Re: gEDA-user: PCB gerber export problem - update

[Tomaz Solc <tomaz.solc@xxxxxxxxxx>]

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Hi

> I'm not sure if this is really fair to call a bug in
> CircuitCAM. It's a little ambiguous as to whether
> multiple layers of the same design should have a
> common aperture definitions.

Other gerber software I tried (gerbv and GCPrevue) don't have such
problems and I also seem to be the first to notice this problem. So this
must be specific to the CircuitCAM software (maybe just that version?)
they use at the Faculty.

> pcb's gerber driver that I wrote (before the HID was
> introduced) used a common table for all gerber files
> within the design.  The HID gerber driver doesn't seem
> to do that and I think it should be changed so that it
> does.  The patch makes unique apertures in each file
> but that quickly uses up apertures. The right way to
> do it is to have every file use the same D code for
> the same shape and size.  That's the way it used to
> be. We need to go back to that.

I can try to do that, but it will take some larger changes to the gerber
HID. The aperture list for example is currently built on-the-go by
appending a string. This doesn't allow for a lot of modification.

I tried to keep my current patch as small as possible to keep the number
of new bugs to a minimum :)

Best regards
Tomaz
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