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Ported nearest_point() and nearest_point_index()

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This commit is contained in:
Alessandro Ranellucci 2013-08-27 00:52:20 +02:00
parent f1e9216c70
commit b11b595c97
18 changed files with 79 additions and 69 deletions
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33
xs/src/Point.cpp
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@ -1,4 +1,5 @@
#include "Point.hpp"
#include <math.h>
namespace Slic3r {
@ -31,6 +32,38 @@ Point::coincides_with(const Point* point) const
return this->x == point->x && this->y == point->y;
}
int
Point::nearest_point_index(const Points points) const
{
int idx = -1;
long distance = -1;
for (Points::const_iterator it = points.begin(); it != points.end(); ++it) {
/* If the X distance of the candidate is > than the total distance of the
best previous candidate, we know we don't want it */
long d = pow(this->x - (*it).x, 2);
if (distance != -1 && d > distance) continue;
/* If the Y distance of the candidate is > than the total distance of the
best previous candidate, we know we don't want it */
d += pow(this->y - (*it).y, 2);
if (distance != -1 && d > distance) continue;
idx = it - points.begin();
distance = d;
if (distance < EPSILON) break;
}
return idx;
}
Point*
Point::nearest_point(Points points) const
{
return &(points.at(this->nearest_point_index(points)));
}
SV*
Point::to_SV_pureperl() {
AV* av = newAV();