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Merged branch 'dev_native' into lm_sla_supports_auto

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Added igl library files
This commit is contained in:
Lukas Matena 2018-10-26 15:45:52 +02:00
commit 7681d00ee5
2865 changed files with 142806 additions and 22325 deletions
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76
src/igl/polygon_mesh_to_triangle_mesh.cpp Normal file
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// 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 "polygon_mesh_to_triangle_mesh.h"
#include "matrix_to_list.h"
template <typename Index, typename DerivedF>
IGL_INLINE void igl::polygon_mesh_to_triangle_mesh(
const std::vector<std::vector<Index> > & vF,
Eigen::PlainObjectBase<DerivedF>& F)
{
using namespace std;
using namespace Eigen;
int m = 0;
// estimate of size
for(typename vector<vector<Index > >::const_iterator fit = vF.begin();
fit!=vF.end();
fit++)
{
if(fit->size() >= 3)
{
m += fit->size() - 2;
}
}
// Resize output
F.resize(m,3);
{
int k = 0;
for(typename vector<vector<Index > >::const_iterator fit = vF.begin();
fit!=vF.end();
fit++)
{
if(fit->size() >= 3)
{
typename vector<Index >::const_iterator cit = fit->begin();
cit++;
typename vector<Index >::const_iterator pit = cit++;
for(;
cit!=fit->end();
cit++,pit++)
{
F(k,0) = *(fit->begin());
F(k,1) = *pit;
F(k,2) = *cit;
k++;
}
}
}
assert(k==m);
}
}
template <typename DerivedP, typename DerivedF>
IGL_INLINE void igl::polygon_mesh_to_triangle_mesh(
const Eigen::PlainObjectBase<DerivedP>& P,
Eigen::PlainObjectBase<DerivedF>& F)
{
std::vector<std::vector<typename DerivedP::Scalar> > vP;
matrix_to_list(P,vP);
return polygon_mesh_to_triangle_mesh(vP,F);
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
// generated by autoexplicit.sh
template void igl::polygon_mesh_to_triangle_mesh<int, Eigen::Matrix<unsigned int, -1, 3, 1, -1, 3> >(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > > const&, Eigen::PlainObjectBase<Eigen::Matrix<unsigned int, -1, 3, 1, -1, 3> >&);
// generated by autoexplicit.sh
template void igl::polygon_mesh_to_triangle_mesh<int, Eigen::Matrix<int, -1, 3, 0, -1, 3> >(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 0, -1, 3> >&);
template void igl::polygon_mesh_to_triangle_mesh<int, Eigen::Matrix<int, -1, -1, 0, -1, -1> >(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&);
template void igl::polygon_mesh_to_triangle_mesh<int, Eigen::Matrix<int, -1, 3, 1, -1, 3> >(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> >&);
#endif