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Date: Tue, 3 Jul 2012 15:27:47 -0700
From: Colin D Bennett <colin AT gibibit DOT com>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Moving holes in polygons
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On Tue, 3 Jul 2012 11:26:44 -0400
Nathan Stewart <therealnathanstewart AT gmail DOT com> wrote:

> Hence the paraphrase - what's the best way to flood the unused
> portions of the board with grounded copper, minimizing the amount
> of rework necessary with layout changes.
> 
> On Tue, Jul 3, 2012 at 10:52 AM, DJ Delorie <dj AT delorie DOT com>
> wrote:
> >
> > Ah, you want to move just the hole.  I'm not sure you can do
> > that.

What I usually do, as suggested a while back by Kai-Martin, is to
route the entire board with regular tracks (no polygon floods)
including ground and everything.  Only once the layout is
electrically complete (all nets routed) do you lay down the polygon
flood.  This way, the polygon is "optional" and "disposable".
Getting good polygon flooding is really clumsy in pcb right now,
and I usually have to insert multiple smaller polygons in order to
get it to fill everything in, since pcb's "unconnected copper"
filter chops each polygon into a single connected polygon of its
own choosing.

Regards,
Colin