/**
 * \file
 * \author Karsten Rink
 * \date   2013-07-05
 * \brief  Definition of mesh to geometry conversion.
 *
 * \copyright
 * Copyright (c) 2012-2021, OpenGeoSys Community (http://www.opengeosys.org)
 *            Distributed under a Modified BSD License.
 *              See accompanying file LICENSE.txt or
 *              http://www.opengeosys.org/project/license
 *
 */

#pragma once

#include <limits>
#include <string>

namespace GeoLib
{
class GEOObjects;
class Surface;
}  // namespace GeoLib

namespace MeshLib
{
class Mesh;

/**
 * Converts a 2D mesh into a geometry.
 * A new geometry with the name of the mesh will be inserted into geo_objects,
 * consisting of points identical with mesh nodes and one surface representing
 * the mesh. Triangles are converted to geometric triangles, quads are split
 * into two triangles, all other elements are ignored.
 */
bool convertMeshToGeo(const MeshLib::Mesh& mesh,
                      GeoLib::GEOObjects& geo_objects,
                      double eps = std::numeric_limits<double>::epsilon());

/**
 * Converts a surface into a triangular mesh
 * @param sfc         Surface object
 * @param mesh_name   New mesh name
 * @param eps         Minimum distance for nodes not to be collapsed
 * @return a pointer to a converted mesh object. nullptr is returned if the
 * conversion fails.
 */
MeshLib::Mesh* convertSurfaceToMesh(
    const GeoLib::Surface& sfc, const std::string& mesh_name,
    double eps = std::numeric_limits<double>::epsilon());

}  // namespace MeshLib