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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] A fileformat library
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> I do not agree that we need a 3D physical model in PCB.  That would be a
> different tool.  PCB as is describes abstract elements of a printed
> cicuit.

I think about pcb as bunch of drawing primitives on different layers. Then there are structure so you could reference some of them at once then for example moving a footprint or a via.


> A Via needs to tell which layers/groups it connects to, and what kind of
> pads there are on those layers.

Then you consider it good to tell which layers it should connect even to it physical end up on a board layer?


> The distinction between Pin and Pad can be removed. A Pad is a Via
> inside an Element with only one layer and no hole.  ...

I also agree distinction between pin, pad and via could be removed.


Nicklas Karlsson

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