30 lines
1.3 KiB
C++
30 lines
1.3 KiB
C++
// 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 "normalize_row_sums.h"
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template <typename DerivedA, typename DerivedB>
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IGL_INLINE void igl::normalize_row_sums(
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const Eigen::MatrixBase<DerivedA>& A,
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Eigen::MatrixBase<DerivedB> & B)
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{
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#ifndef NDEBUG
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// loop over rows
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for(int i = 0; i < A.rows();i++)
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{
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typename DerivedB::Scalar sum = A.row(i).sum();
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assert(sum != 0);
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}
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#endif
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B = (A.array().colwise() / A.rowwise().sum().array()).eval();
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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template void igl::normalize_row_sums<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&);
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template void igl::normalize_row_sums<Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<double, -1, 3, 0, -1, 3> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> >&);
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#endif
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