import javax.media.j3d.*;
public class triangleShape extends Shape3D{
	int vCount=6;
	private float vert[]={.5f,0.5f,0.0f,-0.5f,0.5f,0.0f,
	                    0.3f,0.0f,0.0f,-0.3f,0.0f,0.0f,0.5f,0.5f,0.0f,0.5f,-0.5f,0.0f,};
	private float color[]={0.0f,0.5f,1.0f,0.0f,0.5f,1.0f,
	                    0.0f,0.8f,2.0f,1.0f,0.0f,0.3f,0.0f,1.0f,0.3f,0.3f,0.8f,0.0f,};
	public triangleShape(){
		TriangleArray triangle=new TriangleArray(vCount,TriangleArray.COORDINATES|TriangleArray.COLOR_3);
		triangle.setCoordinates(0,vert);
		triangle.setColors(0,color);
		PolygonAttributes polygona=new PolygonAttributes();//////////設置面的屬性
		polygona.setCullFace(PolygonAttributes.CULL_NONE);
		Appearance app=new Appearance();
		app.setPolygonAttributes(polygona);
		this.setGeometry(triangle);
		this.setAppearance(app);///屬性設置結束
		//triangle.setCullFace(PolygonAttrivutes.CULL_NONE);
		this.setGeometry(triangle);
	}
}