code: @Override
  	public void set(double x, double y, double z, double radius1) {
  		this.cx = x;
  		this.cy = y;
  		this.cz = z;
  		this.radius = Math.abs(radius1);
  	}
docs: Change the frame of the sphere.
  
  @param x
  @param y
  @param z
  @param radius1