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Bugfix: some islands having ho holes and contained in holes themselves were ignored

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Alessandro Ranellucci 2011-12-24 11:01:28 +01:00
parent 47df3f8f2d
commit a86bc260e7
4 changed files with 47 additions and 12 deletions
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14
lib/Slic3r/Geometry/Clipper.pm
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@ -5,7 +5,7 @@ use warnings;
require Exporter;
our @ISA = qw(Exporter);
our @EXPORT_OK = qw(explode_expolygon explode_expolygons safety_offset offset
diff_ex diff union_ex intersection_ex PFT_EVENODD JT_MITER JT_ROUND
diff_ex diff union_ex intersection_ex xor_ex PFT_EVENODD JT_MITER JT_ROUND
is_counter_clockwise);
use Math::Clipper 1.02 ':all';
@ -66,4 +66,16 @@ sub intersection_ex {
];
}
sub xor_ex {
my ($subject, $clip, $jointype) = @_;
$jointype = PFT_NONZERO unless defined $jointype;
$clipper->clear;
$clipper->add_subject_polygons($subject);
$clipper->add_clip_polygons($clip);
return [
map Slic3r::ExPolygon->new($_),
@{ $clipper->ex_execute(CT_XOR, $jointype, $jointype) },
];
}
1;