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Date: Sun, 15 Jan 2012 15:57:55 +1100
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Subject: Re: [geda-user] Standalone DRC for Gerber files
From: Stephen Ecob <stephen DOT ecob AT sioi DOT com DOT au>
To: geda-user AT delorie DOT com
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On Sun, Jan 15, 2012 at 2:44 AM, Dan McMahill <dan AT mcmahill DOT net> wrote:
> On 1/13/2012 6:09 PM, Stephen Ecob wrote:
>> On Sat, Jan 14, 2012 at 3:04 AM, Peter Stuge <peter AT stuge DOT se> wrote:
>>> Colin D Bennett wrote:
>>>> Ideally.... it would be REALLY awesome if there were a way to import
>>>> Gerbers into pcb
>>>
>>> Do gerbers have traces and widths, or only outlines?
>>
>> Traces and widths, the same as PCB.
>>
>> There's a fairly straight forward mapping between PCB primitives and
>> Gerber primitives, it's pretty much one to one.
>>
>
> but there are also polygons in RS-274X.  There are also codes which
> invert the sense of the output, so for example you can represent a large
> copper area with a funny cut through it by defining a polygon and then
> erasing the cut area.  Those don't quite map directly to pcb.
>
> There are also aperture macros that can define things like thermals and
> other more complex geometries.
>
> I agree that a basic import that gets you part way there is probably not
> too hard.  To get all the way there is likely a pain.

Sure.  Gerber sets with blind and buried vias would also cause pain -
but an importer that could handle reasonably vanilla flavoured Gerbers
would be cool !



-- 
Stephen Ecob
Silicon On Inspiration
Sydney Australia
www.sioi.com.au