34 lines
1.0 KiB
C++
34 lines
1.0 KiB
C++
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#include "average_onto_vertices.h"
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template<typename DerivedV,typename DerivedF,typename DerivedS>
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IGL_INLINE void igl::average_onto_vertices(const Eigen::MatrixBase<DerivedV> &V,
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const Eigen::MatrixBase<DerivedF> &F,
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const Eigen::MatrixBase<DerivedS> &S,
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Eigen::MatrixBase<DerivedS> &SV)
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{
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SV = DerivedS::Zero(V.rows(),S.cols());
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Eigen::Matrix<typename DerivedF::Scalar,Eigen::Dynamic,1> COUNT(V.rows());
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COUNT.setZero();
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for (int i = 0; i <F.rows(); ++i)
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{
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for (int j = 0; j<F.cols(); ++j)
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{
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SV.row(F(i,j)) += S.row(i);
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COUNT[F(i,j)] ++;
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}
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}
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for (int i = 0; i <V.rows(); ++i)
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SV.row(i) /= COUNT[i];
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};
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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#endif
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