90 lines
2.3 KiB
Perl
90 lines
2.3 KiB
Perl
use Test::More;
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use strict;
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use warnings;
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plan tests => 6;
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BEGIN {
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use FindBin;
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use lib "$FindBin::Bin/../lib";
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use local::lib "$FindBin::Bin/../local-lib";
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}
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use List::Util qw(sum);
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use Slic3r;
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use Slic3r::Geometry::Clipper qw(intersection_ex union_ex diff_ex diff_pl);
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{
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my $square = [ # ccw
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[10, 10],
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[20, 10],
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[20, 20],
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[10, 20],
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];
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my $hole_in_square = [ # cw
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[14, 14],
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[14, 16],
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[16, 16],
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[16, 14],
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];
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my $square2 = [ # ccw
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[5, 12],
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[25, 12],
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[25, 18],
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[5, 18],
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];
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my $intersection = intersection_ex([ $square, $hole_in_square ], [ $square2 ]);
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is sum(map $_->area, @$intersection), Slic3r::ExPolygon->new(
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[
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[20, 18],
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[10, 18],
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[10, 12],
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[20, 12],
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],
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[
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[14, 16],
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[16, 16],
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[16, 14],
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[14, 14],
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],
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)->area, 'hole is preserved after intersection';
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}
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#==========================================================
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{
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my $contour1 = [ [0,0], [40,0], [40,40], [0,40] ]; # ccw
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my $contour2 = [ [10,10], [30,10], [30,30], [10,30] ]; # ccw
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my $hole = [ [15,15], [15,25], [25,25], [25,15] ]; # cw
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my $union = union_ex([ $contour1, $contour2, $hole ]);
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is_deeply [ map $_->pp, @$union ], [[ [ [40,40], [0,40], [0,0], [40,0] ] ]],
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'union of two ccw and one cw is a contour with no holes';
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my $diff = diff_ex([ $contour1, $contour2 ], [ $hole ]);
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is sum(map $_->area, @$diff),
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Slic3r::ExPolygon->new([ [40,40], [0,40], [0,0], [40,0] ], [ [15,25], [25,25], [25,15], [15,15] ])->area,
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'difference of a cw from two ccw is a contour with one hole';
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}
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#==========================================================
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{
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my $square = Slic3r::Polygon->new_scale( # ccw
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[10, 10],
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[20, 10],
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[20, 20],
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[10, 20],
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);
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my $square_pl = $square->split_at_first_point;
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my $res = diff_pl([$square_pl], []);
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is scalar(@$res), 1, 'no-op diff_pl returns the right number of polylines';
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isa_ok $res->[0], 'Slic3r::Polyline', 'no-op diff_pl result';
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is scalar(@{$res->[0]}), scalar(@$square_pl), 'no-op diff_pl returns the unmodified input polyline';
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}
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__END__
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