wireframeboxportrayal3d.java

MASON代表多主体邻里或网络仿真(Multi-Agent Simulator of Neighborhoods or Networks)。它是乔治梅森大学用Java开发的离散事件多主体仿真核心库

package sim.portrayal3d.simple;

import sim.portrayal3d.*;
import javax.media.j3d.*;

/**
 * A SimplePortrayal3D which draws an arbitrary wireframe box.  Unlike most other
 * SimplePortrayal3Ds, where you specify a scale, in WireFrameBoxPortrayal3D you
 * specify actual coordinates for opposite corners of the box.  This is because
 * most uses of this portrayal is to draw a big box around your field's extent, and you need
 * this capability to do so conveniently.  Objects portrayed by a WireFrameBoxPortrayal3D
 * are selectable.
 * 
 * <p>Portions of this software is based on the file ColorCube.java, available
 * as part of the Java3D Developer Kit examples, and falls under the license
 * that came with that example.  The license is listed at the end of this file.
 * The remainder of the file falls under the standard license for this library.
 * 
 **/
public class WireFrameBoxPortrayal3D extends SimplePortrayal3D
    {
    //LineStripArray box;
    public Appearance appearance;
    
    private static final float[] verts = 
        {
            1f, 0f,  1f,     1f,  1f,  1f,  0f,  1f,  1f,   0f, 0f,  1f,     1f, 0f,  1f,/* front face*/    
            0f, 0f, 0f,     0f,  1f, 0f,     1f,  1f, 0f,    1f, 0f, 0f,    0f, 0f, 0f,/* back face*/       
            1f, 0f, 0f,      1f,  1f, 0f,    1f,  1f,  1f,   1f, 0f,  1f,    1f, 0f, 0f,/* right face*/     
            0f, 0f,  1f,    0f,  1f,  1f,   0f,  1f, 0f,    0f, 0f, 0f,     0f, 0f,  1f,/* left face*/      
            1f,  1f,  1f,    1f,  1f, 0f,   0f,  1f, 0f,    0f,  1f,  1f,    1f,  1f,  1f,/* top face*/     
            0f, 0f,  1f,    0f, 0f, 0f,      1f, 0f, 0f,     1f, 0f,  1f,   0f, 0f,  1f /* bottom face*/
        };
        
    float[] scaledVerts = new float[verts.length];
    
    /** Draws a white wireframe box from (-0.5,-0.5,-0.5) to (0.5,0.5,0.5) */
    public WireFrameBoxPortrayal3D() { this(-0.5,-0.5,-0.5,0.5,0.5,0.5); }

    //    /** Draws a white wireframe box from (-dx/2,-dy/2,-dz/2) to (dx/2,dy/2,dz/2) */
    //    public WireFrameBoxPortrayal3D(double dx, double dy, double dz)
    //      {
    //        this(-dx/2,-dy/2,-dz/2, dx/2,dy/2,dz/2);
    //      }

    /** Draws a white wireframe box from (x,y,z) to (x2,y2,z2) */
    public WireFrameBoxPortrayal3D(double x, double y, double z, double x2, double y2, double z2)
        {
        this(x,y,z,x2,y2,z2,java.awt.Color.white);
        }

    /** Draws a wireframe box from (x,y,z) to (x2,y2,z2) in the specified color. */
    public WireFrameBoxPortrayal3D(double x, double y, double z, double x2, double y2, double z2, java.awt.Color color)
        {
        this(x,y,z,x2,y2,z2,appearanceForColor(color));
        }

    /** Draws a wireframe box from (x,y,z) to (x2,y2,z2) in the specified appearance. */
    public WireFrameBoxPortrayal3D(double x, double y, double z, double x2, double y2, double z2, Appearance appearance)
        {
        this.appearance = appearance;
        //float scaledVerts[] = new float[verts.length];
        for (int i = 0; i < verts.length/3; i++)
            {
            scaledVerts[3*i  ] = verts[3*i  ] * (float)(x2-x) + (float)x;
            scaledVerts[3*i+1] = verts[3*i+1] * (float)(y2-y) + (float)y;
            scaledVerts[3*i+2] = verts[3*i+2] * (float)(z2-z) + (float)z;
            }
        }

    public TransformGroup getModel(Object obj, TransformGroup tg)
        {
        if(tg==null)
            {
            TransformGroup modelTG = new TransformGroup();

            LineStripArray box = new LineStripArray(30, QuadArray.COORDINATES, new int[]{5, 5, 5, 5, 5, 5});
            box.setCoordinates(0, scaledVerts);

            Shape3D s = new Shape3D(box,appearance);
            modelTG.addChild(s);
            setPickableFlags(s);  // make it pickable
            return modelTG;
            }
        else return tg;
        }
    }

/* Portions of this software is based on the file ColorCube.java, available
 * as part of the Java3D Developer Kit examples.  The license for ColorCube.java
 * is listed below.
 *
 *
 *      @(#)ColorCube.java 1.3 98/09/28 13:12:26 
 *
 * Copyright (c) 1996-1998 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
 * modify and redistribute this software in source and binary code form,
 * provided that i) this copyright notice and license appear on all copies of
 * the software; and ii) Licensee does not utilize the software in a manner
 * which is disparaging to Sun.
 *
 * 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 AND ITS LICENSORS SHALL NOT BE
 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
 * OR DISTRIBUTING THE 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 SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 * This software is not designed or intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear
 * facility. Licensee represents and warrants that it will not use or
 * redistribute the Software for such purposes.
 */