removed some custom functions in favor of Qt implementations

reworked the ring finder algorithm greatly, tries harder to find the optimal solution

Added last-resort ring draw with quads

Ring draw: maintain separate polygons for the ring circles and draw them separately of the ring fill to prevent artifact lines from being drawn

(0) -300 -100 -30 -10 -4 +4 +10 +30 +100 +300 tip

mercurial