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	Tue, 25 Aug 2015 12:48:38 -0700 (PDT)
Date:	Tue, 25 Aug 2015 21:48:37 +0200
From:	"Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Subject:	Re: [geda-user] Re: off-topic: daydreaming about modularization
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> Imagine if pcb was split up
> * pcb-layout for just doing the GUI layout.
> * pcb2net for people doing back annotation
> * pcb2pdf for people exporting pdfs
> * pcb2ps
> * pcb2gcode
> * pcb2bom
> 
> And now imagine the biggest difference of all. Instead of one giant
> program with poorly defined boundaries between layers you had
> 
> * libpcbfile for moving between a memory representation of a layout
> and the file that stores it
> * libpcbgeo for processing geometric properties
> * libpcbexport for translation to pdf, ps, png, jpeg
> * libpcbnetlist for forward and backward annotation
> * libpcbui for providing the HID interface
Missing pcb2gerber

I think it would work great, a button or menu item to run them is no big deal if anybody want that.

I guess the storage library libpcbfile need functions to walk thru the objects in property value order or access the objects with a particular value. On top of that there would probably be a need for sorting functions. For exporting gerber you would extract the objects with the layer(s) property value for the layer which should be exported. The most critical point would be the interface functions in the storage library libpcbfile to access the objects in the layout.

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