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#include "MultiPoint.hpp"
#include "BoundingBox.hpp"
namespace Slic3r {
MultiPoint::operator Points() const
{
return this->points;
}
void
MultiPoint::scale(double factor)
{
for (Points::iterator it = points.begin(); it != points.end(); ++it) {
(*it).scale(factor);
}
}
void
MultiPoint::translate(double x, double y)
{
for (Points::iterator it = points.begin(); it != points.end(); ++it) {
(*it).translate(x, y);
}
}
void
MultiPoint::rotate(double angle, const Point ¢er)
{
for (Points::iterator it = points.begin(); it != points.end(); ++it) {
(*it).rotate(angle, center);
}
}
void
MultiPoint::reverse()
{
std::reverse(this->points.begin(), this->points.end());
}
Point
MultiPoint::first_point() const
{
return this->points.front();
}
double
MultiPoint::length() const
{
Lines lines = this->lines();
double len = 0;
for (Lines::iterator it = lines.begin(); it != lines.end(); ++it) {
len += it->length();
}
return len;
}
bool
MultiPoint::is_valid() const
{
return this->points.size() >= 2;
}
int
MultiPoint::find_point(const Point &point) const
{
for (Points::const_iterator it = this->points.begin(); it != this->points.end(); ++it) {
if (it->coincides_with(point)) return it - this->points.begin();
}
return -1; // not found
}
void
MultiPoint::bounding_box(BoundingBox* bb) const
{
*bb = BoundingBox(this->points);
}
Points
MultiPoint::_douglas_peucker(const Points &points, const double tolerance)
{
Points results;
double dmax = 0;
size_t index = 0;
Line full(points.front(), points.back());
for (Points::const_iterator it = points.begin() + 1; it != points.end(); ++it) {
double d = it->distance_to(full);
if (d > dmax) {
index = it - points.begin();
dmax = d;
}
}
if (dmax >= tolerance) {
Points dp0;
dp0.reserve(index + 1);
dp0.insert(dp0.end(), points.begin(), points.begin() + index + 1);
Points dp1 = MultiPoint::_douglas_peucker(dp0, tolerance);
results.reserve(results.size() + dp1.size() - 1);
results.insert(results.end(), dp1.begin(), dp1.end() - 1);
dp0.clear();
dp0.reserve(points.size() - index + 1);
dp0.insert(dp0.end(), points.begin() + index, points.end());
dp1 = MultiPoint::_douglas_peucker(dp0, tolerance);
results.reserve(results.size() + dp1.size());
results.insert(results.end(), dp1.begin(), dp1.end());
} else {
results.push_back(points.front());
results.push_back(points.back());
}
return results;
}
#ifdef SLIC3RXS
void
MultiPoint::from_SV(SV* poly_sv)
{
AV* poly_av = (AV*)SvRV(poly_sv);
const unsigned int num_points = av_len(poly_av)+1;
this->points.resize(num_points);
for (unsigned int i = 0; i < num_points; i++) {
SV** point_sv = av_fetch(poly_av, i, 0);
this->points[i].from_SV_check(*point_sv);
}
}
void
MultiPoint::from_SV_check(SV* poly_sv)
{
if (sv_isobject(poly_sv) && (SvTYPE(SvRV(poly_sv)) == SVt_PVMG)) {
*this = *(MultiPoint*)SvIV((SV*)SvRV( poly_sv ));
} else {
this->from_SV(poly_sv);
}
}
SV*
MultiPoint::to_AV() {
const unsigned int num_points = this->points.size();
AV* av = newAV();
if (num_points > 0) av_extend(av, num_points-1);
for (unsigned int i = 0; i < num_points; i++) {
av_store(av, i, perl_to_SV_ref(this->points[i]));
}
return newRV_noinc((SV*)av);
}
SV*
MultiPoint::to_SV_pureperl() const {
const unsigned int num_points = this->points.size();
AV* av = newAV();
if (num_points > 0) av_extend(av, num_points-1);
for (unsigned int i = 0; i < num_points; i++) {
av_store(av, i, this->points[i].to_SV_pureperl());
}
return newRV_noinc((SV*)av);
}
#endif
}
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