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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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18
lib/Slic3r/ExPolygon.pm
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@@ -10,24 +10,6 @@ use Math::Geometry::Voronoi;
use Slic3r::Geometry qw(X Y A B point_in_polygon same_line epsilon);
use Slic3r::Geometry::Clipper qw(union_ex JT_MITER);
sub is_valid {
my $self = shift;
return (!first { !$_->is_valid } @$self)
&& $self->contour->is_counter_clockwise
&& (!first { $_->is_counter_clockwise } @{$self->holes});
}
# returns false if the expolygon 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 expolygon is not printable.
return @{Slic3r::Geometry::Clipper::offset($self, -$width / 2)} ? 1 : 0;
}
sub wkt {
my $self = shift;
return sprintf "POLYGON(%s)",