105 lines
9.0 KiB
C++
105 lines
9.0 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
|
|
//
|
|
// Copyright (C) 2014 Daniele Panozzo <daniele.panozzo@gmail.com>
|
|
//
|
|
// This Source Code Form is subject to the terms of the Mozilla Public License
|
|
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
|
|
// obtain one at http://mozilla.org/MPL/2.0/.
|
|
#include "vertex_triangle_adjacency.h"
|
|
#include "cumsum.h"
|
|
|
|
template <typename DerivedF, typename VFType, typename VFiType>
|
|
IGL_INLINE void igl::vertex_triangle_adjacency(
|
|
const typename DerivedF::Scalar n,
|
|
const Eigen::MatrixBase<DerivedF>& F,
|
|
std::vector<std::vector<VFType> >& VF,
|
|
std::vector<std::vector<VFiType> >& VFi)
|
|
{
|
|
VF.clear();
|
|
VFi.clear();
|
|
|
|
VF.resize(n);
|
|
VFi.resize(n);
|
|
|
|
typedef typename DerivedF::Index Index;
|
|
for(Index fi=0; fi<F.rows(); ++fi)
|
|
{
|
|
for(Index i = 0; i < F.cols(); ++i)
|
|
{
|
|
VF[F(fi,i)].push_back(fi);
|
|
VFi[F(fi,i)].push_back(i);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
template <typename DerivedV, typename DerivedF, typename IndexType>
|
|
IGL_INLINE void igl::vertex_triangle_adjacency(
|
|
const Eigen::MatrixBase<DerivedV>& V,
|
|
const Eigen::MatrixBase<DerivedF>& F,
|
|
std::vector<std::vector<IndexType> >& VF,
|
|
std::vector<std::vector<IndexType> >& VFi)
|
|
{
|
|
return vertex_triangle_adjacency(V.rows(),F,VF,VFi);
|
|
}
|
|
|
|
template <
|
|
typename DerivedF,
|
|
typename DerivedVF,
|
|
typename DerivedNI>
|
|
IGL_INLINE void igl::vertex_triangle_adjacency(
|
|
const Eigen::MatrixBase<DerivedF> & F,
|
|
const int n,
|
|
Eigen::PlainObjectBase<DerivedVF> & VF,
|
|
Eigen::PlainObjectBase<DerivedNI> & NI)
|
|
{
|
|
typedef Eigen::Matrix<typename DerivedVF::Scalar,Eigen::Dynamic,1> VectorXI;
|
|
// vfd #V list so that vfd(i) contains the vertex-face degree (number of
|
|
// faces incident on vertex i)
|
|
VectorXI vfd = VectorXI::Zero(n);
|
|
for (int i = 0; i < F.rows(); i++)
|
|
{
|
|
for (int j = 0; j < 3; j++)
|
|
{
|
|
vfd[F(i,j)]++;
|
|
}
|
|
}
|
|
igl::cumsum(vfd,1,NI);
|
|
// Prepend a zero
|
|
NI = (DerivedNI(n+1)<<0,NI).finished();
|
|
// vfd now acts as a counter
|
|
vfd = NI;
|
|
|
|
VF.derived()= Eigen::VectorXi(3*F.rows());
|
|
for (int i = 0; i < F.rows(); i++)
|
|
{
|
|
for (int j = 0; j < 3; j++)
|
|
{
|
|
VF[vfd[F(i,j)]] = i;
|
|
vfd[F(i,j)]++;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef IGL_STATIC_LIBRARY
|
|
// Explicit template instantiation
|
|
// generated by autoexplicit.sh
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<int, -1, 3, 1, -1, 3>, unsigned long, unsigned long>(Eigen::Matrix<int, -1, 3, 1, -1, 3>::Scalar, Eigen::MatrixBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > >&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > >&);
|
|
// generated by autoexplicit.sh
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, int>(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<double, -1, 3, 1, -1, 3>, Eigen::Matrix<unsigned int, -1, -1, 1, -1, -1>, unsigned int>(Eigen::MatrixBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<unsigned int, -1, -1, 1, -1, -1> > const&, std::vector<std::vector<unsigned int, std::allocator<unsigned int> >, std::allocator<std::vector<unsigned int, std::allocator<unsigned int> > > >&, std::vector<std::vector<unsigned int, std::allocator<unsigned int> >, std::allocator<std::vector<unsigned int, std::allocator<unsigned int> > > >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<double, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 3, 0, -1, 3>, int>(Eigen::MatrixBase<Eigen::Matrix<double, -1, 3, 0, -1, 3> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<double, -1, -1, 0, -1, -1>, long, long>(Eigen::Matrix<double, -1, -1, 0, -1, -1>::Scalar, Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, std::vector<std::vector<long, std::allocator<long> >, std::allocator<std::vector<long, std::allocator<long> > > >&, std::vector<std::vector<long, std::allocator<long> >, std::allocator<std::vector<long, std::allocator<long> > > >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<int, -1, -1, 0, -1, -1>, long, long>(Eigen::Matrix<int, -1, -1, 0, -1, -1>::Scalar, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, std::vector<std::vector<long, std::allocator<long> >, std::allocator<std::vector<long, std::allocator<long> > > >&, std::vector<std::vector<long, std::allocator<long> >, std::allocator<std::vector<long, std::allocator<long> > > >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<int, -1, -1, 0, -1, -1>, unsigned long, unsigned long>(Eigen::Matrix<int, -1, -1, 0, -1, -1>::Scalar, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > >&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<double, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, int>(Eigen::MatrixBase<Eigen::Matrix<double, -1, 1, 0, -1, 1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<int, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&, int, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, int, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
|
|
template void igl::vertex_triangle_adjacency<Eigen::Matrix<int, -1, 3, 0, -1, 3>, int, int>(Eigen::Matrix<int, -1, 3, 0, -1, 3>::Scalar, Eigen::MatrixBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> > const&, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&, std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&);
|
|
#ifdef WIN32
|
|
template void igl::vertex_triangle_adjacency<class Eigen::Matrix<int, -1, -1, 0, -1, -1>, unsigned __int64, unsigned __int64>(int, class Eigen::MatrixBase<class Eigen::Matrix<int, -1, -1, 0, -1, -1>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> &);
|
|
template void igl::vertex_triangle_adjacency<class Eigen::Matrix<int, -1, 3, 1, -1, 3>, unsigned __int64, unsigned __int64>(int, class Eigen::MatrixBase<class Eigen::Matrix<int, -1, 3, 1, -1, 3>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> &);
|
|
template void igl::vertex_triangle_adjacency<class Eigen::Matrix<int,-1,-1,0,-1,-1>,__int64,__int64>(int,class Eigen::MatrixBase<class Eigen::Matrix<int,-1,-1,0,-1,-1> > const &,class std::vector<class std::vector<__int64,class std::allocator<__int64> >,class std::allocator<class std::vector<__int64,class std::allocator<__int64> > > > &,class std::vector<class std::vector<__int64,class std::allocator<__int64> >,class std::allocator<class std::vector<__int64,class std::allocator<__int64> > > > &);
|
|
#endif
|
|
#endif
|