Re: gEDA-user: git HEAD PCB now supports user-defined holes in polygons

[Peter Clifton <pcjc2@xxxxxxxxx>]

On Wed, 2010-06-09 at 12:27 +0200, Levente Kovacs wrote:
> On Mon, 07 Jun 2010 00:38:16 +0100
> Peter Clifton <pcjc2@xxxxxxxxx> wrote:
> 
> > git HEAD PCB now supports user-defined holes in polygons
> 
> Hi Peter,
> 
> 
> This feature is cool. Thank you for implementing it.
> 
> I found that it makes a funny thing when you move a cutout corner outside the
> polygon.

Yes, the legality checking of such polygons isn't very good. This stems
from the fact PCB's existing legality checking for user-defined polygons
is really quite poor. (It lets you draw / drag to make polygons it will
then assert() or crash on if built with full debugging).

> I wish we could define pads as polygons, so with this feature any kind of
> pads could be implemented. Solder-mask cut outs would be nice too.

That would be quite neat - it probably requires some file format
additions. For now, I believe (aside from in my "pours" branches where
the feature is disabled), you can draw rectangular pads with the rect
polygon tool.


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!)
Tel: +44 (0)1223 748328 - (Shared lab phone, ask for me)



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