64 lines
1.3 KiB
C++
64 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 "limit_faces.h"
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#include <vector>
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#include <Eigen/Dense>
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template <typename MatF, typename VecL>
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IGL_INLINE void igl::limit_faces(
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const MatF & F,
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const VecL & L,
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const bool exclusive,
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MatF & LF)
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{
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using namespace std;
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using namespace Eigen;
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vector<bool> in(F.rows(),false);
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int num_in = 0;
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// loop over faces
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for(int i = 0;i<F.rows();i++)
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{
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bool all = true;
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bool any = false;
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for(int j = 0;j<F.cols();j++)
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{
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bool found = false;
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// loop over L
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for(int l = 0;l<L.size();l++)
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{
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if(F(i,j) == L(l))
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{
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found = true;
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break;
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}
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}
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any |= found;
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all &= found;
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}
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in[i] = (exclusive?all:any);
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num_in += (in[i]?1:0);
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}
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LF.resize(num_in,F.cols());
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// loop over faces
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int lfi = 0;
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for(int i = 0;i<F.rows();i++)
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{
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if(in[i])
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{
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LF.row(lfi) = F.row(i);
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lfi++;
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}
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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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#endif
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