45 lines
1.3 KiB
C++
45 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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#ifndef IGL_MAT_MAX_H
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#define IGL_MAT_MAX_H
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#include "igl_inline.h"
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#include <Eigen/Dense>
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namespace igl
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{
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// Ideally this becomes a super overloaded function supporting everything
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// that matlab's max supports
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// Max function for matrices to act like matlab's max function. Specifically
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// like [Y,I] = max(X,[],dim);
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//
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// Templates:
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// T should be a eigen matrix primitive type like int or double
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// Inputs:
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// X m by n matrix
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// dim dimension along which to take max
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// Outputs:
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// Y n-long vector (if dim == 1)
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// or
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// Y m-long vector (if dim == 2)
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// I vector the same size as Y containing the indices along dim of maximum
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// entries
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template <typename DerivedX, typename DerivedY, typename DerivedI>
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IGL_INLINE void 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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#ifndef IGL_STATIC_LIBRARY
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# include "mat_max.cpp"
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#endif
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#endif
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