update libslic3r

src/libslic3r/ExPolygonSerialize.hpp

@@ -0,0 +1,28 @@
+#ifndef slic3r_ExPolygonSerialize_hpp_
+#define slic3r_ExPolygonSerialize_hpp_
+
+#include "ExPolygon.hpp"
+#include "Point.hpp" // Cereal serialization of Point
+#include <cereal/cereal.hpp>
+#include <cereal/types/vector.hpp>
+
+/// <summary>
+/// External Cereal serialization of ExPolygons
+/// </summary>
+
+// Serialization through the Cereal library
+#include <cereal/access.hpp>
+namespace cereal {
+
+template<class Archive>
+void serialize(Archive &archive, Slic3r::Polygon &polygon) {
+	archive(polygon.points);
+}
+
+template<class Archive>
+void serialize(Archive &archive, Slic3r::ExPolygon &expoly) {
+	archive(expoly.contour, expoly.holes);
+}
+
+} // namespace Slic3r
+#endif // slic3r_ExPolygonSerialize_hpp_