关于java3d动画代码的信息

求java做动画代码

import java.awt.Canvas;

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import java.awt.Color;

import java.awt.Dimension;

import java.awt.EventQueue;

import java.awt.Frame;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Image;

import java.awt.RenderingHints;

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

import java.awt.event.WindowAdapter;

import java.awt.event.WindowEvent;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.IOException;

import javax.imageio.ImageIO;

public class TestImage extends Frame

{

private static final long serialVersionUID = 1L;

private static boolean PRESSED = false;

private static int pointX = 0;

private static int pointy = 200;

private static int RIGHT_GO = 0;

private static int LEFT_GO = 0;

private static int DIR = 0;

private static int ANGLE = 0;

private static int W = 50;

private static int H = 60;

private _Canvas canvas = null;

public TestImage ()

{

add (canvas = new _Canvas ());

setIgnoreRepaint (true);

requestFocus ();

}

public class _Canvas extends Canvas implements Runnable

{

private static final long serialVersionUID = 1L;

private BufferedImage bi = null;

private Image bufferedImage = null;

private Thread thread = null;

private long sleepTime = 10;

public _Canvas ()

{

try

{

bi = ImageIO.read (new File ("go.png"));

}

catch (IOException e)

{}

setBackground (Color.BLACK);

requestFocus ();

addKeyListener (new KeyListener ()

{

@Override

public void keyTyped ( KeyEvent e )

{}

@Override

public void keyReleased ( KeyEvent e )

{

RIGHT_GO = 0;

PRESSED = false;

}

@Override

public void keyPressed ( KeyEvent e )

{

// 38 40 37 39上下左右

DIR = e.getKeyCode ();

PRESSED = true;

}

});

}

@Override

public void paint ( Graphics g )

{

Graphics2D g2d = (Graphics2D) g;

g2d.setRenderingHint (RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

g2d.drawImage (rotateImage (bi.getSubimage (RIGHT_GO, LEFT_GO, W, H), ANGLE, true), pointX, pointy, W, H,

this);

g2d.dispose ();

}

@Override

public void update ( Graphics g )

{

if (null == bufferedImage)

{

bufferedImage = createImage (getWidth (), getHeight ());

}

Graphics bufferedG = bufferedImage.getGraphics ();

bufferedG.clearRect (0, 0, getWidth (), getHeight ());

paint (bufferedG);

bufferedG.dispose ();

g.drawImage (bufferedImage, 0, 0, this);

g.dispose ();

}

public void start ()

{

thread = new Thread (this);

thread.setName ("TestImage");

thread.setPriority (Thread.MIN_PRIORITY);

thread.start ();

}

public synchronized void stop ()

{

thread = null;

notify ();

}

@Override

public void run ()

{

Thread me = Thread.currentThread ();

while (thread == me  !isShowing () || getSize ().width == 0)

{

try

{

Thread.sleep (555);

}

catch (InterruptedException e)

{

return;

}

}

while (thread == me  isShowing ())

{

if (PRESSED)

{

try

{

if (DIR == 39)

{

RIGHT_GO = RIGHT_GO + 50;

LEFT_GO = 0;

pointX = pointX + 1;

if (pointX  420)

{

ANGLE = 90;

pointX--;

pointy--;

W = 60;

H = 50;

}

if (RIGHT_GO  50)

{

RIGHT_GO = 0;

}

}

else if (DIR == 37)

{

pointX = pointX - 1;

RIGHT_GO = RIGHT_GO + 50;

LEFT_GO = 60;

if (pointX  0)

{

ANGLE = -90;

pointX++;

pointy--;

W = 60;

H = 50;

}

if (RIGHT_GO  50)

{

RIGHT_GO = 0;

}

}

else if (DIR == 38)

{

W = 50;

H = 60;

pointy = 150;

ANGLE = 0;

RIGHT_GO = 100;

}

else if (DIR == 40)

{

W = 50;

H = 60;

ANGLE = 0;

pointy = 200;

RIGHT_GO = 0;

}

Thread.sleep (sleepTime);

repaint ();

}

catch (InterruptedException e)

{

break;

}

}

else

{

RIGHT_GO = RIGHT_GO + 50;

LEFT_GO = 0;

pointX = pointX + 1;

if (RIGHT_GO  50)

{

RIGHT_GO = 0;

}

if (pointX  500)

{

pointX = 0;

}

try

{

Thread.sleep (sleepTime);

repaint ();

}

catch (InterruptedException e)

{

break;

}

}

}

thread = null;

}

}

/**

 * 旋转图像为指定角度

 * 

 * @param degree

 * @return

 */

public static BufferedImage rotateImage ( final BufferedImage image, final int angdeg, final boolean d )

