40 lines
1.9 KiB
C++
40 lines
1.9 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 "is_border_vertex.h"
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#include <vector>
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#include "triangle_triangle_adjacency.h"
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template <typename DerivedV, typename DerivedF>
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IGL_INLINE std::vector<bool> igl::is_border_vertex(
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const Eigen::PlainObjectBase<DerivedV> &V,
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const Eigen::PlainObjectBase<DerivedF> &F)
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{
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DerivedF FF;
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igl::triangle_triangle_adjacency(F,FF);
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std::vector<bool> ret(V.rows());
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for(unsigned i=0; i<ret.size();++i)
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ret[i] = false;
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for(unsigned i=0; i<F.rows();++i)
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for(unsigned j=0;j<F.cols();++j)
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if(FF(i,j) == -1)
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{
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ret[F(i,j)] = true;
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ret[F(i,(j+1)%F.cols())] = true;
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}
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return ret;
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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template std::vector<bool, std::allocator<bool> > igl::is_border_vertex<Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 3, 0, -1, 3> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&);
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template std::vector<bool, std::allocator<bool> > igl::is_border_vertex<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
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template std::vector<bool, std::allocator<bool> > igl::is_border_vertex<Eigen::Matrix<double, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 1, 0, -1, 1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&);
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#endif
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