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From:	"Stephan =?utf-8?Q?B=C3=B6ttcher?= (geda AT psjt DOT org) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Date:	Tue, 05 Jan 2016 16:00:05 +0100
In-Reply-To:	<20160105130219.26727.qmail@stuge.se> (Peter Stuge's message of
	"Tue, 5 Jan 2016 14:02:19 +0100")
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"Peter Stuge (peter AT stuge DOT se) [via geda-user AT delorie DOT com]"
>
>> Stephan Böttcher brought up clipper http://angusj.com/delphi/clipper.php
>> a short while ago and started to write on a gerber file clearance checker
>> http://www.psjt.org/code/drc/screenshot.png, have the project here
>> http://www.psjt.org/code/
>
> I don't know clipper - I will take a look at that. Thanks!

This library comes in three implementations: Delphi, C#, C++.   That's
_not_ bindings to a common library but three seperate implementations.

And there are further contributed implementations:  Flash Go Haskell Java
LuaJIT Matlab ObjectiveC perl python ruby.

I wrote (incomplete) Python bindings to the C++ implementation, to see
if that can be used for DRC. 

The library works on integer polygons and uses 128bit integers
internally.

-- 
Stephan

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