{

int w = image.getWidth ();

int h = image.getHeight ();

int type = image.getColorModel ().getTransparency ();

BufferedImage img;

Graphics2D graphics2d;

( graphics2d = ( img = new BufferedImage (w, h, type) ).createGraphics () ).setRenderingHint (

RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

graphics2d.rotate (d ? -Math.toRadians (angdeg) : Math.toRadians (angdeg), w / 2, h / 2);

graphics2d.drawImage (image, 0, 0, null);

graphics2d.dispose ();

return img;

}

public static void main ( String[] args )

{

EventQueue.invokeLater (new Runnable ()

{

@Override

public void run ()

{

final TestImage ti = new TestImage ();

ti.setSize (new Dimension (500, 300));

ti.setLocationRelativeTo (null);

ti.addWindowListener (new WindowAdapter ()

{

@Override

public void windowClosing ( WindowEvent e )

{

System.exit (0);

}

@Override

public void windowDeiconified ( WindowEvent e )

{

ti.canvas.start ();

}

@Override

public void windowIconified ( WindowEvent e )

{

ti.canvas.stop ();

}

});

ti.setResizable (false);

ti.canvas.start ();

ti.setVisible (true);

}

});

}

}

java环境下，如何实现3D图形的自动旋转？

程序实现思路: 在javafx中Node对象有一个effect属性，可以用于实现各种特效。PerspectiveTransform特效可以使Node对象实现透视变换。因此我们可以通过计算透视变换中每个点的位置来实现3D翻转特效。

实现步骤: 1、定义FlipView对象。包含以下属性:

复制代码 代码如下:

//正面视图

public Node frontNode;

//反面视图

public Node backNode;

//是否翻转

boolean flipped = false;

//翻转角度

DoubleProperty time = new SimpleDoubleProperty(Math.PI / 2);

//正面翻转特效

PerspectiveTransform frontEffect = new PerspectiveTransform();

//反面翻转特效

PerspectiveTransform backEffect = new PerspectiveTransform();

create方法返回需要显示的内容:

复制代码 代码如下:

private void create() {

time.addListener(new ChangeListener() {

@Override

public void changed(ObservableValue? extends Number arg0,

Number arg1, Number arg2) {

setPT(frontEffect, time.get());

setPT(backEffect, time.get());

}

});

anim.getKeyFrames().addAll(frame1, frame2);

backNode.visibleProperty().bind(

Bindings.when(time.lessThan(0)).then(true).otherwise(false));

frontNode.visibleProperty().bind(

Bindings.when(time.lessThan(0)).then(false).otherwise(true));

setPT(frontEffect, time.get());

setPT(backEffect, time.get());

frontNode.setEffect(frontEffect);

backNode.setEffect(backEffect);

getChildren().addAll(backNode, frontNode);

}

以上代码需要注意的是: 随着time值的变化frontEffect和backEffect的值也会随着变换。 2、PerspectiveTransform特效的实现使用了Math.sin()和Math.cos()方法模拟3D角度变换。 具体实现如下:

复制代码 代码如下:

private void setPT(PerspectiveTransform pt, double t) {

double width = 200;

double height = 200;

double radius = width / 2;

double back = height / 10;

pt.setUlx(radius - Math.sin(t) * radius);

pt.setUly(0 - Math.cos(t) * back);

pt.setUrx(radius + Math.sin(t) * radius);

pt.setUry(0 + Math.cos(t) * back);

pt.setLrx(radius + Math.sin(t) * radius);

pt.setLry(height - Math.cos(t) * back);

pt.setLlx(radius - Math.sin(t) * radius);

pt.setLly(height + Math.cos(t) * back);

}

3、角度变换在1秒的时间内从3.14/2变换到-3.14/2。

复制代码 代码如下:

KeyFrame frame1 = new KeyFrame(Duration.ZERO, new KeyValue(time,

Math.PI / 2, Interpolator.LINEAR));

KeyFrame frame2 = new KeyFrame(Duration.seconds(1),

new EventHandler() {

@Override

public void handle(ActionEvent event) {

flipped = !flipped;

}

}, new KeyValue(time, -Math.PI / 2, Interpolator.LINEAR));

4、FlipView对象的创建:通过构造函数可以很方便的创建FlipView对象.

