mirror of
https://github.com/SoftFever/OrcaSlicer.git
synced 2025-10-31 04:31:15 -06:00
65 lines
2.5 KiB
C++
65 lines
2.5 KiB
C++
// 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
|