MRMeshTopologyDiff.h

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#pragma once
 
#include "MRMeshTopology.h"
#include "MRphmap.h"
 
namespace MR
{
 

class MeshTopologyDiff
{
public:
    MeshTopologyDiff() = default;

    MRMESH_API MeshTopologyDiff( const MeshTopology & from, const MeshTopology & to );

    MRMESH_API void applyAndSwap( MeshTopology & t );

    [[nodiscard]] bool any() const { return !changedEdges_.empty(); }

    [[nodiscard]] MRMESH_API size_t heapBytes() const;
 
private:
    size_t toEdgesSize_ = 0;
    HashMap<EdgeId, MeshTopology::HalfEdgeRecord> changedEdges_;
};
 
}