cube.java

java 3d编程的一些例子源代码

/*
 * $RCSfile: Cube.java,v $
 *
 * Copyright (c) 2006 Sun Microsystems, Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * - Redistribution of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
 * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
 * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
 * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
 * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
 * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
 * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
 * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * You acknowledge that this software is not designed, licensed or
 * intended for use in the design, construction, operation or
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 *
 * $Revision: 1.1 $
 * $Date: 2006/02/01 01:32:48 $
 * $State: Exp $
 */

package org.jdesktop.j3d.examples.picking;

import javax.media.j3d.*;
import javax.vecmath.*;

public class Cube extends Shape3D {
    private static final float[] verts = {
    // front face
	 1.0f, -1.0f,  1.0f,
	 1.0f,  1.0f,  1.0f,
	-1.0f,  1.0f,  1.0f,
	-1.0f, -1.0f,  1.0f,
    // back face
	-1.0f, -1.0f, -1.0f,
	-1.0f,  1.0f, -1.0f,
	 1.0f,  1.0f, -1.0f,
	 1.0f, -1.0f, -1.0f,
    // right face
	 1.0f, -1.0f, -1.0f,
	 1.0f,  1.0f, -1.0f,
	 1.0f,  1.0f,  1.0f,
	 1.0f, -1.0f,  1.0f,
    // left face
	-1.0f, -1.0f,  1.0f,
	-1.0f,  1.0f,  1.0f,
	-1.0f,  1.0f, -1.0f,
	-1.0f, -1.0f, -1.0f,
    // top face
	 1.0f,  1.0f,  1.0f,
	 1.0f,  1.0f, -1.0f,
	-1.0f,  1.0f, -1.0f,
	-1.0f,  1.0f,  1.0f,
    // bottom face
	-1.0f, -1.0f,  1.0f,
	-1.0f, -1.0f, -1.0f,
	 1.0f, -1.0f, -1.0f,
	 1.0f, -1.0f,  1.0f,
    };

    private static final Vector3f[] normals = {
	new Vector3f( 0.0f,  0.0f,  1.0f),	// front face
	new Vector3f( 0.0f,  0.0f, -1.0f),	// back face
	new Vector3f( 1.0f,  0.0f,  0.0f),	// right face
	new Vector3f(-1.0f,  0.0f,  0.0f),	// left face
	new Vector3f( 0.0f,  1.0f,  0.0f),	// top face
	new Vector3f( 0.0f, -1.0f,  0.0f),	// bottom face
    };

    public Cube() {
	super();

	int i;

	QuadArray cube = new QuadArray(24, QuadArray.COORDINATES |
		QuadArray.NORMALS);

	cube.setCoordinates(0, verts);
        for (i = 0; i < 24; i++) {
            cube.setNormal(i, normals[i/4]);
        }

	cube.setCapability(Geometry.ALLOW_INTERSECT);
        setGeometry(cube);
        setAppearance(new Appearance());
    }
}