Boundary2DDelaunayGenerator.h

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//* This file is part of the MOOSE framework
//* https://www.mooseframework.org
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html

#pragma once

#include "SurfaceDelaunayGeneratorBase.h"
#include "FunctionParserUtils.h"

#include "libmesh/meshfree_interpolation.h"

class Boundary2DDelaunayGenerator : public SurfaceDelaunayGeneratorBase,
                                    public FunctionParserUtils<false>
{
public:
  static InputParameters validParams();

  Boundary2DDelaunayGenerator(const InputParameters & parameters);

  virtual std::unique_ptr<MeshBase> generate() override;

protected:
  std::unique_ptr<MeshBase> & _input;

  const std::vector<BoundaryName> _boundary_names;

  const std::vector<std::vector<BoundaryName>> _hole_boundary_names;

  const unsigned int _max_level_set_correction_iterations;

  const Real _max_angle_deviation;

  BoundaryName _output_external_boundary_name;

  SymFunctionPtr _func_level_set;

  Point elemNormal(const Elem & elem);

  Point meshNormal2D(const MeshBase & mesh);

  Real meshNormalDeviation2D(const MeshBase & mesh, const Point & global_norm);

  Real levelSetEvaluator(const Point & point);

  void levelSetCorrection(Node & node);

  std::unique_ptr<MeshBase>
  General2DDelaunay(std::unique_ptr<MeshBase> & mesh_2d,
                    std::vector<std::unique_ptr<MeshBase>> & hole_meshes_2d);
};