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52 lines
1.4 KiB
Perl
52 lines
1.4 KiB
Perl
use Test::More;
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use strict;
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use warnings;
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plan tests => 4;
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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 Slic3r;
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use Slic3r::Geometry qw(Z epsilon scale);
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use Slic3r::Test;
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{
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# We want to check what happens when three concentric loops happen
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# to be at the same height, the two external ones being ccw and the other being
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# a hole, thus cw. So we create three cubes, centered around origin, the internal
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# one having reversed normals.
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my $mesh1 = Slic3r::Test::mesh('20mm_cube');
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# center around origin
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my $bb = $mesh1->bounding_box;
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$mesh1->translate(
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-($bb->x_min + $bb->size->x/2),
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-($bb->y_min + $bb->size->y/2), #//
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-($bb->z_min + $bb->size->z/2),
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);
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my $mesh2 = $mesh1->clone;
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$mesh2->scale(1.2);
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my $mesh3 = $mesh2->clone;
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$mesh3->scale(1.2);
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$mesh1->reverse_normals;
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ok $mesh1->volume < 0, 'reverse_normals';
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my $all_meshes = Slic3r::TriangleMesh->new;
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$all_meshes->merge($_) for $mesh1, $mesh2, $mesh3;
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my $loops = $all_meshes->slice_at(Z, 0);
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is scalar(@$loops), 1, 'one expolygon returned';
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is scalar(@{$loops->[0]->holes}), 1, 'expolygon has one hole';
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ok abs(-$loops->[0]->holes->[0]->area - scale($bb->size->x)*scale($bb->size->y)) < epsilon, #))
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'hole has expected size';
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}
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__END__
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