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Date:	Sun, 12 Mar 2017 17:59:58 +0100 (CET)
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To:	"Dave McGuire (mcguire AT neurotica DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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From:	gedau AT igor2 DOT repo DOT hu
Subject:	Re: [geda-user] [pcb-rnd] opengl support available, test sprint
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On Sun, 12 Mar 2017, Dave McGuire (mcguire AT neurotica DOT com) [via geda-user AT delorie DOT com] wrote:

> On 03/11/2017 11:44 PM, gedau AT igor2 DOT repo DOT hu wrote:
>> If you haven't downloaded pcb-rnd yet because of missing transparent
>> layers and/or opengl support, this is the best time to get an svn
>> checkout^1! The feature will also be included in the next official
>> release (scheduled to mid April^2) and then probably in the following
>> Debian package.
>
>  It builds and runs flawlessly here.  Great work, thank you!  I'll be working

Thanks for testing!

> on a board layout tonight; I will use this SVN build and keep an eye on 
> things.  Will the resultant .pcb file be readable by mainline pcb?

Yes. If you want to keep compatibility with mainline, you'll need to 
refrain from using some features:

- don't use pin shapes other than those that are also supported by 
mainline (square, octagon, round)

- don't use multiple fonts, mainline doesn't support that

- don't add attribute to random objects, mainline handles attributes only 
for a few things

- keep the number of routing styles exactly 4

- keep number of layers below whatever your copy of mainline is configured 
to handle (probably 16)

- don't do back annotation (back annotated pin swaps, back 
annotated footprint changes)

- and don't forget to select the .pcb file format on "save as"; the 
default is not that, but our native format, lihata.


I am not sure the list is complete. The general rule is the same for
every "alien format" we save or export to (geda/PCB, kicad, fidocadj): 
don't use features the other software doesn't support.

HTH,

Igor2

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