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Date:	Tue, 25 Aug 2015 22:18:45 +0000
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Subject:	Re: [geda-user] SQL PCB file format
From:	"Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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On Tue, Aug 25, 2015 at 9:58 PM, Britton Kerin
(britton DOT kerin AT gmail DOT com) [via geda-user AT delorie DOT com]
<geda-user AT delorie DOT com> wrote:
> On Tue, Aug 25, 2015 at 1:02 PM, Evan Foss (evanfoss AT gmail DOT com) [via
> geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
>> On Tue, Aug 25, 2015 at 4:37 PM, Peter Stuge (peter AT stuge DOT se) [via
>> geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
>>> Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com] wrote:
>>>> The problem that has been consuming my mind or a few months now is
>>>> how all of this should be represented in memory.
>>>
>>> Linked lists. The overhead is small.
>>
>> Yes but you want the lists to be meaningful. Just having a list of
>> elements on a layer is not enough. The way you store the info makes
>> moving footprints or moving traces more straight forward to implement.
>
> Igor is already moving things from script:
>
>    http://repo.hu/projects/pcb-rnd/gpmi/rosetta/30_move/index.html

I was not talking about scripts. PCB's concept of a layout is a mess
that is what I was hoping to fix by changing file format which also
has it's limitations.

> I also really wish file format's could keep on being text.
> Internal SQL sure but I don't see the point of a not-human-readable
> format.  Its not
> as if the size or parsing time is likely to be significant.

Plus on more than a few hard to reproduce occasions I have had to hand
edit little things.

> Now I'm going back to my strategy of not caring what happens to gEDA
> and just using my existing version.

Arg.

> Britton



-- 
Home
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Work
http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/

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