90 lines
2.1 KiB
Perl
90 lines
2.1 KiB
Perl
package Slic3r::Polygon;
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use strict;
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use warnings;
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# a polygon is a closed polyline.
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# if you're asking why there's a Slic3r::Polygon as well
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# as a Slic3r::Polyline::Closed you're right. I plan to
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# ditch the latter and port everything to this class.
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use Slic3r::Geometry qw(polygon_lines polygon_remove_parallel_continuous_edges
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polygon_segment_having_point point_in_polygon move_points rotate_points);
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use Slic3r::Geometry::Clipper qw(JT_MITER);
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# the constructor accepts an array(ref) of points
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sub new {
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my $class = shift;
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my $self;
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if (@_ == 1) {
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$self = [ @{$_[0]} ];
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} else {
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$self = [ @_ ];
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}
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bless $self, $class;
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bless $_, 'Slic3r::Point' for @$self;
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$self;
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}
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# legacy method, to be removed when we ditch Slic3r::Polyline::Closed
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sub closed_polyline {
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my $self = shift;
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return Slic3r::Polyline::Closed->cast($self);
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}
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sub lines {
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my $self = shift;
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return map Slic3r::Line->new($_), polygon_lines($self);
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}
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sub cleanup {
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my $self = shift;
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polygon_remove_parallel_continuous_edges($self);
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}
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sub point_on_segment {
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my $self = shift;
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my ($point) = @_;
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return polygon_segment_having_point($self, $point);
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}
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sub encloses_point {
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my $self = shift;
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my ($point) = @_;
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return point_in_polygon($point, $self);
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}
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sub translate {
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my $self = shift;
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my ($x, $y) = @_;
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@$self = move_points([$x, $y], @$self);
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}
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sub rotate {
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my $self = shift;
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my ($angle, $center) = @_;
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@$self = rotate_points($angle, $center, @$self);
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}
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sub area {
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my $self = shift;
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return Slic3r::Geometry::Clipper::area($self);
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}
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sub safety_offset {
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my $self = shift;
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return (ref $self)->new(Slic3r::Geometry::Clipper::safety_offset([$self])->[0]);
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}
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sub offset {
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my $self = shift;
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my ($distance, $scale, $joinType, $miterLimit) = @_;
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$scale ||= $Slic3r::resolution * 1000000;
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$joinType = JT_MITER if !defined $joinType;
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$miterLimit ||= 2;
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my $offsets = Math::Clipper::offset([$self], $distance, $scale, $joinType, $miterLimit);
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return @$offsets;
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}
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1; |