MRMesh/MRContoursCut.h

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#pragma once
 
#include "MRBitSet.h"
#include "MRAffineXf3.h"
#include "MROneMeshContours.h"
 
namespace MR
{
 
struct NewEdgesMap
{
    UndirectedEdgeBitSet splitEdges;
 
    HashMap<UndirectedEdgeId, int> map;
};
 
struct CutMeshParameters
{
    const SortIntersectionsData* sortData{nullptr};
    FaceMap* new2OldMap{nullptr};
    enum class ForceFill
    {
        None, //< if bad faces occur does not fill anything
        Good, //< fills all faces except bad ones
        All   //< fills all faces with bad ones, but on bad faces triangulation can also be bad (may have self-intersections or tunnels)
    } forceFillMode{ ForceFill::None };
 
    NewEdgesMap* new2oldEdgesMap{ nullptr };
};
 
struct CutMeshResult
{
    std::vector<EdgePath> resultCut;
    FaceBitSet fbsWithContourIntersections;
};
 
MRMESH_API CutMeshResult cutMesh( Mesh& mesh, const OneMeshContours& contours, const CutMeshParameters& params = {} );
 
 
[[nodiscard]] MRMESH_API Expected<FaceBitSet> cutMeshByContour( Mesh& mesh, const Contour3f& contour, const AffineXf3f& xf = {} );
 
[[nodiscard]] MRMESH_API Expected<FaceBitSet> cutMeshByContours( Mesh& mesh, const Contours3f& contours, const AffineXf3f& xf = {} );
 
 
struct CutByProjectionSettings
{
    Vector3f direction;
 
    const AffineXf3f* cont2mesh{ nullptr };
};
 
[[nodiscard]] MRMESH_API Expected<std::vector<EdgePath>> cutMeshByProjection( Mesh& mesh, const Contours3f& contours, const CutByProjectionSettings& settings );
 
[[nodiscard]]
MRMESH_API Expected<OneMeshContours> convertMeshTriPointsSurfaceOffsetToMeshContours( const Mesh& mesh, const std::vector<MeshTriPoint>& surfaceLine,
    float offset, SearchPathSettings searchSettings = {} );
 
[[nodiscard]]
MRMESH_API Expected<OneMeshContours> convertMeshTriPointsSurfaceOffsetToMeshContours( const Mesh& mesh, const std::vector<MeshTriPoint>& surfaceLine,
    const std::function<float(int)>& offsetAtPoint, SearchPathSettings searchSettings = {});
 
} //namespace MR