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Date: Sat, 7 Jul 2012 12:07:15 +0200
From: Levente Kovacs <leventelist AT gmail DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Moving holes in polygons
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On Wed, 04 Jul 2012 23:47:51 +0200
Kai-Martin Knaak <kmk AT familieknaak DOT de> wrote:

> "Check-Polygons" from the settings menu hides everything except
> polygons. So you can easily select and delete them all. 

Yes. Be careful, even the tracks, and components are hidden, they can be
selected and deleted.
 
> BTW, I habitually put polygons in a separate layer. With larger
> layout or less than premium hardware, polygon calculation tends to
> affect pcb performance. While there is no straight GUI option to not
> update polygons, the separate layers allows for a work around: They
> can be put in a layer group of their own (File -> Preferences ->
> Layers -> Groups). Once the work on tracks and footprints is done, I
> reunite polygon layers with the copper layer they belong to. There is
> no designated button to recalculate-polygons. But a "save" followed
> by a "revert" will do the trick.

Nice catch! I gave up using PCB's group functionality, but I might consider to
try this.

-- 
Levente Kovacs
CTO, CSO
http://levente.logonex.eu