BSplineCurveGenerator.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* 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 "MeshGenerator.h"
#include "libMeshReducedNamespace.h"

class BSplineCurveGenerator : public MeshGenerator
{
public:
  static InputParameters validParams();

  BSplineCurveGenerator(const InputParameters & parameters);

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

protected:
  Point startPoint() const;
  Point endPoint() const;
  RealVectorValue startDirection() const;
  RealVectorValue endDirection() const;

  const SubdomainID _new_subdomain_id;
  const unsigned int _degree;
  const Real _sharpness;
  const unsigned int _num_cps;
  const unsigned int _order;
  const unsigned int _num_elements;
  std::vector<BoundaryName> _node_set_boundaries;

  // Alternative geometry input: use boundary centroids (and boundary average normals)
  std::unique_ptr<MeshBase> & _start_mesh_input;
  std::unique_ptr<MeshBase> & _end_mesh_input;
  std::unique_ptr<MeshBase> _start_mesh;
  std::unique_ptr<MeshBase> _end_mesh;
};