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Date:	Thu, 14 May 2015 10:42:08 +1200
From:	"dark141 AT gmail DOT com" <geda-user AT delorie DOT com>
Subject:	Re: [geda-user] Free rotate and exported centroid (XY) file
	question
To:	geda-user AT delorie DOT com
In-Reply-To:	<201505132137.t4DLb3d3009223@envy.delorie.com> (from
	dj AT delorie DOT com on Thu May 14 09:37:03 2015)
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On 2015-05-14 09:37:03 AM, DJ Delorie wrote:

> Or, you could hack in something to keep a rotation attribute around,
> and update it as needed.  Attributes don't need file format changes at
> least.

BTW, there's an (undocumented) element attribute :

xy-fixed-rotation

which can be used to manually provide a figure to go in the XY file, for when
all else fails.   Theoretically it could (and maybe should) be modified by free (and 90deg)
rotation.

There's also:

xy-centre  

with can be set to the string "origin" to give a sane centre for elements 
with missing pins (i.e. that aren't symetrical, i.e. whose centroid isn't quite the 
intended centre). This is needed for many BGAs and PGAs that have a missing 
pin/ball in the A1 position.

I never checked to see if element attributes can be included in footprints?

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