Re: gEDA-user: remove copper

[Peter Clifton <pcjc2@xxxxxxxxx>]

On Thu, 2008-11-06 at 11:12 -0500, DJ Delorie wrote:
> > After I have made a ground plane, how can I remove a little bit of
> > copper, like a square shape ?
> 
> Some ways:
> 
> 1. Draw lines that clear the copper, but this leaves lines around.
> 
> 2. Add more corners to go around the hole.
> 
> 3. split the polygon into two, one on each side of the hole.
> 
> PCB doesn't have a "negative copper" tool, if that's what you're
> asking for.

I have a patch which adds that functionality (it mis-uses the "hole"
flag to indicate that a polygon isn't drawn, and uses it to clear away
other polygons... made vague sense to me at the time, its a "hole" in
the polygon, but perhaps I ought to make a new flag if this feature were
ever merged)

-- 
Peter Clifton

Electrical Engineering Division,
Engineering Department,
University of Cambridge,
9, JJ Thomson Avenue,
Cambridge
CB3 0FA

Tel: +44 (0)7729 980173 - (No signal in the lab!)



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