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New ->translate() method for ExPolygon::XS

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This commit is contained in:
Alessandro Ranellucci 2013-07-11 14:13:30 +02:00
parent e0052b01d3
commit 3037b42b47
2 changed files with 27 additions and 4 deletions
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16
xs/src/ExPolygon.hpp
View file

@ -20,6 +20,7 @@ class ExPolygon
Polygons holes;
SV* arrayref();
void scale(double factor);
void translate(double x, double y);
};
#define scale_polygon(poly, factor) \
@ -28,6 +29,12 @@ class ExPolygon
(*pit).y *= factor; \
}
#define translate_polygon(poly, x, y) \
for (Polygon::iterator pit = (poly).begin(); pit != (poly).end(); ++pit) { \
(*pit).x += x; \
(*pit).y += y; \
}
void
ExPolygon::scale(double factor)
{
@ -37,6 +44,15 @@ ExPolygon::scale(double factor)
}
}
void
ExPolygon::translate(double x, double y)
{
translate_polygon(contour, x, y);
for (Polygons::iterator it = holes.begin(); it != holes.end(); ++it) {
translate_polygon(*it, x, y);
}
}
void
perl2polygon(SV* poly_sv, Polygon& poly)
{

15
xs/t/04_expolygon.t
View file

@ -4,7 +4,7 @@ use strict;
use warnings;
use Slic3r::XS;
use Test::More tests => 6;
use Test::More tests => 7;
my $square = [ # ccw
[100, 100],
@ -30,10 +30,17 @@ my $clone = $expolygon->clone;
is_deeply [ @$clone ], [$square, $hole_in_square], 'clone';
# TODO: check that modifying the clone doesn't modify the original one
$expolygon->scale(1.5);
$expolygon->scale(2.5);
is_deeply [ @$expolygon ], [
[map [ 1.5*$_->[0], 1.5*$_->[1] ], @$square],
[map [ 1.5*$_->[0], 1.5*$_->[1] ], @$hole_in_square]
[map [ 2.5*$_->[0], 2.5*$_->[1] ], @$square],
[map [ 2.5*$_->[0], 2.5*$_->[1] ], @$hole_in_square]
], 'scale';
$expolygon->scale(1/2.5);
$expolygon->translate(10, -5);
is_deeply [ @$expolygon ], [
[map [ $_->[0]+10, $_->[1]-5 ], @$square],
[map [ $_->[0]+10, $_->[1]-5 ], @$hole_in_square]
], 'translate';
__END__