public static final Vector3d Z_AXIS = new Vector3d(0.0,0.0,1.0);
public static final Vector3d Y_AXIS = new Vector3d(0.0,1.0,0.0);
public static final Vector3d Z_AXIS = new Vector3d(0.0,0.0,1.0);
public static final Vector3d Y_AXIS = new Vector3d(0.0,1.0,0.0);