[PD] margins

[João Pais]

> I didnt want it to do anything really, just wanted to know what it did...
> what about those unit pixels thing? when the canvas is not gopped?
> cheers

it basically sets the resolution of the gop. you notice it if you use data  
structures.

or even: create an array, and open the graphical subpatch. draw a wave,  
and try around different values. (also for any other fields)


with donecanvasdialog, I use these to change the zoom of my data-s  
patches, etc.