1 files changed, 41 insertions, 0 deletions
diff --git a/src/libslic3r/ExPolygonCollection.hpp b/src/libslic3r/ExPolygonCollection.hpp
new file mode 100644
index 000000000..4c181cd6a
--- /dev/null
+++ b/src/libslic3r/ExPolygonCollection.hpp
@@ -0,0 +1,41 @@
+#ifndef slic3r_ExPolygonCollection_hpp_
+#define slic3r_ExPolygonCollection_hpp_
+
+#include "libslic3r.h"
+#include "ExPolygon.hpp"
+#include "Line.hpp"
+#include "Polyline.hpp"
+
+namespace Slic3r {
+
+class ExPolygonCollection;
+typedef std::vector<ExPolygonCollection> ExPolygonCollections;
+
+class ExPolygonCollection
+{
+    public:
+    ExPolygons expolygons;
+    
+    ExPolygonCollection() {};
+    ExPolygonCollection(const ExPolygon &expolygon);
+    ExPolygonCollection(const ExPolygons &expolygons) : expolygons(expolygons) {};
+    operator Points() const;
+    operator Polygons() const;
+    operator ExPolygons&();
+    void scale(double factor);
+    void translate(double x, double y);
+    void rotate(double angle, const Point &center);
+    template <class T> bool contains(const T &item) const;
+    bool contains_b(const Point &point) const;
+    void simplify(double tolerance);
+    Polygon convex_hull() const;
+    Lines lines() const;
+    Polygons contours() const;
+    void append(const ExPolygons &expolygons);
+};
+
+extern BoundingBox get_extents(const ExPolygonCollection &expolygon);
+
+}
+
+#endif