jCanvas - start y from bottom left

Question

I have created different layers, for example, a roof, a grid and various panels that are set.

I would like to start the y coordinate of the bottom left. Is there an already existing function for this, or is there an elegant solution to this problem?

Answer 1

You would wrap all your calls to jcanvas with a decorator that will "convert" the y-axis values.

Note that you cannot use rotation by 180° since the rotate is applied after positionning.