box.java

java写的3D程序,src目录下有其源程序.

package myprojects.graph3dapp;

import java.awt.*;

public class Box extends GraphObject3D {
	Vector3d vertexs[] = new Vector3d[8];
	Facelet faces[] = new Facelet[12];
	Color color = Color.yellow;
	
	public Box(Vector3d v, double lx, double ly, double lz, Material material) {
		create(v, lx, ly, lz, material);	
	}
	
	public Box(Vector3d v, double lx, double ly, double lz) {
		create(v, lx, ly, lz, this.material);
	}
	
	protected void create(Vector3d v, double lx, double ly, double lz, Material material) {
		this.material = material;
		vertexs[0] = new Vector3d(v);
		vertexs[1] = new Vector3d(v.x+lx, v.y, v.z);
		vertexs[2] = new Vector3d(v.x+lx, v.y+ly, v.z);
		vertexs[3] = new Vector3d(v.x, v.y+ly, v.z);
		vertexs[4] = new Vector3d(v.x, v.y, v.z+lz);
		vertexs[5] = new Vector3d(v.x+lx, v.y, v.z+lz);
		vertexs[6] = new Vector3d(v.x+lx, v.y+ly, v.z+lz);
		vertexs[7] = new Vector3d(v.x, v.y+ly, v.z+lz);
		
		faces[0] = new Facelet(this, 0, 2, 1);
		faces[1] = new Facelet(this, 0, 3, 2);
		
		faces[2] = new Facelet(this, 3, 0, 4);
		faces[3] = new Facelet(this, 3, 4, 7);
		
		faces[4] = new Facelet(this, 4, 5, 6);
		faces[5] = new Facelet(this, 4, 6, 7);
		
		faces[6] = new Facelet(this, 5, 1, 2);
		faces[7] = new Facelet(this, 5, 2, 6);
		
		faces[8] = new Facelet(this, 2, 3, 7);
		faces[9] = new Facelet(this, 2, 7, 6);
		
		faces[10] = new Facelet(this, 0, 1, 5);
		faces[11] = new Facelet(this, 0, 5, 4);
		for(int i=0; i<12; i++) faces[i].setMaterial(material);
	}
	
	public Vector3d getVertex(int index) {
		return vertexs[index];
	}
	
	public int vertexCount() {
		return 8;
	}
	
	public Facelet getFace(int index) {
		return faces[index];
	}
	
	public int faceCount() {
		return 12;
	}
}