NodeSearch.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include <vector>
 
namespace MeshLib
{
 
// forward declarations
class Mesh;
class Element;
class Node;

class NodeSearch final
{
public:
    explicit NodeSearch(const MeshLib::Mesh &mesh);

    const std::vector<std::size_t>& getSearchedNodeIDs() const {return _marked_nodes; }

    std::size_t searchNodesConnectedToOnlyGivenElements(
        const std::vector<std::size_t>& elements);

    std::size_t searchUnused();

    std::size_t searchBoundaryNodes();
 
private:
    void updateUnion(const std::vector<std::size_t> &vec);

    const MeshLib::Mesh &_mesh;
    std::vector<std::size_t> _marked_nodes;
};

std::vector<Node*> getUniqueNodes(std::vector<Element*> const& elements);
 
} // end namespace MeshLib