They are used for chamfered round rect pads, and can be used for custom shaped pads.
No actual change currently, but the shape rotation of custom pads and chamfered rr pads
can be now used in gerber plots.
This will later enable sorting the items for efficiency, which will then
facilitate things that would otherwise be impossibly slow (e.g.
switching pens)
plotter.h contains now only a header common to all plotters.
The code does not actually change, but it allows modifying a specific plotter
without recompiling most of kicad files.
jean-pierre charras
Wayne Stambaugh
Alexis Lockwood
Jeff Young
Marek Roszko