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#ifndef __HMESHUTIL_MESH_OPTIMIZATION_H
#define __HMESHUTIL_MESH_OPTIMIZATION_H

#include "HMesh/Manifold.h"

namespace HMeshUtil
{
  class EnergyFun
  {
  public:
    virtual double delta_energy(HMesh::HalfEdgeIter) const = 0;
    virtual double energy(HMesh::HalfEdgeIter) const {return 0;}
  };

  void priority_queue_optimization(HMesh::Manifold& m, const EnergyFun& efun);

  void simulated_annealing_optimization(HMesh::Manifold& m, 
                                        const EnergyFun& efun,
                                        int max_iter=10000);
    
        void minimize_dihedral_angle(HMesh::Manifold& m,
                                                                                                                         int max_iter=10000,
                                                                                                                         bool anneal=false,
                                                                                                                         bool alpha=false,
                                                                                                                         double gamma=4.0);
  void minimize_curvature(HMesh::Manifold& m, bool anneal=false);
  void minimize_gauss_curvature(HMesh::Manifold& m, bool anneal=false);
  void maximize_min_angle(HMesh::Manifold& m, float thresh, bool anneal=false);
  void optimize_valency(HMesh::Manifold& m, bool anneal=false);
  void randomize_mesh(HMesh::Manifold& m, int max_iter);

}


#endif