Re: gEDA-user: final modification

[Stefan Salewski <mail@xxxxxxxxxxxx>]

Am Donnerstag, den 06.11.2008, 08:41 -0500 schrieb Ethan Swint:
> This is 
> standard practice in mechanical CAD packages - which also provide 
> several boolean operations to overlapping geometries - AND, OR, XOR, 
> etc. - which then generate a consolidated geometrical object (in the 
> case of an AND or OR) or multiple objects (in the case of an XOR). 
> 
> This would be a wonderful feature in PCB, but I'm sure it would take a 
> fair effort in the generation of gerber files.
> 
> -Ethan
> 

Is this really related to gerber output?
PCB program already has arbitrary shaped copper polygons.
Your mentioned AND, OR, XOR operations will again generate copper
polygons -- so it should be possible to handle negative stuff inside pcb
program, without concerning gerbers.




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