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Bugfix: Douglas-Peucker used perpendicular distance instead of shortest distance, thus clipping more than it should. #2474

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This commit is contained in:
Alessandro Ranellucci 2015-01-03 15:03:53 +01:00
parent 69da8b0999
commit d8be67c28b
7 changed files with 64 additions and 5 deletions
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19
xs/t/03_point.t
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@ -4,7 +4,7 @@ use strict;
use warnings;
use Slic3r::XS;
use Test::More tests => 15;
use Test::More tests => 22;
my $point = Slic3r::Point->new(10, 15);
is_deeply [ @$point ], [10, 15], 'point roundtrip';
@ -30,13 +30,28 @@ ok !$point->coincides_with($point2), 'coincides_with';
ok $nearest->coincides_with($point2), 'nearest_point';
}
{
my $line = Slic3r::Line->new([0,0], [100,0]);
is +Slic3r::Point->new(0,0)->distance_to_line($line), 0, 'distance_to_line()';
is +Slic3r::Point->new(100,0)->distance_to_line($line), 0, 'distance_to_line()';
is +Slic3r::Point->new(50,0)->distance_to_line($line), 0, 'distance_to_line()';
is +Slic3r::Point->new(150,0)->distance_to_line($line), 50, 'distance_to_line()';
is +Slic3r::Point->new(0,50)->distance_to_line($line), 50, 'distance_to_line()';
is +Slic3r::Point->new(50,50)->distance_to_line($line), 50, 'distance_to_line()';
}
{
my $line = Slic3r::Line->new([50,50], [125,-25]);
is +Slic3r::Point->new(100,0)->distance_to_line($line), 0, 'distance_to_line()';
}
{
my $line = Slic3r::Line->new(
[18335846,18335845],
[18335846,1664160],
);
$point = Slic3r::Point->new(1664161,18335848);
is $point->distance_to_line($line), 16671685, 'distance_to_line() does not overflow';
is $point->perp_distance_to_line($line), 16671685, 'perp_distance_to_line() does not overflow';
}
{