Repo created

libs/geometry/region2d/binary_operators.hpp

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+#pragma once
+
+#include "geometry/region2d.hpp"
+
+#include <vector>
+
+namespace m2
+{
+using MultiRegionI = std::vector<RegionI>;
+
+/// @name Next functions work in _append_ mode to the result.
+/// @{
+void IntersectRegions(RegionI const & r1, RegionI const & r2, MultiRegionI & res);
+void DiffRegions(RegionI const & r1, RegionI const & r2, MultiRegionI & res);
+/// @}
+
+MultiRegionI IntersectRegions(RegionI const & r1, MultiRegionI const & r2);
+
+/// Union \a r with \a res and save to \a res.
+void AddRegion(RegionI const & r, MultiRegionI & res);
+
+uint64_t Area(MultiRegionI const & rgn);
+}  // namespace m2