code: @Override
  	public void setFromCenter(double centerX, double centerY, double centerZ, double cornerX, double cornerY, double cornerZ) {
  		double dx = centerX - cornerX;
  		double dy = centerY - cornerY;
  		double dz = centerZ - cornerZ;
  		setFromCorners(cornerX, cornerY, cornerZ, centerX + dx, centerY + dy, centerZ + dz);
  	}
docs: Sets the framing box of this <code>Shape</code>
  based on the specified center point coordinates and corner point
  coordinates.  The framing box is used by the subclasses of
  <code>BoxedShape</code> to define their geometry.
  
  @param centerX the X coordinate of the specified center point
  @param centerY the Y coordinate of the specified center point
  @param centerZ the Z coordinate of the specified center point
  @param cornerX the X coordinate of the specified corner point
  @param cornerY the Y coordinate of the specified corner point
  @param cornerZ the Z coordinate of the specified corner point