Re: gEDA-user: PCB: how to clear soldermask from entire footprint

[Karel Kulhavy <clock@twibright.com>]

On Sat, Nov 06, 2004 at 09:21:39AM -0500, DJ Delorie wrote:
> 
> > What if another 2 layers were added to PCB. When someone put a
> > rectangle there, it would be excluded from the mask?
> 
> To do it right, we'd have to add a LOT more than 2 layers[*], and
> redesign the whole layer management scheme in pcb.  I've mentioned it
> to the other pcb developers but no actual work has been planned yet.
> 
> I'd rather not just hack yet another layer-fiddling feature in like we
> did for outlines.
> 
> [*] layers for masks, silks, keep-outs, outline, fab, place, paste, etc.

What is a keep-out?

Cl<