MeshNodeSearcher.h

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#pragma once
 
#include <memory>
#include <vector>
 
#include "BaseLib/CompilerWorkarounds.h"
#include "GeoLib/Grid.h"
#include "MathLib/Point3dWithID.h"
#include "MeshGeoToolsLib/SearchAllNodes.h"
#include "MeshGeoToolsLib/SearchLength.h"
 
// forward declaration
namespace GeoLib
{
struct GeoObject;
class Point;
class Polyline;
class Surface;
}
 
namespace MeshLib
{
class Mesh;
class Node;
}
 
namespace MeshGeoToolsLib
{
class MeshNodesOnPoint;
class MeshNodesAlongPolyline;
class MeshNodesAlongSurface;
}
 
namespace MeshGeoToolsLib
{

class MeshNodeSearcher
{
public:
    MeshNodeSearcher(MeshLib::Mesh const& mesh,
                     std::unique_ptr<MeshGeoToolsLib::SearchLength>&&
                         search_length_algorithm,
                     SearchAllNodes search_all_nodes);
 
    virtual ~MeshNodeSearcher();

    std::vector<std::size_t> getMeshNodeIDs(
        GeoLib::GeoObject const& geoObj) const;

    std::vector<std::size_t> getMeshNodeIDs(
        std::vector<MathLib::Point3dWithID*> const& points) const;

    OGS_NO_DANGLING
    static MeshNodeSearcher const&
    getMeshNodeSearcher(MeshLib::Mesh const& mesh,
                        std::unique_ptr<MeshGeoToolsLib::SearchLength>&&
                            search_length_algorithm);
 
private:
    MeshLib::Mesh const& _mesh;
    GeoLib::Grid<MeshLib::Node> _mesh_grid;
    std::unique_ptr<MeshGeoToolsLib::SearchLength> _search_length_algorithm;
    SearchAllNodes _search_all_nodes;
    // with newer compiler we can omit to use a pointer here
    mutable std::vector<MeshNodesOnPoint*> _mesh_nodes_on_points;
    mutable std::vector<MeshNodesAlongPolyline*> _mesh_nodes_along_polylines;
    mutable std::vector<MeshNodesAlongSurface*> _mesh_nodes_along_surfaces;

    static std::vector<std::unique_ptr<MeshNodeSearcher>> _mesh_node_searchers;
};
 
} // end namespace MeshGeoToolsLib