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[Java3Djp:00211] Pickingのサンプル
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Picking のサンプルです。あまり良いソースではないかもしれませんが、
コンパイルして楽しんでください。
それぞれの説明はまたの機会に...^^;
PickSelectionFeedback.java
=================================================================
// PickSelectionFeedback.java
// copyright (c) 1999 yasuyuki@xxxxxxxxxx
import java.awt.*;
import java.awt.event.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.geometry.Primitive;
import com.sun.j3d.utils.geometry.Cone;
import com.sun.j3d.utils.geometry.Cylinder;
import com.sun.j3d.utils.geometry.Box;
import com.sun.j3d.utils.behaviors.picking.PickObject;
import com.sun.j3d.utils.behaviors.picking.PickRotateBehavior;
import com.sun.j3d.utils.behaviors.picking.PickTranslateBehavior;
import com.sun.j3d.utils.behaviors.picking.PickZoomBehavior;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
public class PickSelectionFeedback extends java.applet.Applet {
private Canvas3D canvas3d = null;
private BranchGroup objRoot = null;
public void init(){
}
public void paint( Graphics g ){
}
public void update( Graphics g ){
}
public void start(){
}
public void stop(){
}
private Appearance createAppearance(float r, float g, float b) {
Material material = new Material();
material.setLightingEnable(true);
material.setDiffuseColor(new Color3f(r, g, b));
material.setSpecularColor(new Color3f(0.0f, 0.0f, 0.0f));
material.setShininess(32.0f);
Appearance appearance = new Appearance();
appearance.setMaterial(material);
return appearance;
}
public BranchGroup createSceneGraph() {
objRoot = new BranchGroup();
BoundingSphere bounds =
new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
DirectionalLight light =
new DirectionalLight( new Color3f(1.0f, 1.0f, 1.0f),
new Vector3f(0.0f, 0.0f, -1.0f));
light.setInfluencingBounds(bounds);
objRoot.addChild(light);
Cone cone =
new Cone( 0.1f,
0.2f,
Primitive.GENERATE_NORMALS |
Primitive.ENABLE_GEOMETRY_PICKING,
createAppearance(1.0f, 0.0f, 0.0f));
cone.setUserData("This is cone.");
TransformGroup coneTrans = new TransformGroup();
coneTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
coneTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
coneTrans.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
Transform3D coneT3D = new Transform3D();
coneT3D.setTranslation(new Vector3d(0.0, 0.5, 0.0));
coneTrans.setTransform(coneT3D);
coneTrans.addChild(cone);
objRoot.addChild(coneTrans);
Cylinder cylinder =
new Cylinder( 0.1f,
0.2f,
Primitive.GENERATE_NORMALS |
Primitive.ENABLE_GEOMETRY_PICKING,
createAppearance(0.0f, 1.0f, 0.0f));
cylinder.setUserData("This is cylinder.");
TransformGroup cylinderTrans = new TransformGroup();
cylinderTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
cylinderTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
cylinderTrans.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
cylinderTrans.addChild(cylinder);
objRoot.addChild(cylinderTrans);
Box box =
new Box( 0.1f,
0.1f,
0.1f,
Primitive.GENERATE_NORMALS |
Primitive.ENABLE_GEOMETRY_PICKING,
createAppearance(0.0f, 0.0f, 1.0f));
box.setUserData("This is box.");
TransformGroup boxTrans = new TransformGroup();
boxTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
boxTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
boxTrans.setCapability(TransformGroup.ENABLE_PICK_REPORTING);
Transform3D boxT3D = new Transform3D();
boxT3D.setTranslation(new Vector3d(0.0, -0.5, 0.0));
boxTrans.setTransform(boxT3D);
boxTrans.addChild(box);
objRoot.addChild(boxTrans);
PickRotateBehavior rotate =
new PickRotateBehavior(objRoot, canvas3d, bounds, PickObject.USE_GEOMETRY);
objRoot.addChild(rotate);
PickTranslateBehavior translate =
new PickTranslateBehavior(objRoot, canvas3d, bounds, PickObject.USE_GEOMETRY);
objRoot.addChild(translate);
PickZoomBehavior zoom =
new PickZoomBehavior(objRoot, canvas3d, bounds, PickObject.USE_GEOMETRY);
objRoot.addChild(zoom);
return objRoot;
}
public Node pickNode(int mx, int my) {
PickObject pickObject = new PickObject(canvas3d, objRoot);;
SceneGraphPath sgPath = pickObject.pickClosest(mx, my, PickObject.USE_GEOMETRY);
if (sgPath == null)
return null;
Node node = pickObject.pickNode(sgPath, PickObject.PRIMITIVE, 1);
return node;
}
private void initialize3D() {
setLayout(new BorderLayout());
GraphicsConfiguration config =
SimpleUniverse.getPreferredConfiguration();
canvas3d = new Canvas3D(config);
add("Center", canvas3d);
//これでマウスイベントが通知される
canvas3d.addMouseListener(new PickTestAdapter(this));
BranchGroup scene = createSceneGraph();
SimpleUniverse u = new SimpleUniverse(canvas3d);
u.getViewingPlatform().setNominalViewingTransform();
u.addBranchGraph(scene);
}
public PickSelectionFeedback() {
initialize3D();
}
public static void main(String[] args) {
PickSelectionFeedback me = new PickSelectionFeedback();
MainFrame frame = new MainFrame(me, 500, 500);
me.init();
me.start();
}
}
class PickTestAdapter extends MouseAdapter {
PickSelectionFeedback adaptee = null;
public PickTestAdapter(PickSelectionFeedback adaptee) {
this.adaptee = adaptee;
}
public void mouseClicked( MouseEvent e ){
Node node = adaptee.pickNode(e.getX(), e.getY());
if (node != null) {
String data = (String)node.getUserData();
System.out.println("UserData=" + data);
}
}
}
=================================================================
------------------------------------------------------------------
遠藤靖之 (えんどう やすゆき) <yasuyuki@xxxxxxxxxx>
http://www.freepage.total.co.jp/jfriends/ (Java互助会ホームページ)
株式会社タイムインターメディア 情報通信サービス部 TEL 03-5362-9009
〒162-0065 新宿区住吉町3-11 新宿スパイアビル FAX 03-5362-9008