56 lines
1.4 KiB
Perl
56 lines
1.4 KiB
Perl
package Slic3r::ExtrusionPath::Collection;
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use Moo;
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use XXX;
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has 'paths' => (
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is => 'rw',
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#isa => 'ArrayRef[Slic3r::ExtrusionPath]',
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default => sub { [] },
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);
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sub add {
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my $self = shift;
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my ($path) = @_;
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push @{$self->paths}, $path;
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}
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sub endpoints {
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my $self = shift;
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my ($as_arrayref) = @_;
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return map $_->endpoints($as_arrayref), @{$self->paths};
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}
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sub shortest_path {
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my $self = shift;
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my ($start_near) = @_;
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# get point as arrayref
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$start_near = $start_near->p if $start_near && ref $start_near ne 'ARRAY';
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my @paths = ();
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my $start_at;
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CYCLE: while (@{$self->paths}) {
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# find nearest point
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$start_at = Slic3r::Point->cast(Slic3r::Geometry::nearest_point($start_near, [ $self->endpoints(1) ]));
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# loop through paths to find the one that starts or ends at the point found
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PATH: for (my $i = 0; $i <= $#{$self->paths}; $i++) {
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if ($start_at->id eq $self->paths->[$i]->points->[0]->id) {
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push @paths, splice @{$self->paths}, $i, 1;
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} elsif ($start_at->id eq $self->paths->[$i]->points->[-1]->id) {
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$self->paths->[$i]->reverse;
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push @paths, splice @{$self->paths}, $i, 1;
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} else {
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next PATH;
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}
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$start_near = $paths[-1]->points->[-1]->p;
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next CYCLE;
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}
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}
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return @paths;
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}
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1;
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