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Date: Tue, 17 Sep 2013 16:15:00 -0400
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Subject: Re: [geda-user] square clearance
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On 9/17/2013 12:30 PM, Kevin Redon wrote:
> Hi,
>
> I have to draw a footprint where the datasheet specifies "prohibited areas", meaning areas where no copper should be, because they use it to route traces.
> The way I do it, is by creating a pad with a thickness of 0 and a clearance corresponding to the area.

For soldermask clearances I have encountered indeterminate behavior from 
the gerber output with 0-width or 0-thickness copper.  Beware.

Can you simply draw a line on silk and understand that that is the 
real-estate claimed by the particular footprint?  PCB can't DRC the 
silk, and the autorouter will ignore it but ... it might work for you if 
you can remember to 'keep out' of it.

Phil