spinTg1 = new TransformGroup();
spinTg1.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
spinTg1.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
spinTg1.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
spinTg1.addChild(s3D1);
objScale.addChild(spinTg1);
Text3D pick = new Text3D(f3d, new String("Pick me"), new Point3f(-2.0f,
-0.7f, 0.0f));
pick.setCapability(Geometry.ALLOW_INTERSECT);
Shape3D s3D2 = new Shape3D();
s3D2.setGeometry(pick);
s3D2.setAppearance(a);
// Create a transform group node and initialize it to the
// identity. Enable the TRANSFORM_WRITE capability so that
// our behavior code can modify it at runtime.
TransformGroup spinTg2 = new TransformGroup();
spinTg2.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
spinTg2.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
spinTg2.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
spinTg2.addChild(s3D2);
objScale.addChild(spinTg2);
// Create the transform group node for the each light and initialize
// it to the identity. Enable the TRANSFORM_WRITE capability so that
// our behavior code can modify it at runtime. Add them to the root
// of the subgraph.
// Create transformations for the positional lights
t = new Transform3D();
Vector3d lPos1 = new Vector3d(0.0, 0.0, 2.0);
t.set(lPos1);
TransformGroup l1Trans = new TransformGroup(t);
l1Trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
l1Trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
l1Trans.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
objScale.addChild(l1Trans);
t = new Transform3D();
Vector3d lPos2 = new Vector3d(0.5, 1.2, 2.0);
t.set(lPos2);
TransformGroup l2Trans = new TransformGroup(t);
l2Trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
l2Trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
l2Trans.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
objScale.addChild(l2Trans);
// Create Geometry for point lights
ColoringAttributes caL1 = new ColoringAttributes();
ColoringAttributes caL2 = new ColoringAttributes();
caL1.setColor(lColor1);
caL2.setColor(lColor2);
Appearance appL1 = new Appearance();
Appearance appL2 = new Appearance();
appL1.setColoringAttributes(caL1);
appL2.setColoringAttributes(caL2);
l1Trans.addChild(new Sphere(0.05f, Sphere.GENERATE_NORMALS
| Sphere.ENABLE_GEOMETRY_PICKING, 15, appL1));
l2Trans.addChild(new Sphere(0.05f, Sphere.GENERATE_NORMALS
| Sphere.ENABLE_GEOMETRY_PICKING, 15, appL2));
// Create lights
AmbientLight aLgt = new AmbientLight(alColor);
Light lgt1;
Light lgt2;
Point3f lPoint = new Point3f(0.0f, 0.0f, 0.0f);
Point3f atten = new Point3f(1.0f, 0.0f, 0.0f);
lgt1 = new PointLight(lColor1, lPoint, atten);
lgt2 = new PointLight(lColor2, lPoint, atten);
// Set the influencing bounds
aLgt.setInfluencingBounds(bounds);
lgt1.setInfluencingBounds(bounds);
lgt2.setInfluencingBounds(bounds);
// Add the lights into the scene graph
objScale.addChild(aLgt);
l1Trans.addChild(lgt1);
l2Trans.addChild(lgt2);
PickRotateBehavior behavior1 = new PickRotateBehavior(objRoot, canvas,
bounds);
behavior1.setMode(PickTool.GEOMETRY);
behavior1.setTolerance(0.0f);
objRoot.addChild(behavior1);
PickZoomBehavior behavior2 = new PickZoomBehavior(objRoot, canvas,
bounds);
behavior2.setMode(PickTool.GEOMETRY);
behavior2.setTolerance(0.0f);
objRoot.addChild(behavior2);
PickTranslateBehavior behavior3 = new PickTranslateBehavior(objRoot,
canvas, bounds);
behavior3.setMode(PickTool.GEOMETRY);
behavior3.setTolerance(0.0f);
objRoot.addChild(behavior3);
// Let Java 3D perform optimizations on this scene graph.
objRoot.compile();
return objRoot;
}
public PickText3DGeometry() {
}
public void init() {
setLayout(new BorderLayout());
GraphicsConfiguration config = SimpleUniverse
.getPreferredConfiguration();
Canvas3D c = new Canvas3D(config);
add("Center", c);
u = new SimpleUniverse(c);
BranchGroup scene = createSceneGraph(c);
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
u.getViewingPlatform().setNominalViewingTransform();
u.addBranchGraph(scene);
}
public void destroy() {
u.cleanup();
}
//
// The following allows Text3DMotion to be run as an application
// as well as an applet
//
public static void main(String[] args) {
new MainFrame(new PickText3DGeometry(), 700, 700);
}
}
