今天偶尔翻出了很久以前写的java3d程序，很怀念曾经探索java3d解析、渲染ifc数据的日子

package com.vfsd.test0621;

import java.applet.Applet;
import java.awt.BorderLayout;
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.DirectionalLight;
import javax.media.j3d.Material;
import javax.media.j3d.RotPosPathInterpolator;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.media.j3d.TransparencyAttributes;
import javax.media.j3d.TransparencyInterpolator;
import javax.vecmath.Color3f;
import javax.vecmath.Point3d;
import javax.vecmath.Point3f;
import javax.vecmath.Quat4f;
import javax.vecmath.Vector3f;

import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.behaviors.mouse.MouseRotate;
import com.sun.j3d.utils.geometry.Cylinder;
import com.sun.j3d.utils.geometry.Sphere;
import com.sun.j3d.utils.universe.SimpleUniverse;
import com.sun.javafx.sg.prism.NGPhongMaterial;

/*******************************************************************************************************
* Copyright: vc1.0 2018. All rights reserved.

* The whole package including this class is licensed under

*

* @ClassName:

* @Directory:

* @author: luo

* @version: v1.0.0

* @date:

* @Description:

* 1、

* 2、

* @Others: 暂无说明

* @Modification History:

* 1、

* Date:

* Author:

* Modification:

*

* 2、

* Date:

* Author:

* Modification:

*
* @Statement: If you are using the package or parts of it in any commercial way, a commercial license is required.

* Visit http://www.bim-times.com for more information.

*
*********************************************************************************************************/
public class RotPosPathInterpolatorC extends Applet{
public BranchGroup createBranchGroupSceneGraph() {
BranchGroup branchGroupRoot = new BranchGroup();
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),100);
Color3f bgColor = new Color3f(1.0f,1.0f,1.0f);
Background bg = new Background(bgColor);

    bg.setApplicationBounds(bounds);  
    branchGroupRoot.addChild(bg);  
    //定义平行光  
    Color3f directionalColor = new Color3f(1.0f,1.0f,0.9f);  
    Vector3f vec = new Vector3f(4.0f,-7.0f,-12.0f);

    DirectionalLight directionalLight = new DirectionalLight(directionalColor,vec);  
    directionalLight.setInfluencingBounds(bounds);  
    branchGroupRoot.addChild(directionalLight);

    //定义总变换  
    Transform3D t1 = new Transform3D();  
    TransformGroup group1 = new TransformGroup(t1);  
    group1.setCapability(TransformGroup.ALLOW\_TRANSFORM\_WRITE);  
    group1.setCapability(TransformGroup.ALLOW\_TRANSFORM\_READ);  
    branchGroupRoot.addChild(group1);

    //定义鼠标旋转对象  
    MouseRotate mouseR = new MouseRotate();  
    mouseR.setTransformGroup(group1);  
    branchGroupRoot.addChild(mouseR);  
    mouseR.setSchedulingBounds(bounds);

    //定义Apperance类的对象及TransparencyAttributes类  
    Appearance app1 = new Appearance();  
    TransparencyAttributes transparency = new TransparencyAttributes(1,1.0f);  
    transparency.setCapability(TransparencyAttributes.ALLOW\_VALUE\_READ);  
    transparency.setCapability(TransparencyAttributes.ALLOW\_VALUE\_WRITE);

    app1.setTransparencyAttributes(transparency);  
    app1.setCapability(Appearance.ALLOW\_TRANSPARENCY\_ATTRIBUTES\_READ);  
    app1.setCapability(Appearance.ALLOW\_COLORING\_ATTRIBUTES\_WRITE);

    Material material1 = new Material();  
    material1.setDiffuseColor(new Color3f(1.0f,0.0f,0.0f));  
    app1.setMaterial(material1);

    //外观2  
    Appearance app2 = new Appearance();  
    Material material2 = new Material();  
    material2.setDiffuseColor(new Color3f(0.0f,1.0f,0.0f));  
    app2.setMaterial(material2);

    //外观3  
    Appearance app3 = new Appearance();  
    Material material3 = new Material();  
    material3.setDiffuseColor(new Color3f(0.0f,0.0f,1.0f));  
    app3.setMaterial(material3);

    //外观4  
    Appearance app4 = new Appearance();  
    Material material4 = new Material();  
    material4.setDiffuseColor(new Color3f(1.0f,1.0f,0.0f));  
    app4.setMaterial(material4);    

