1 files changed, 111 insertions, 0 deletions
diff --git a/xs/src/libslic3r/ClipperUtils.hpp b/xs/src/libslic3r/ClipperUtils.hpp
new file mode 100644
index 000000000..2ab3ff775
--- /dev/null
+++ b/xs/src/libslic3r/ClipperUtils.hpp
@@ -0,0 +1,111 @@
+#ifndef slic3r_ClipperUtils_hpp_
+#define slic3r_ClipperUtils_hpp_
+
+#include <myinit.h>
+#include "clipper.hpp"
+#include "ExPolygon.hpp"
+#include "Polygon.hpp"
+#include "Surface.hpp"
+
+// import these wherever we're included
+using ClipperLib::jtMiter;
+using ClipperLib::jtRound;
+using ClipperLib::jtSquare;
+
+namespace Slic3r {
+
+#define CLIPPER_OFFSET_SCALE 100000.0
+
+//-----------------------------------------------------------
+// legacy code from Clipper documentation
+void AddOuterPolyNodeToExPolygons(ClipperLib::PolyNode& polynode, Slic3r::ExPolygons& expolygons);
+void PolyTreeToExPolygons(ClipperLib::PolyTree& polytree, Slic3r::ExPolygons& expolygons);
+//-----------------------------------------------------------
+
+void Slic3rMultiPoint_to_ClipperPath(const Slic3r::MultiPoint &input, ClipperLib::Path &output);
+template <class T>
+void Slic3rMultiPoints_to_ClipperPaths(const T &input, ClipperLib::Paths &output);
+template <class T>
+void ClipperPath_to_Slic3rMultiPoint(const ClipperLib::Path &input, T &output);
+template <class T>
+void ClipperPaths_to_Slic3rMultiPoints(const ClipperLib::Paths &input, T &output);
+void ClipperPaths_to_Slic3rExPolygons(const ClipperLib::Paths &input, Slic3r::ExPolygons &output);
+
+void scaleClipperPolygons(ClipperLib::Paths &polygons, const double scale);
+
+// offset Polygons
+void offset(const Slic3r::Polygons &polygons, ClipperLib::Paths &retval, const float delta,
+    double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtMiter, 
+    double miterLimit = 3);
+void offset(const Slic3r::Polygons &polygons, Slic3r::Polygons &retval, const float delta,
+    double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtMiter, 
+    double miterLimit = 3);
+
+// offset Polylines
+void offset(const Slic3r::Polylines &polylines, ClipperLib::Paths &retval, const float delta,
+    double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtSquare, 
+    double miterLimit = 3);
+void offset(const Slic3r::Polylines &polylines, Slic3r::Polygons &retval, const float delta,
+    double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtSquare, 
+    double miterLimit = 3);
+void offset(const Slic3r::Surface &surface, Slic3r::Surfaces &retval, const float delta,
+    double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtSquare, 
+    double miterLimit = 3);
+
+void offset_ex(const Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float delta,
+    double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtMiter, 
+    double miterLimit = 3);
+
+void offset2(const Slic3r::Polygons &polygons, ClipperLib::Paths &retval, const float delta1,
+    const float delta2, double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtMiter, 
+    double miterLimit = 3);
+void offset2(const Slic3r::Polygons &polygons, Slic3r::Polygons &retval, const float delta1,
+    const float delta2, double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtMiter, 
+    double miterLimit = 3);
+void offset2_ex(const Slic3r::Polygons &polygons, Slic3r::ExPolygons &retval, const float delta1,
+    const float delta2, double scale = 100000, ClipperLib::JoinType joinType = ClipperLib::jtMiter, 
+    double miterLimit = 3);
+
+template <class T>
+void _clipper_do(ClipperLib::ClipType clipType, const Slic3r::Polygons &subject, 
+    const Slic3r::Polygons &clip, T &retval, bool safety_offset_);
+void _clipper_do(ClipperLib::ClipType clipType, const Slic3r::Polylines &subject, 
+    const Slic3r::Polygons &clip, ClipperLib::Paths &retval, bool safety_offset_);
+void _clipper(ClipperLib::ClipType clipType, const Slic3r::Polygons &subject, 
+    const Slic3r::Polygons &clip, Slic3r::Polygons &retval, bool safety_offset_);
+void _clipper(ClipperLib::ClipType clipType, const Slic3r::Polygons &subject, 
+    const Slic3r::Polygons &clip, Slic3r::ExPolygons &retval, bool safety_offset_);
+void _clipper(ClipperLib::ClipType clipType, const Slic3r::Polylines &subject, 
+    const Slic3r::Polygons &clip, Slic3r::Polylines &retval);
+
+template <class SubjectType, class ResultType>
+void diff(const SubjectType &subject, const Slic3r::Polygons &clip, ResultType &retval, bool safety_offset_ = false);
+
+template <class SubjectType, class ResultType>
+void intersection(const SubjectType &subject, const Slic3r::Polygons &clip, ResultType &retval, bool safety_offset_ = false);
+
+void xor_ex(const Slic3r::Polygons &subject, const Slic3r::Polygons &clip, Slic3r::ExPolygons &retval, 
+    bool safety_offset_ = false);
+
+template <class T>
+void union_(const Slic3r::Polygons &subject, T &retval, bool safety_offset_ = false);
+
+void union_pt(const Slic3r::Polygons &subject, ClipperLib::PolyTree &retval, bool safety_offset_ = false);
+void union_pt_chained(const Slic3r::Polygons &subject, Slic3r::Polygons &retval, bool safety_offset_ = false);
+static void traverse_pt(ClipperLib::PolyNodes &nodes, Slic3r::Polygons &retval);
+
+void simplify_polygons(const Slic3r::Polygons &subject, Slic3r::Polygons &retval, bool preserve_collinear = false);
+void simplify_polygons(const Slic3r::Polygons &subject, Slic3r::ExPolygons &retval, bool preserve_collinear = false);
+
+void safety_offset(ClipperLib::Paths* paths);
+
+/////////////////
+
+#ifdef SLIC3RXS
+SV* polynode_children_2_perl(const ClipperLib::PolyNode& node);
+SV* polynode2perl(const ClipperLib::PolyNode& node);
+#endif
+
+}
+
+#endif