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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/in_element.cpp Normal file
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2015 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 "in_element.h"
template <typename DerivedV, typename DerivedQ, int DIM>
IGL_INLINE void igl::in_element(
const Eigen::PlainObjectBase<DerivedV> & V,
const Eigen::MatrixXi & Ele,
const Eigen::PlainObjectBase<DerivedQ> & Q,
const AABB<DerivedV,DIM> & aabb,
Eigen::VectorXi & I)
{
using namespace std;
using namespace Eigen;
const int Qr = Q.rows();
I.setConstant(Qr,1,-1);
#pragma omp parallel for if (Qr>10000)
for(int e = 0;e<Qr;e++)
{
// find all
const auto R = aabb.find(V,Ele,Q.row(e).eval(),true);
if(!R.empty())
{
I(e) = R[0];
}
}
}
template <typename DerivedV, typename DerivedQ, int DIM, typename Scalar>
IGL_INLINE void igl::in_element(
const Eigen::PlainObjectBase<DerivedV> & V,
const Eigen::MatrixXi & Ele,
const Eigen::PlainObjectBase<DerivedQ> & Q,
const AABB<DerivedV,DIM> & aabb,
Eigen::SparseMatrix<Scalar> & I)
{
using namespace std;
using namespace Eigen;
const int Qr = Q.rows();
std::vector<Triplet<Scalar> > IJV;
IJV.reserve(Qr);
#pragma omp parallel for if (Qr>10000)
for(int e = 0;e<Qr;e++)
{
// find all
const auto R = aabb.find(V,Ele,Q.row(e).eval(),false);
for(const auto r : R)
{
#pragma omp critical
IJV.push_back(Triplet<Scalar>(e,r,1));
}
}
I.resize(Qr,Ele.rows());
I.setFromTriplets(IJV.begin(),IJV.end());
}
#ifdef IGL_STATIC_LIBRARY
template void igl::in_element<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, 2>(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, igl::AABB<Eigen::Matrix<double, -1, -1, 0, -1, -1>, 2> const&, Eigen::Matrix<int, -1, 1, 0, -1, 1>&);
template void igl::in_element<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, -1, 0, -1, -1>, 3>(Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::Matrix<int, -1, -1, 0, -1, -1> const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, igl::AABB<Eigen::Matrix<double, -1, -1, 0, -1, -1>, 3> const&, Eigen::Matrix<int, -1, 1, 0, -1, 1>&);
#endif