object3d.java

wince 5.0上基于personal java写的的虚拟魔方

/*
 * Generic 3D Model for Java Virtual Cube
 * --------------------------------------
 *
 * Copyright 1996, Song Li  
 * URL: http://www.cs.umbc.edu/~sli2
 *
 * Portion of Program by David W. Liu  
 * URL: http://reality.sgi.com/employees/davidliu_mti
 *
 * 
 * You can use the code for any nonprofittable use. But remember to mention
 * the authors' names in your revised program. You are also encouraged to
 * improve the program or give your comments and bug reports. If there are
 * further questions, please contact me and I'll be glad to help. My E-Mail
 * address is: [e-mail].
 *
 */


import java.awt.Color;
import java.awt.Graphics;




class Object3D {
    Matrix3D TransMat ;

    Vertex   TransVer [] ;
  
    // Faces are defined by reference to Vertices.
    
    public Vertex   Vertices [] = null ;
    public Face     Faces    [] = null ;
    public int      VerNum  ;
    public int      FaceNum ;
  
  
    public Object3D () {
        TransMat = new Matrix3D () ;
        TransMat.Unify () ;
    }
  
  

    public void Define (Vertex vertices[], int vernum,
          	        Face   faces[],    int facenum) {

        Vertices = new Vertex [vernum] ;
        for (int i=0; i<vernum; i++)
            Vertices[i] = new Vertex (vertices[i]) ;

        TransVer  = vertices;
        VerNum    = vernum;
        Faces     = faces;
        FaceNum   = facenum;
    }



    public void Unify () {TransMat.Unify () ;}
  
  

    /** Transform all the vertices in the model using 3D matrix mat,
        and put result into TransVer. Vertices is a "permenant" copy
        of the model, which is used to avoid model distortion caused
        by inaccuracy of floating point calculation.
     */

    void Transform () {
        TransMat.Transform (Vertices, TransVer, VerNum) ;
    }
  

    void XRotate (double theta) {TransMat.ProXRotate (theta) ;}
    void YRotate (double theta) {TransMat.ProYRotate (theta) ;}
    void ZRotate (double theta) {TransMat.ProZRotate (theta) ;}
  
}