postion.java

有关于java 3D的一些编程

import com.sun.j3d.utils.geometry.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;

public class Postion {
public Postion() {
SimpleUniverse universe = new SimpleUniverse();
BranchGroup group = new BranchGroup();
// X轴由球体组成
for (float x = -1.0f; x <= 1.0f; x = x + 0.1f)
{
Sphere sphere = new Sphere(0.05f);
TransformGroup tg = new TransformGroup();
Transform3D transform = new Transform3D();
Vector3f vector = new Vector3f( x, .0f, .0f);
transform.setTranslation(vector);
tg.setTransform(transform);
tg.addChild(sphere);
group.addChild(tg);}
// Y>轴由锥体组成
for (float y = -1.0f; y <= 1.0f; y = y + 0.1f)
{
TransformGroup tg = new TransformGroup();
Transform3D transform = new Transform3D();
Cone cone = new Cone(0.05f, 0.1f);
Vector3f vector = new Vector3f(.0f, y, .0f);
transform.setTranslation(vector);
tg.setTransform(transform);
tg.addChild(cone);
group.addChild(tg);}
// Z轴由柱体组成
for (float z = -1.0f; z <= 1.0f; z = z+ 0.1f)
{TransformGroup tg = new TransformGroup();
Transform3D transform = new Transform3D();
Cylinder cylinder = new Cylinder(0.05f, 0.1f);
Vector3f vector = new Vector3f(.0f, .0f, z);
transform.setTranslation(vector);
tg.setTransform(transform);
tg.addChild(cylinder);
group.addChild(tg);} 
Color3f light1Color = new Color3f(.1f, 1.4f, .1f); // green light
BoundingSphere bounds =new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);
Vector3f light1Direction= new Vector3f(4.0f, -7.0f, -12.0f);
DirectionalLight light1= new DirectionalLight(light1Color, light1Direction);
light1.setInfluencingBounds(bounds);
group.addChild(light1);
universe.getViewingPlatform().setNominalViewingTransform();
// 把物体组加入宇宙
universe.addBranchGraph(group);
}
public static void main(String[] args) {new Postion();}
}