poly_4d.java

一个J2ME的3D 一个J2ME的3D 一个J2ME的3D

/**
 * 
 */
package object3d;

import render.Textrue;
import Math.Matrix4X4;
import Math.Point4D;
import Math.Vector4D;

/**
 * @author PanXu
 *
 */
public class Poly_4D {

	/**
	 * 
	 */
	public Poly_4D() {
		super();
		// TODO 自动生成构造函数存根
		Color = 0xff00ffff;
		Pos = new Point4D ();
		VIndex = new int [3];
		n = new Vector4D();
		Dir = new Vector4D();
		this .State &= POLY_STATE_ACTIVE; 
	}
	
	/**
	 * 常量
	 */
	//状态
	public static int POLY_STATE_ACTIVE	 = 0x00000001;
	public static int POLY_STATE_BACK		 = 0x00000002;
	public static int POLY_STATE_CLIP		 = 0x00000004;
	//着色模式
	public static int POLY_SHADE_SOILD	 = 0x00000010;
	public static int POLY_SHADE_GOURAUD	 = 0x00000020;
	public static int POLY_SHADE_LINE 	 = 0x00000040;
	
	public static int POLY_SHADE_TEXTURE   = 0x00000100;
	public static int POLY_SHADE_RGB 		 = 0x00000200;
	
	/**
	 * 
	 */
	//状态
	public int State ;
	//多边形颜色
	public int Color ;
	//位置
	public Point4D Pos = null;
	//顶点表
	public Vertex4D Vlist[] = null;
	public Vertex4D Tlist[] = null;
	//顶点索引
	public int VIndex [] = null;
	//法线长度
	public float nLen ;
	//法线
	public Vector4D n = null;
	//朝向
	public Vector4D Dir = null;
	//材质
	Textrue Tex = null;
	//矩阵变换中间变量
	private static Matrix4X4 Temp = new Matrix4X4 ();
	/**
	 * 函数
	 */
	
	/**
	 * 生成变换矩阵
	 *
	 */
	public Matrix4X4 BuildTranMat ()
	{
		Matrix4X4 res = new Matrix4X4 ();
		res .Set_MOVMAT(this .Pos.M[0],this .Pos.M[1],this .Pos.M[2]);
		
		//System .out.println(this .Dir.M[2]);
		this .Temp .Set_CIRMAT((int)this .Dir.M[0],(int)this .Dir.M[1],
				(int)this .Dir.M[2]);
		//Temp .Print();
		res = res .MAT4X4_MUL_Stack(Temp , res);
		return res ;
	}
	/**
	 * 变换到世界坐标
	 */
	public void TranToWorld (Matrix4X4 mat)
	{
		if (mat == null)
		{
			System .out .println ("TranToWorld 空指针");
		}
		this .Tlist[this .VIndex[0]].Pos = 
			this .Vlist[this .VIndex[0]].Pos.MAT4X4_MUL_PT4D(mat);		
		this .Tlist[this .VIndex[1]].Pos = 
			this .Vlist[this .VIndex[1]].Pos.MAT4X4_MUL_PT4D(mat);
		this .Tlist[this .VIndex[2]].Pos = 
			this .Vlist[this .VIndex[2]].Pos.MAT4X4_MUL_PT4D(mat);
	}
}