复制代码 代码如下:

ImageView image1 = new ImageView(new Image(getClass()

.getResourceAsStream("lion1.png")));

ImageView image2 = new ImageView(new Image(getClass()

.getResourceAsStream("lion2.png")));

FlipView flip = new FlipView(image1, image2);

java怎么画出 3D 效果的图像？

可参考 孙博文 的一本书 分形算法与程序设计: Java实现 里面有3D的内容

貌似要下载 JAVA3D 的msi安装包 解压后得到jar包 JAVA 3D已经被淘汰 可能有点难找

用Java3D编程就行了 你先把那书上关于3D的代码 稍微看一下 编程的思路也就是 先建立一个场景(有光) 然后空间描点 画线 着色 之类的 可以参考具体的Java 3D 的书 貌似大多是英文的

编程也可以参考官方API文档

java3D的问题…我要利用java3d绘制一个地球可以自转的动画…

import java.applet.Applet;

import java.awt.*;

import com.sun.j3d.utils.applet.MainFrame;

import com.sun.j3d.utils.universe.*;

import javax.media.j3d.*;

import javax.vecmath.*;

import static java.lang.Math.*;

import com.sun.j3d.utils.behaviors.mouse.*;

public class Ball11 extends Applet

{

private float vert[]=new float[30000];

private Color3f color[]=new Color3f[30000];

public BranchGroup createSceneGraph(){

BranchGroup objRoot=new BranchGroup();//分支组

BoundingSphere bounds=new BoundingSphere(new Point3d(),100.0);

Color3f bgColor=new Color3f(1.0f,1.0f,1.0f);

Background bg=new Background(bgColor);//背景颜色

bg.setApplicationBounds(bounds);//背景范围

objRoot.addChild(bg);

//添加平行光

DirectionalLight lightD1=new DirectionalLight();

lightD1.setInfluencingBounds(new BoundingSphere());

Vector3f direction=new Vector3f(2.5f,8.0f,-1.0f);

Color3f color1=new Color3f(1.0f,0.0f,0.0f);

direction.normalize();

lightD1.setDirection(direction);

lightD1.setColor(color1);

objRoot.addChild(lightD1);

//初始化

pointinit();

//添加运输组

TransformGroup trans=new TransformGroup();

trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);

trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);

objRoot.addChild(trans);

Shape3D shape=new Shape3D();

QuadArray qArray=new QuadArray(30000,QuadArray.COORDINATES|QuadArray.COLOR_3);

qArray.setCoordinates(0,vert);

qArray.setColors(0,color);

PolygonAttributes pa=new PolygonAttributes();

pa.setCullFace(PolygonAttributes.CULL_NONE);

shape.setGeometry(qArray);

Appearance app=new Appearance();

app.setPolygonAttributes(pa);

shape.setAppearance(app);

trans.addChild(shape);

//添加鼠标事件

MouseRotate rotate=new MouseRotate();

rotate.setTransformGroup(trans);

objRoot.addChild(rotate);

rotate.setSchedulingBounds(bounds);

MouseZoom zoom=new MouseZoom();

zoom.setTransformGroup(trans);

objRoot.addChild(zoom);

zoom.setSchedulingBounds(bounds);

MouseTranslate translate=new MouseTranslate();

translate.setTransformGroup(trans);

objRoot.addChild(translate);

translate.setSchedulingBounds(bounds);

objRoot.compile();

return objRoot;

}

public void pointinit(){

int i=0;

for(double a=0;a=2*Math.PI;a+=0.09){

for(double b=0;b=Math.PI;b+=0.1){

vert[i]=(float)Math.sin(b)*(float)cos(a);i++;

vert[i]=(float)Math.sin(a)*(float)sin(b);i++;

vert[i]=(float)Math.cos(b);i++;

vert[i]=(float)Math.sin(b)*(float)cos(a+0.1);i++;

vert[i]=(float)Math.sin(a+0.1)*(float)sin(b);i++;

vert[i]=(float)Math.cos(b+0.1);i++;

vert[i]=(float)Math.sin(b+0.1)*(float)cos(a+0.1);i++;

vert[i]=(float)Math.sin(a+0.1)*(float)sin(b+0.1);i++;

vert[i]=(float)Math.cos(b+0.1);i++;

vert[i]=(float)Math.sin(b+0.1)*(float)cos(a);i++;

vert[i]=(float)Math.sin(a)*(float)sin(b+0.1);i++;

vert[i]=(float)Math.cos(b+0.1);i++;

}

}

for(i=0;i30000;i++){

color[i]=new Color3f(0.4f,0.0f,0.5f);

}

}

public Ball11(){

setLayout(new BorderLayout());

GraphicsConfiguration config=SimpleUniverse.getPreferredConfiguration();

Canvas3D c=new Canvas3D(config);

add("Center",c);

BranchGroup scene=createSceneGraph();

SimpleUniverse u=new SimpleUniverse(c);

u.getViewingPlatform().setNominalViewingTransform();

u.addBranchGraph(scene);

}

public static void main(String[] args){

long time1=System.nanoTime();

new MainFrame(new Ball11(),400,400);

long time2=System.nanoTime();

System.out.println("用时为: "+(time2-time1)/1000000000.0 + " 秒");

}

}