47 lines
1.5 KiB
C++
47 lines
1.5 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 "mat_max.h"
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template <typename DerivedX, typename DerivedY, typename DerivedI>
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IGL_INLINE void igl::mat_max(
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const Eigen::DenseBase<DerivedX> & X,
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const int dim,
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Eigen::PlainObjectBase<DerivedY> & Y,
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Eigen::PlainObjectBase<DerivedI> & I)
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{
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assert(dim==1||dim==2);
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// output size
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int n = (dim==1?X.cols():X.rows());
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// resize output
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Y.resize(n);
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I.resize(n);
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// loop over dimension opposite of dim
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for(int j = 0;j<n;j++)
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{
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typename DerivedX::Index PHONY,i;
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typename DerivedX::Scalar m;
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if(dim==1)
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{
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m = X.col(j).maxCoeff(&i,&PHONY);
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}else
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{
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m = X.row(j).maxCoeff(&PHONY,&i);
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}
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Y(j) = m;
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I(j) = i;
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}
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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// generated by autoexplicit.sh
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template void igl::mat_max<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::DenseBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, int, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 1, 0, -1, 1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
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#endif
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