Question

我在jogl的java中有一个项目Jug3D，我想用鼠标或键盘移动它。我试图搜索和编写代码。我如何添加mouseAdapter或keyboardAdapter来移动形状？

我的源代码

（需要添加JOGL库）：

JOGL图书馆

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输出

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package Jug3D;

import com.jogamp.newt.Window;
import com.jogamp.newt.event.awt.*;
import com.jogamp.opengl.GL;
import com.jogamp.opengl.GL2;
import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLEventListener;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.awt.GLJPanel;
import com.jogamp.opengl.util.gl2.GLUT;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javafx.animation.*;

public class Jug3D extends JPanel implements GLEventListener {

public static void main(String[] args) {
    JFrame window = new JFrame("JUG 3D");
    window.setContentPane(new Jug3D());
    window.pack();
    window.setLocation(50,50);
    window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    window.setVisible(true);
}

private GLJPanel display;
private float rotateX, rotateY;   // rotation amounts about axes, controlled by keyboard


public Jug3D() {
    GLCapabilities caps = new GLCapabilities(null);
    display = new GLJPanel(caps);
    display.setPreferredSize( new Dimension(600,600) );  // TODO: set display size here
    display.addGLEventListener(this);
    setLayout(new BorderLayout());
    add(display,BorderLayout.CENTER);
    // TODO:  Other components could be added to the main panel.

    rotateX = 15;  // initialize some variables used in the drawing.
    rotateY = 15;

    // TODO:  Uncomment the next two lines to enable keyboard event handling
    //requestFocusInWindow();
    //addKeyListener(this);

    // TODO:  Uncomment the next one or two lines to enable mouse event handling
    //display.addMouseListener(this);
    //display.addMouseMotionListener(this);


}

// ---------------  Methods of the GLEventListener interface -----------

private GLUT glut = new GLUT();  // for drawing the teapot

/**
 * This method is called when the OpenGL display needs to be redrawn.
 */
public void display(GLAutoDrawable drawable) {  
        // called when the panel needs to be drawn

    GL2 gl = drawable.getGL().getGL2();
    gl.glClearColor(0,0,0,0); // BG Color *
    gl.glClear( GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT );

    gl.glMatrixMode(GL2.GL_PROJECTION);  // same like texture *
    gl.glLoadIdentity();
    gl.glOrtho(-1,1,-1,1,-2,2); // position of jug
    gl.glMatrixMode(GL2.GL_MODELVIEW); // same like texture *

    gl.glLoadIdentity();             // Set up modelview transform. 
    gl.glRotatef(rotateY,0,1,0);
    gl.glRotatef(rotateX,1,0,0);

    // TODO: add drawing code!!  As an example, draw a GLUT teapot
    glut.glutSolidTeapot(0.5); // size of glut



}

/**
 * This is called when the GLJPanel is first created.  It can be used to initialize
 * the OpenGL drawing context.
 */
public void init(GLAutoDrawable drawable) {
        // called when the panel is created
    GL2 gl = drawable.getGL().getGL2();
    gl.glClearColor(0.8F, 0.8F, 0.8F, 1.0F);
    gl.glEnable(GL.GL_DEPTH_TEST);
    gl.glEnable(GL2.GL_LIGHTING);
    gl.glEnable(GL2.GL_LIGHT0);
    gl.glEnable(GL2.GL_COLOR_MATERIAL);

               gl.glEnable(GL2.GL_NORMALIZE);

}


public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
}


public void dispose(GLAutoDrawable drawable) {
}

}

Answer 1

这是完整的源代码（使用JOGL 2.3）

import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;

import javax.swing.JFrame;
import javax.swing.SwingUtilities;

import com.jogamp.opengl.GL;
import com.jogamp.opengl.GL2;
import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLEventListener;
import com.jogamp.opengl.GLProfile;
import com.jogamp.opengl.awt.GLCanvas;
import com.jogamp.opengl.util.Animator;
import com.jogamp.opengl.util.gl2.GLUT;

public class G1 extends JFrame implements GLEventListener, MouseMotionListener {

    private static final long serialVersionUID = 7376825297884956163L;

    private float rotateX, rotateY;
    private int lastX, lastY;

    public G1() {
        super("G1");
        setSize(800,600);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        GLProfile glProfile = GLProfile.getDefault();
        GLCapabilities glCapabilities = new GLCapabilities(glProfile);
        glCapabilities.setDoubleBuffered(true);
        GLCanvas glCanvas = new GLCanvas(glCapabilities);
        glCanvas.addGLEventListener(this);
        glCanvas.addMouseMotionListener(this);
        add(glCanvas);
        addMouseMotionListener(this);
        rotateX = 0f; rotateY = 0f;
        Animator a = new Animator(glCanvas);
        a.start();
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                G1 g1 = new G1();
                g1.setVisible(true);
            }
        });
    }

    @Override
    public void display(GLAutoDrawable drawable) {
        GL2 gl = drawable.getGL().getGL2();
        gl.glClearColor(0,0,0,0);
        gl.glClear( GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT );
        gl.glMatrixMode(GL2.GL_PROJECTION);
        gl.glLoadIdentity();
        gl.glOrtho(-1,1,-1,1,-2,2);
        gl.glMatrixMode(GL2.GL_MODELVIEW);
        gl.glLoadIdentity();
        gl.glRotatef(rotateX,0,1,0);
        gl.glRotatef(rotateY,1,0,0);
        (new GLUT()).glutSolidTeapot(0.5);
    }

    @Override
    public void init(GLAutoDrawable drawable) {
        GL2 gl = drawable.getGL().getGL2();
        gl.glClearColor(0.8F, 0.8F, 0.8F, 1.0F);
        gl.glEnable(GL.GL_DEPTH_TEST);
        gl.glEnable(GL2.GL_LIGHTING);
        gl.glEnable(GL2.GL_LIGHT0);
        gl.glEnable(GL2.GL_COLOR_MATERIAL);
        gl.glEnable(GL2.GL_NORMALIZE);
    }

    @Override
    public void reshape(
            GLAutoDrawable arg0, int arg1, int arg2, int arg3, int arg4) {
    }

    @Override
    public void dispose(GLAutoDrawable arg0) {
    }

    @Override
    public void mouseMoved(MouseEvent e) {
        lastX = e.getX();
        lastY = e.getY();
    }

    @Override
    public void mouseDragged(MouseEvent e) {
        rotateX += e.getX() - lastX;
        rotateY += e.getY() - lastY;
        lastX = e.getX();
        lastY = e.getY();
    }

}

Answer 2

按照以下步骤使用鼠标移动移动模型。

使用MouseMotionListener作为接口实现。

import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;

public class Jug3D extends JPanel implements GLEventListener, MouseMotionListener {

创建字段lastX和lastY。

private int lastX, lastY;

将类对象添加为侦听器。

display.addMouseMotionListener(this);

使用动画师开始。

Animator a = new Animator(display);
a.start();

实施接口方法。

@Override
public void mouseMoved(MouseEvent e) {
    lastX = e.getX();
    lastY = e.getY();
}

@Override
public void mouseDragged(MouseEvent e) {
    rotateX += e.getX() - lastx;
    rotateY += e.getY() - lasty;
    lastX = e.getX();
    lastY = e.getY();
}

如何通过鼠标或KeyBoard在Java 3D中移动3D模型

2 个答案: