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Ported Polygon->is_valid() and ExPolygon->is_valid()

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Alessandro Ranellucci 2013-08-26 23:27:51 +02:00
parent da0b85c0d9
commit fe42427a54
13 changed files with 37 additions and 54 deletions
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22
lib/Slic3r/Polygon.pm
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@ -68,28 +68,6 @@ sub subdivide {
}
}
# returns false if the polygon is too tight to be printed
sub is_printable {
my $self = shift;
my ($width) = @_;
# try to get an inwards offset
# for a distance equal to half of the extrusion width;
# if no offset is possible, then polyline is not printable.
# we use flow_width here because this has to be consistent
# with the thin wall detection in Layer->make_surfaces,
# otherwise we could lose surfaces as that logic wouldn't
# detect them and we would be discarding them.
my $p = $self->clone;
$p->make_counter_clockwise;
return @{Slic3r::Geometry::Clipper::offset([$p], -$width / 2)} ? 1 : 0;
}
sub is_valid {
my $self = shift;
return @$self >= 3;
}
# for cw polygons this will return convex points!
sub concave_points {
my $self = shift;