mirror of
https://github.com/SoftFever/OrcaSlicer.git
synced 2025-10-30 20:21:12 -06:00
125 lines
No EOL
3.4 KiB
Perl
125 lines
No EOL
3.4 KiB
Perl
package Slic3r::Polygon;
|
|
use strict;
|
|
use warnings;
|
|
|
|
# a polygon is a closed polyline.
|
|
use parent 'Slic3r::Polyline';
|
|
|
|
use Slic3r::Geometry qw(polygon_lines polygon_remove_parallel_continuous_edges
|
|
scale polygon_remove_acute_vertices polygon_segment_having_point point_in_polygon);
|
|
use Slic3r::Geometry::Clipper qw(JT_MITER);
|
|
|
|
sub lines {
|
|
my $self = shift;
|
|
my @lines = polygon_lines($self);
|
|
bless $_, 'Slic3r::Line' for @lines;
|
|
return @lines;
|
|
}
|
|
|
|
sub is_counter_clockwise {
|
|
my $self = shift;
|
|
return Math::Clipper::is_counter_clockwise($self);
|
|
}
|
|
|
|
sub make_counter_clockwise {
|
|
my $self = shift;
|
|
$self->reverse if !$self->is_counter_clockwise;
|
|
}
|
|
|
|
sub make_clockwise {
|
|
my $self = shift;
|
|
$self->reverse if $self->is_counter_clockwise;
|
|
}
|
|
|
|
sub merge_continuous_lines {
|
|
my $self = shift;
|
|
|
|
polygon_remove_parallel_continuous_edges($self);
|
|
bless $_, 'Slic3r::Point' for @$self;
|
|
}
|
|
|
|
sub remove_acute_vertices {
|
|
my $self = shift;
|
|
polygon_remove_acute_vertices($self);
|
|
bless $_, 'Slic3r::Point' for @$self;
|
|
}
|
|
|
|
sub point_on_segment {
|
|
my $self = shift;
|
|
my ($point) = @_;
|
|
return polygon_segment_having_point($self, $point);
|
|
}
|
|
|
|
sub encloses_point {
|
|
my $self = shift;
|
|
my ($point) = @_;
|
|
return point_in_polygon($point, $self);
|
|
}
|
|
|
|
sub area {
|
|
my $self = shift;
|
|
return Slic3r::Geometry::Clipper::area($self);
|
|
}
|
|
|
|
sub safety_offset {
|
|
my $self = shift;
|
|
return (ref $self)->new(Slic3r::Geometry::Clipper::safety_offset([$self])->[0]);
|
|
}
|
|
|
|
sub offset {
|
|
my $self = shift;
|
|
my ($distance, $scale, $joinType, $miterLimit) = @_;
|
|
$scale ||= $Slic3r::scaling_factor * 1000000;
|
|
$joinType = JT_MITER if !defined $joinType;
|
|
$miterLimit ||= 2;
|
|
|
|
my $offsets = Math::Clipper::offset([$self], $distance, $scale, $joinType, $miterLimit);
|
|
return map Slic3r::Polygon->new($_), @$offsets;
|
|
}
|
|
|
|
# this method subdivides the polygon segments to that no one of them
|
|
# is longer than the length provided
|
|
sub subdivide {
|
|
my $self = shift;
|
|
my ($max_length) = @_;
|
|
|
|
for (my $i = 0; $i <= $#$self; $i++) {
|
|
my $len = Slic3r::Geometry::line_length([ $self->[$i-1], $self->[$i] ]);
|
|
my $num_points = int($len / $max_length) - 1;
|
|
$num_points++ if $len % $max_length;
|
|
|
|
# $num_points is the number of points to add between $i-1 and $i
|
|
next if $num_points == -1;
|
|
my $spacing = $len / ($num_points + 1);
|
|
my @new_points = map Slic3r::Point->new($_),
|
|
map Slic3r::Geometry::point_along_segment($self->[$i-1], $self->[$i], $spacing * $_),
|
|
1..$num_points;
|
|
|
|
splice @$self, $i, 0, @new_points;
|
|
$i += @new_points;
|
|
}
|
|
}
|
|
|
|
# returns false if the polyline is too tight to be printed
|
|
sub is_printable {
|
|
my $self = shift;
|
|
my ($flow_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 $p->offset(scale($flow_width || $Slic3r::flow->width) / 2) ? 1 : 0;
|
|
}
|
|
|
|
sub is_valid {
|
|
my $self = shift;
|
|
return @$self >= 3;
|
|
}
|
|
|
|
1; |