Mail Archives: geda-user/2014/06/23/04:45:40
Am 21.06.2014 14:30, schrieb Peter Clifton:
> I'm a little disappointed to find people using elliptical arcs in the
> wild.
This all is just a hobby for me. :-D I like to design and work with
footprints made with squared paper, a calcultor and vi. - And I like to
make them look 'nice'. ;-) I'm aware, that showing the furrow that goes
around a polarized wire-trough-hole capacitor on silkscreen is
absolutely senseless from the technical point of view, but when I design
some DIY-stuff to publish on my webpage, that may be built by people who
haven't seen a capacitor before and who make their first pcb in the
kitchen, this kind of visualization of the parts may help, for example,
to distinguish between an inductor and a capacitor.
> Am I right in thinking your use cases relate to silkscreen only, not
> tracking or board outline?
Yes.
> Any thoughts?
I only kind of know the gEDA formats. I've read the IDF-specs,
yesterday, and I see that it's not trivial to exchange with them. It
seems difficult to me, to find an import/export concept, that produces
equal gEDA-Data by exporting to IDF an re-importing back to gEDA.
I've often heard of, but don't know Gerber.
Independent of the format, an export should always be possible, because
one can render anything to a simple format like dots connected with
lines (or short arcs with varying radii in IDF), but a re-import would
not result back to the complex format.
Am I seeing this right?
Isn't this rather a general problem, not restricted to elliptical arcs?
Regards,
Philipp
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