[Invert ruler for Y axis]

6 hours ago, Tactilis said:

How feasible is it for you to mock up your screen upside down; at least when you need to do a measurement?

It's very quick to do Image | Flip Vertical  by pressing Alt+I  V

You could then do the part of the drawing that requires measurement with the Y-axis in the desired orientation and afterwards flip back to view your screen.
 

 

This feels like as much of a distraction as doing the "subtract from 720" math I currently do in my head; but maybe I'll develop muscle memory for it. I'll give it a go, thanks!

[Invert ruler for Y axis]

I'm working in a game engine that measures the Y axis with 0 being at the bottom of the screen and I have been using PDN to mock up screens before coding them.

Is there any way to make the ruler in PDN measure vertically starting at 0 at the bottom of the image?

 

Thanks