I created a small python program, which places circles in a tkinter gui, like this:
After the user created the circles, we'll have to print this coordinate system with the circles to a paper, and the whole coordinate system sizes must be accurate for the displayed lengths. I mean, for example one step on the Y axis (which is 10mm in the GUI) must be really 10mm on the printed paper. If a user places a circle with a 5mm diameter, on the printed paper he must measure 5mm as a result. So the real question is, how can I design a Tkinter GUI with pixels etc.., which is real-world accurate after printing it to a simple paper. I've heard about this DPI scale thing, but every computer can have different values, so what is the secure solution for this? Is there any way to use millimeter, or centimeter units during the GUI design procedure?
Thanks for the help! Ben
I tried scaling pixel values used by tkinter somehow, but without success.