30 lines
1.3 KiB
C++
30 lines
1.3 KiB
C++
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2015 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 "directed_edge_orientations.h"
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template <typename DerivedC, typename DerivedE>
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IGL_INLINE void igl::directed_edge_orientations(
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const Eigen::PlainObjectBase<DerivedC> & C,
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const Eigen::PlainObjectBase<DerivedE> & E,
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std::vector<
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Eigen::Quaterniond,Eigen::aligned_allocator<Eigen::Quaterniond> > & Q)
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{
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using namespace Eigen;
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Q.resize(E.rows());
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for(int e = 0;e<E.rows();e++)
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{
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const auto & b = C.row(E(e,1)) - C.row(E(e,0));
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Q[e].setFromTwoVectors( RowVector3d(1,0,0),b);
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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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template void igl::directed_edge_orientations<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&, std::vector<Eigen::Quaternion<double, 0>, Eigen::aligned_allocator<Eigen::Quaternion<double, 0> > >&);
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#endif
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