Hi Clemens, Clemens Koller writes: > Hi, Mathias! > > On 2016-01-14 20:06, Mathias Grimmberger wrote: > > In the current drawing code in some places we build polygons > > approximating the corner quarter circles, e.g. using 8 segments. For a > > very small radius there will be segments of zero length in that > > approximation. > > Can you point me to some code where this is done? > Just want to see and understand it.
Hmm, there are not as many places as I seemed to remember, the legacy drawing uses proper arcs. In board_items_to_polygon_shape_transform.cpp, function D_PAD::TransformShapeWithClearanceToPolygon(), the cases for PAD_SHAPE_TRAPEZOID, PAD_SHAPE_RECT and PAD_SHAPE_ROUNDRECT: the calls to "outline.inflate()". In common_plotGERBER_functions.cpp, function GERBER_PLOTTER::FlashPadRoundRect(), the case for pads rotated not by 0, 90, 180 or 270 deg: in the for loop "for( int rot = 100; rot < 900; rot += 100 )". In file pns_router.cpp, function PNS_ROUTER::syncPad(), a SHAPE_CONVEX needs to be constructed, which will need to approximate the round corners - this is not implemented yet. MGri _______________________________________________ Mailing list: https://launchpad.net/~kicad-developers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-developers More help : https://help.launchpad.net/ListHelp
