// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef IGL_AVERAGE_ONTO_VERTICES_H
#define IGL_AVERAGE_ONTO_VERTICES_H
#include "igl_inline.h"

#include <Eigen/Dense>
namespace igl
{
  /// Move a scalar field defined on faces to vertices by averaging
  ///
  /// @param[in] V #V by 3 list of mesh vertex positions
  /// @param[in] F #F by 3 list of mesh face indices into rows of V
  /// @param[in] S #F by 1 scalar field defined on faces
  /// @param[out] SV #V by 1 scalar field defined on vertices
  template<typename DerivedV,typename DerivedF,typename DerivedS,typename DerivedSV>
  IGL_INLINE void average_onto_vertices(const Eigen::MatrixBase<DerivedV> &V,
    const Eigen::MatrixBase<DerivedF> &F,
    const Eigen::MatrixBase<DerivedS> &S,
    Eigen::PlainObjectBase<DerivedSV> &SV);
}

#ifndef IGL_STATIC_LIBRARY
#  include "average_onto_vertices.cpp"
#endif

#endif