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55 lines
2.4 KiB
C++
55 lines
2.4 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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#include "connect_boundary_to_infinity.h"
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#include "boundary_facets.h"
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template <typename DerivedF, typename DerivedFO>
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IGL_INLINE void igl::connect_boundary_to_infinity(
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const Eigen::PlainObjectBase<DerivedF> & F,
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Eigen::PlainObjectBase<DerivedFO> & FO)
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{
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return connect_boundary_to_infinity(F,F.maxCoeff(),FO);
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}
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template <typename DerivedF, typename DerivedFO>
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IGL_INLINE void igl::connect_boundary_to_infinity(
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const Eigen::PlainObjectBase<DerivedF> & F,
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const typename DerivedF::Scalar inf_index,
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Eigen::PlainObjectBase<DerivedFO> & FO)
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{
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// Determine boundary edges
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Eigen::Matrix<typename DerivedFO::Scalar,Eigen::Dynamic,Eigen::Dynamic> O;
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boundary_facets(F,O);
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FO.resize(F.rows()+O.rows(),F.cols());
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typedef Eigen::Matrix<typename DerivedFO::Scalar,Eigen::Dynamic,1> VectorXI;
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FO.topLeftCorner(F.rows(),F.cols()) = F;
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FO.bottomLeftCorner(O.rows(),O.cols()) = O.rowwise().reverse();
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FO.bottomRightCorner(O.rows(),1).setConstant(inf_index);
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}
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedVO,
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typename DerivedFO>
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IGL_INLINE void igl::connect_boundary_to_infinity(
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const Eigen::PlainObjectBase<DerivedV> & V,
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const Eigen::PlainObjectBase<DerivedF> & F,
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Eigen::PlainObjectBase<DerivedVO> & VO,
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Eigen::PlainObjectBase<DerivedFO> & FO)
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{
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typename DerivedV::Index inf_index = V.rows();
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connect_boundary_to_infinity(F,inf_index,FO);
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VO.resize(V.rows()+1,V.cols());
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VO.topLeftCorner(V.rows(),V.cols()) = V;
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auto inf = std::numeric_limits<typename DerivedVO::Scalar>::infinity();
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VO.row(V.rows()).setConstant(inf);
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}
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#ifdef IGL_STATIC_LIBRARY
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template void igl::connect_boundary_to_infinity<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, 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&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
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#endif
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