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38 lines
1.1 KiB
C++
38 lines
1.1 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2014 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_SETDIFF_H
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#define IGL_SETDIFF_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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// Set difference of elements of matrices
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//
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// Inputs:
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// A m-long vector of indices
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// B n-long vector of indices
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// Outputs:
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// C (k<=m)-long vector of unique elements appearing in A but not in B
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// IA (k<=m)-long list of indices into A so that C = A(IA)
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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 DerivedC,
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typename DerivedIA>
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IGL_INLINE void setdiff(
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const Eigen::DenseBase<DerivedA> & A,
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const Eigen::DenseBase<DerivedB> & B,
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Eigen::PlainObjectBase<DerivedC> & C,
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Eigen::PlainObjectBase<DerivedIA> & IA);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "setdiff.cpp"
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#endif
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#endif
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