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#ifndef __HMESHUTIL_MESH_OPTIMIZATION_H
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#define __HMESHUTIL_MESH_OPTIMIZATION_H
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#include "HMesh/Manifold.h"
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namespace HMeshUtil
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{
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  class EnergyFun
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  {
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  public:
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    virtual double delta_energy(HMesh::HalfEdgeIter) const = 0;
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    virtual double energy(HMesh::HalfEdgeIter) const {return 0;}
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  };
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  void priority_queue_optimization(HMesh::Manifold& m, const EnergyFun& efun);
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  void simulated_annealing_optimization(HMesh::Manifold& m,
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					const EnergyFun& efun,
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					int max_iter=10000);
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	void minimize_dihedral_angle(HMesh::Manifold& m,
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															 int max_iter=10000,
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															 bool anneal=false,
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															 bool alpha=false,
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															 double gamma=4.0);
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  void minimize_curvature(HMesh::Manifold& m, bool anneal=false);
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  void minimize_gauss_curvature(HMesh::Manifold& m, bool anneal=false);
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  void maximize_min_angle(HMesh::Manifold& m, float thresh, bool anneal=false);
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  void optimize_valency(HMesh::Manifold& m, bool anneal=false);
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  void randomize_mesh(HMesh::Manifold& m, int max_iter);
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}
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#endif