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/**

 * @file smooth.h

 * @brief Functions for mesh smoothing.

 */

/* ----------------------------------------------------------------------- *

 * This file is part of GEL, http://www.imm.dtu.dk/GEL

 * Copyright (C) the authors and DTU Informatics

 * For license and list of authors, see ../../doc/intro.pdf

 * ----------------------------------------------------------------------- */

#ifndef __HMESH_SMOOTH_H

#define __HMESH_SMOOTH_H

#include <vector>

#include "Manifold.h"

namespace HMesh

{

   enum NormalSmoothMethod {FVM_NORMAL_SMOOTH, BILATERAL_NORMAL_SMOOTH};

    /// Simple laplacian smoothing with an optional weight.

    void laplacian_smooth(HMesh::Manifold& m, float t=1.0f, int iter=1);

    /// Taubin smoothing is similar to laplacian smoothing but reduces shrinkage

    void taubin_smooth(HMesh::Manifold& m, int iter=1);

    /** Smooth meshes by first filtering normals and then refitting the mesh */

    void anisotropic_smooth(HMesh::Manifold& m, int iter, NormalSmoothMethod nsm);

    /// Tangential area weighted smoothing.

    void TAL_smoothing(HMesh::Manifold& m, float w, int iter=1);

}

#endif