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The inwards move after an external loop was still randomly generated outwards in some cases. Perimeters are now generated with a distinct iterator for each slice. Nested islands are also correctly supported too. Various regression tests included. #2253

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Alessandro Ranellucci 2015-01-08 15:19:56 +01:00
parent af92e3d49e
commit 406d045ced
7 changed files with 183 additions and 70 deletions
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7
lib/Slic3r/GCode.pm
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@ -207,8 +207,11 @@ sub extrude_loop {
my $last_path_polyline = $paths[-1]->polyline;
# detect angle between last and first segment
# the side depends on the original winding order of the polygon (left for contours, right for holes)
my @points = $was_clockwise ? (-2, 1) : (1, -2);
my $angle = Slic3r::Geometry::angle3points(@$last_path_polyline[0, @points]) / 3;
my @points = ($paths[0][1], $paths[-1][-2]);
@points = reverse @points if $was_clockwise;
my $angle = $paths[0]->first_point->ccw_angle(@points) / 3;
# turn left if contour, turn right if hole
$angle *= -1 if $was_clockwise;
# create the destination point along the first segment and rotate it