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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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src/igl/remove_duplicates.cpp Normal file
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2013 Alec Jacobson <alecjacobson@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 "remove_duplicates.h"
#include <vector>
//template <typename T, typename S>
//IGL_INLINE void igl::remove_duplicates(
// const Eigen::Matrix<T, Eigen::Dynamic, Eigen::Dynamic> &V,
// const Eigen::Matrix<S, Eigen::Dynamic, Eigen::Dynamic> &F,
// Eigen::Matrix<T, Eigen::Dynamic, Eigen::Dynamic> &NV,
// Eigen::Matrix<S, Eigen::Dynamic, Eigen::Dynamic> &NF,
// Eigen::Matrix<S, Eigen::Dynamic, 1> &I,
// const double epsilon)
template <typename DerivedV, typename DerivedF>
IGL_INLINE void igl::remove_duplicates(
const Eigen::PlainObjectBase<DerivedV> &V,
const Eigen::PlainObjectBase<DerivedF> &F,
Eigen::PlainObjectBase<DerivedV> &NV,
Eigen::PlainObjectBase<DerivedF> &NF,
Eigen::Matrix<typename DerivedF::Scalar, Eigen::Dynamic, 1> &I,
const double epsilon)
{
using namespace std;
//// build collapse map
int n = V.rows();
I = Eigen::Matrix<typename DerivedF::Scalar, Eigen::Dynamic, 1>(n);
I[0] = 0;
bool *VISITED = new bool[n];
for (int i =0; i <n; ++i)
VISITED[i] = false;
NV.resize(n,V.cols());
int count = 0;
Eigen::VectorXd d(n);
for (int i =0; i <n; ++i)
{
if(!VISITED[i])
{
NV.row(count) = V.row(i);
I[i] = count;
VISITED[i] = true;
for (int j = i+1; j <n; ++j)
{
if((V.row(j) - V.row(i)).norm() < epsilon)
{
VISITED[j] = true;
I[j] = count;
}
}
count ++;
}
}
NV.conservativeResize ( count , Eigen::NoChange );
count = 0;
std::vector<typename DerivedF::Scalar> face;
NF.resizeLike(F);
for (int i =0; i <F.rows(); ++i)
{
face.clear();
for (int j = 0; j< F.cols(); ++j)
if(std::find(face.begin(), face.end(), I[F(i,j)]) == face.end())
face.push_back(I[F(i,j)]);
if (face.size() == size_t(F.cols()))
{
for (unsigned j = 0; j< F.cols(); ++j)
NF(count,j) = face[j];
count ++;
}
}
NF.conservativeResize ( count , Eigen::NoChange );
delete [] VISITED;
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
template void igl::remove_duplicates<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> >&, Eigen::Matrix<Eigen::Matrix<int, -1, -1, 0, -1, -1>::Scalar, -1, 1, 0, -1, 1>&, double);
template void igl::remove_duplicates<Eigen::Matrix<double, -1, 3, 1, -1, 3>, Eigen::Matrix<int, -1, 3, 1, -1, 3> >(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 3, 1, -1, 3> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> >&, Eigen::Matrix<Eigen::Matrix<int, -1, 3, 1, -1, 3>::Scalar, -1, 1, 0, -1, 1>&, double);
#endif