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Port offset_ex() and offset2_ex() to XS

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This commit is contained in:
Alessandro Ranellucci 2013-07-16 20:09:53 +02:00
parent 9458c7db97
commit 898007fc36
20 changed files with 4349 additions and 52 deletions
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102
xs/src/ClipperUtils.hpp Normal file
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#ifndef slic3r_ClipperUtils_hpp_
#define slic3r_ClipperUtils_hpp_
extern "C" {
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#include "ppport.h"
}
#include "clipper.hpp"
namespace Slic3r {
void
ClipperPolygon_to_Slic3rPolygon(ClipperLib::Polygon &input, Slic3r::Polygon &output)
{
output.points.clear();
for (ClipperLib::Polygon::iterator pit = input.begin(); pit != input.end(); ++pit) {
output.points.push_back(Slic3r::Point( (*pit).X, (*pit).Y ));
}
}
//-----------------------------------------------------------
// legacy code from Clipper documentation
void AddOuterPolyNodeToExPolygons(ClipperLib::PolyNode& polynode, Slic3r::ExPolygons& expolygons)
{
size_t cnt = expolygons.size();
expolygons.resize(cnt + 1);
ClipperPolygon_to_Slic3rPolygon(polynode.Contour, expolygons[cnt].contour);
expolygons[cnt].holes.resize(polynode.ChildCount());
for (int i = 0; i < polynode.ChildCount(); ++i)
{
ClipperPolygon_to_Slic3rPolygon(polynode.Childs[i]->Contour, expolygons[cnt].holes[i]);
//Add outer polygons contained by (nested within) holes ...
for (int j = 0; j < polynode.Childs[i]->ChildCount(); ++j)
AddOuterPolyNodeToExPolygons(*polynode.Childs[i]->Childs[j], expolygons);
}
}
void PolyTreeToExPolygons(ClipperLib::PolyTree& polytree, Slic3r::ExPolygons& expolygons)
{
expolygons.clear();
for (int i = 0; i < polytree.ChildCount(); ++i)
AddOuterPolyNodeToExPolygons(*polytree.Childs[i], expolygons);
}
//-----------------------------------------------------------
void
Slic3rPolygon_to_ClipperPolygon(Slic3r::Polygon &input, ClipperLib::Polygon &output)
{
output.clear();
for (Slic3r::Points::iterator pit = input.points.begin(); pit != input.points.end(); ++pit) {
output.push_back(ClipperLib::IntPoint( (*pit).x, (*pit).y ));
}
}
void
Slic3rPolygons_to_ClipperPolygons(Slic3r::Polygons &input, ClipperLib::Polygons &output)
{
output.clear();
for (Slic3r::Polygons::iterator it = input.begin(); it != input.end(); ++it) {
ClipperLib::Polygon p;
Slic3rPolygon_to_ClipperPolygon(*it, p);
output.push_back(p);
}
}
void
ClipperPolygons_to_Slic3rExPolygons(ClipperLib::Polygons &input, Slic3r::ExPolygons &output)
{
// init Clipper
ClipperLib::Clipper clipper;
clipper.Clear();
// perform union
clipper.AddPolygons(input, ClipperLib::ptSubject);
ClipperLib::PolyTree* polytree = new ClipperLib::PolyTree();
clipper.Execute(ClipperLib::ctUnion, *polytree, ClipperLib::pftEvenOdd, ClipperLib::pftEvenOdd); // offset results work with both EvenOdd and NonZero
// write to ExPolygons object
output.clear();
PolyTreeToExPolygons(*polytree, output);
delete polytree;
}
void
scaleClipperPolygons(ClipperLib::Polygons &polygons, const double scale)
{
for (ClipperLib::Polygons::iterator it = polygons.begin(); it != polygons.end(); ++it) {
for (ClipperLib::Polygon::iterator pit = (*it).begin(); pit != (*it).end(); ++pit) {
(*pit).X *= scale;
(*pit).Y *= scale;
}
}
}
}
#endif