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52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2016 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_ISMEMBER_H
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#define IGL_ISMEMBER_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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namespace igl
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{
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// Determine if elements of A exist in elements of B
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//
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// Inputs:
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// A ma by na matrix
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// B mb by nb matrix
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// Outputs:
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// IA ma by na matrix of flags whether corresponding element of A exists in
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// B
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// LOCB ma by na matrix of indices in B locating matching element (-1 if
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// not found), indices assume column major ordering
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//
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template <
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typename DerivedA,
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typename DerivedB,
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typename DerivedIA,
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typename DerivedLOCB>
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IGL_INLINE void ismember(
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const Eigen::MatrixBase<DerivedA> & A,
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const Eigen::MatrixBase<DerivedB> & B,
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Eigen::PlainObjectBase<DerivedIA> & IA,
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Eigen::PlainObjectBase<DerivedLOCB> & LOCB);
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template <
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typename DerivedA,
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typename DerivedB,
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typename DerivedIA,
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typename DerivedLOCB>
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IGL_INLINE void ismember_rows(
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const Eigen::MatrixBase<DerivedA> & A,
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const Eigen::MatrixBase<DerivedB> & B,
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Eigen::PlainObjectBase<DerivedIA> & IA,
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Eigen::PlainObjectBase<DerivedLOCB> & LOCB);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "ismember.cpp"
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#endif
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#endif
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