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Date: Sun, 15 May 2016 16:56:01 +0200
From: "Bert Timmerman (bert DOT timmerman AT xs4all DOT nl) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Differential pair support
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Stephen Ecob (stephen DOT ecob AT sioi DOT com DOT au) [via geda-user AT delorie DOT com] wrote:
> Here's a basic implementation of differential pair support.
>
> The code in "differential.c" needs to be placed inside action.c
>
> The code is run by typing
>
> :MakeDifferential(TargetWidth,gap)
>
> where TargetWidth is the width of lines to transform and gap is the
> thickness of the gap to insert.
>
> The pictures show a 19 mil trace that is transformed into a
> differential pair with thickness 7 mil and gap 5 mil.  This was done
> by typing
>
> :MakeDifferential(19mil,5mil)
>
> Caveats:
>
> * Doesn't support undo properly. Back up your work before running.
>
> * Doesn't work well with straight line intersections, it creates gaps
> and overhangs at the intersections. The workaround is to use arcs for
> changing direction, as it handles line to arc intersections
> beautifully.
>
> Enjoy!
>    
>
Hi all,

I created a topic branch for this "plugin": home/bert/differential

http://git.geda-project.org/pcb/commit/?h=home/bert/differential&id=715c6c8f94ffca04eaa147782c58baa47e772222

Happy testing ;-)

Kind regards,

Bert Timmerman.