    //定义基本体积外观属性与坐标变换  
    Transform3D t2 = new Transform3D();  
    t2.setScale(1.8);  
    TransformGroup group2 = new TransformGroup(t2);

    group2.setCapability(TransformGroup.ALLOW\_TRANSFORM\_WRITE);  
    group2.setCapability(TransformGroup.ALLOW\_TRANSFORM\_READ);  
    group2.addChild(new Sphere(0.2f,Sphere.GENERATE\_NORMALS,100,app1));//装载

    //定义TransparencyInterpolator  
    Alpha alpha1 = new Alpha(-1,Alpha.INCREASING\_ENABLE|Alpha.DECREASING\_ENABLE,0,0,3000,0,0,3000,0,0);  
    TransparencyInterpolator transparency1 = new TransparencyInterpolator(alpha1, transparency,0.0f,1.0f);  
    transparency1.setSchedulingBounds(bounds);  
    group2.addChild(transparency1);

    t2 = new Transform3D();  
    t2.setScale(1.8);  
    TransformGroup group3 = new TransformGroup(t2);  
    group3.addChild(new Cylinder(0.1f,0.5f,Cylinder.GENERATE\_NORMALS,120,120,app2));//装载

    t2 = new Transform3D();  
    t2.rotX(Math.PI\*0.5);  
    t2.setScale(1.8);

    TransformGroup group4 = new TransformGroup(t2);  
    group4.addChild(new Cylinder(0.1f,0.5f,Cylinder.GENERATE\_NORMALS,120,120,app3));//装载

    t2 = new Transform3D();  
    t2.rotZ(Math.PI\*0.5);  
    t2.setScale(1.8);

    TransformGroup group5 = new TransformGroup(t2);  
    group5.addChild(new Cylinder(0.1f,0.5f,Cylinder.GENERATE\_NORMALS,120,120,app4));//装载

    //定义节点knots数组  
    float\[\] knots = {0.0f,0.2f,0.4f,0.6f,0.8f,1.0f};  
    //定义位置坐标pos数组  
    Point3f\[\] pos = new Point3f\[6\];  
    pos\[0\] = new Point3f(-0.4f,-0.4f,-0.5f);  
    pos\[1\] = new Point3f(-0.3f,0.3f,0.3f);  
    pos\[2\] = new Point3f(-0.0f,0.4f,-0.2f);  
    pos\[3\] = new Point3f(-0.2f,-0.35f,0.3f);  
    pos\[4\] = new Point3f(-0.3f,-0.3f,-0.15f);  
    pos\[5\] = new Point3f(-0.4f,0.3f,0.4f);

    //定义标识旋转方向方向和角度的quat数组  
    Quat4f\[\] quat = new Quat4f\[6\];  
    quat\[0\] = new Quat4f(1.0f,1.0f,1.0f,0.0f);  
    quat\[1\] = new Quat4f(0.0f,1.0f,1.0f,1.0f);  
    quat\[2\] = new Quat4f(1.0f,1.0f,1.0f,1.0f);  
    quat\[3\] = new Quat4f(0.0f,0.0f,1.0f,0.0f);  
    quat\[4\] = new Quat4f(1.0f,0.0f,1.0f,1.0f);  
    quat\[5\] = new Quat4f(01.0f,0.0f,1.0f,1.0f);

    //创建RotPosPathInterpolator类机器Alpha  
    Alpha alpha2 = new Alpha(-1,Alpha.INCREASING\_ENABLE|Alpha.DECREASING\_ENABLE,0,0,8000,0,0,8000,0,0);  
    RotPosPathInterpolator rotpos2 = new RotPosPathInterpolator(alpha2,group1,t1,knots,quat,pos);  
    rotpos2.setSchedulingBounds(bounds);

    group1.addChild(rotpos2);  
    group1.addChild(group2);  
    group1.addChild(group3);  
    group1.addChild(group4);  
    group1.addChild(group5);

    branchGroupRoot.compile();  
    return branchGroupRoot;  
}

public RotPosPathInterpolatorC() {  
    setLayout(new BorderLayout());  
    GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();  
    Canvas3D canvas = new Canvas3D(config);  
    add("Center",canvas);

    BranchGroup groupS = createBranchGroupSceneGraph();  
    SimpleUniverse u1 = new SimpleUniverse(canvas);  
    u1.getViewingPlatform().setNominalViewingTransform();  
    u1.addBranchGraph(groupS);  
}

public static void main(String\[\] args) {  
    new MainFrame(new RotPosPathInterpolatorC(),780,730);  
}

}