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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/unproject_onto_mesh.cpp Normal file
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2016 Alec Jacobson
//
// 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 "unproject_onto_mesh.h"
#include "unproject.h"
#include "unproject_ray.h"
#include "ray_mesh_intersect.h"
#include <vector>
template < typename DerivedV, typename DerivedF, typename Derivedbc>
IGL_INLINE bool igl::unproject_onto_mesh(
const Eigen::Vector2f& pos,
const Eigen::Matrix4f& model,
const Eigen::Matrix4f& proj,
const Eigen::Vector4f& viewport,
const Eigen::PlainObjectBase<DerivedV> & V,
const Eigen::PlainObjectBase<DerivedF> & F,
int & fid,
Eigen::PlainObjectBase<Derivedbc> & bc)
{
using namespace std;
using namespace Eigen;
const auto & shoot_ray = [&V,&F](
const Eigen::Vector3f& s,
const Eigen::Vector3f& dir,
igl::Hit & hit)->bool
{
std::vector<igl::Hit> hits;
if(!ray_mesh_intersect(s,dir,V,F,hits))
{
return false;
}
hit = hits[0];
return true;
};
return unproject_onto_mesh(pos,model,proj,viewport,shoot_ray,fid,bc);
}
template <typename Derivedbc>
IGL_INLINE bool igl::unproject_onto_mesh(
const Eigen::Vector2f& pos,
const Eigen::Matrix4f& model,
const Eigen::Matrix4f& proj,
const Eigen::Vector4f& viewport,
const std::function<
bool(
const Eigen::Vector3f&,
const Eigen::Vector3f&,
igl::Hit &)
> & shoot_ray,
int & fid,
Eigen::PlainObjectBase<Derivedbc> & bc)
{
using namespace std;
using namespace Eigen;
Vector3f s,dir;
unproject_ray(pos,model,proj,viewport,s,dir);
Hit hit;
if(!shoot_ray(s,dir,hit))
{
return false;
}
bc.resize(3);
bc << 1.0-hit.u-hit.v, hit.u, hit.v;
fid = hit.id;
return true;
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
template bool igl::unproject_onto_mesh<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<float, 3, 1, 0, 3, 1> >(Eigen::Matrix<float, 2, 1, 0, 2, 1> const&, Eigen::Matrix<float, 4, 4, 0, 4, 4> const&, Eigen::Matrix<float, 4, 4, 0, 4, 4> const&, Eigen::Matrix<float, 4, 1, 0, 4, 1> const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, int&, Eigen::PlainObjectBase<Eigen::Matrix<float, 3, 1, 0, 3, 1> >&);
template bool igl::unproject_onto_mesh<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, -1, 1, 0, -1, 1> >(Eigen::Matrix<float, 2, 1, 0, 2, 1> const&, Eigen::Matrix<float, 4, 4, 0, 4, 4> const&, Eigen::Matrix<float, 4, 4, 0, 4, 4> const&, Eigen::Matrix<float, 4, 1, 0, 4, 1> const&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, int&, Eigen::PlainObjectBase<Eigen::Matrix<double, -1, 1, 0, -1, 1> >&);
#endif