kicad-developers team mailing list archive

[Seth Hillbrand <seth@xxxxxxxxxxxxx>]

Hi Andrew-

At the moment, SWIG doesn't support the nested classes used for
SHAPE_LINE_CHAIN by default [1].  So the polygon data will not be
accessible without someone devoting some time to SWIG-ing the classes.

Best-
Seth

[1] http://www.swig.org/Doc1.3/SWIGPlus.html#SWIGPlus_nested_classes



Am Mo., 27. Aug. 2018 um 04:44 Uhr schrieb Andrew Lutsenko <
anlutsenko@xxxxxxxxx>:

> Hello Kicad team,
>
> I'm writing a pcbnew action plugin that needs to read footprint pad
> coordinates and shape.
> I had no trouble figuring out all shapes except for custom one. It is
> represented by SHAPE_POLY_SET which has a corresponding python type but to
> get actual vertex coordinates you have to either call one of Iterate()
> variants or get polygon outlines with Outline(). They both return objects
> (ITERATOR and SHAPE_LINE_CHAIN) that are pointers and have no useful
> attributes. As far as I understand they just don't have corresponding swig
> bindings so they are not exposed properly in python.
>
> Am I missing some obvious way to read custom pad polygon data in python?
>
> If not, what would it take to add that?
>
> I don't understand much about how swig configuration works but cursory
> glance at Kicad source suggests that there needs to be an import for
> shape_line_chain.h in common/swig/kicad.i
>
> If you are curious about what the plugin does, here are some of it's
> results, generated from Kicad demos:
> http://plugindemo.bitballoon.com/1/
> http://plugindemo.bitballoon.com/2/ <-- this one has a solder bridge with
> custom shape pads which is not rendered
> http://plugindemo.bitballoon.com/3/
>
> Above links are short lived.
>
> Regards,
> Andrew
>
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