mirror of https://github.com/vitalif/Slic3r
87 lines
2.5 KiB
Perl
87 lines
2.5 KiB
Perl
#!/usr/bin/perl
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use strict;
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use warnings;
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use List::Util qw(first);
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use Slic3r::XS;
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use Test::More tests => 20;
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use constant PI => 4 * atan2(1, 1);
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my $square = [ # ccw
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[100, 100],
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[200, 100],
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[200, 200],
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[100, 200],
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];
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my $polygon = Slic3r::Polygon->new(@$square);
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my $cw_polygon = $polygon->clone;
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$cw_polygon->reverse;
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ok $polygon->is_valid, 'is_valid';
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is_deeply $polygon->pp, $square, 'polygon roundtrip';
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is ref($polygon->arrayref), 'ARRAY', 'polygon arrayref is unblessed';
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isa_ok $polygon->[0], 'Slic3r::Point::Ref', 'polygon point is blessed';
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my $lines = $polygon->lines;
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is_deeply [ map $_->pp, @$lines ], [
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[ [100, 100], [200, 100] ],
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[ [200, 100], [200, 200] ],
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[ [200, 200], [100, 200] ],
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[ [100, 200], [100, 100] ],
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], 'polygon lines';
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is_deeply $polygon->split_at_first_point->pp, [ @$square[0,1,2,3,0] ], 'split_at_first_point';
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is_deeply $polygon->split_at_index(2)->pp, [ @$square[2,3,0,1,2] ], 'split_at_index';
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is_deeply $polygon->split_at_vertex(Slic3r::Point->new(@{$square->[2]}))->pp, [ @$square[2,3,0,1,2] ], 'split_at';
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is $polygon->area, 100*100, 'area';
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ok $polygon->is_counter_clockwise, 'is_counter_clockwise';
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ok !$cw_polygon->is_counter_clockwise, 'is_counter_clockwise';
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{
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my $clone = $polygon->clone;
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$clone->reverse;
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ok !$clone->is_counter_clockwise, 'is_counter_clockwise';
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$clone->make_counter_clockwise;
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ok $clone->is_counter_clockwise, 'make_counter_clockwise';
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$clone->make_counter_clockwise;
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ok $clone->is_counter_clockwise, 'make_counter_clockwise';
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}
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ok ref($polygon->first_point) eq 'Slic3r::Point', 'first_point';
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ok $polygon->contains_point(Slic3r::Point->new(150,150)), 'ccw contains_point';
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ok $cw_polygon->contains_point(Slic3r::Point->new(150,150)), 'cw contains_point';
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{
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my @points = (Slic3r::Point->new(100,0));
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foreach my $i (1..5) {
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my $point = $points[0]->clone;
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$point->rotate(PI/3*$i, [0,0]);
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push @points, $point;
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}
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my $hexagon = Slic3r::Polygon->new(@points);
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my $triangles = $hexagon->triangulate_convex;
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is scalar(@$triangles), 4, 'right number of triangles';
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ok !(defined first { $_->is_clockwise } @$triangles), 'all triangles are ccw';
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}
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{
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is_deeply $polygon->centroid->pp, [150,150], 'centroid';
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}
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# this is not a test: this just demonstrates bad usage, where $polygon->clone gets
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# DESTROY'ed before the derived object ($point), causing bad memory access
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if (0) {
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my $point;
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{
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$point = $polygon->clone->[0];
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}
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$point->scale(2);
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}
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__END__
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