MeshRevision.h

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include <array>
#include <limits>
#include <string>
#include <vector>
 
// forward declaration
namespace MeshLib
{
class Mesh;
class Node;
}  // namespace MeshLib
 
namespace MeshToolsLib
{
class MeshRevision
{
public:
    explicit MeshRevision(MeshLib::Mesh& mesh);

    unsigned getNumberOfCollapsibleNodes(
        double eps = std::numeric_limits<double>::epsilon()) const;

    std::vector<std::size_t> collapseNodeIndices(double eps) const;

    MeshLib::Mesh* simplifyMesh(const std::string& new_mesh_name, double eps,
                                unsigned min_elem_dim = 1) const;
 
private:
    std::vector<MeshLib::Node*> constructNewNodesArray(
        const std::vector<std::size_t>& id_map) const;

    MeshLib::Mesh& _mesh;
};
 
}  // namespace MeshToolsLib