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https://github.com/SoftFever/OrcaSlicer.git
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2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
78 lines
3 KiB
C++
78 lines
3 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2016 Alec Jacobson
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#include "unproject_onto_mesh.h"
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#include "unproject.h"
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#include "unproject_ray.h"
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#include "ray_mesh_intersect.h"
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#include <vector>
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template < typename DerivedV, typename DerivedF, typename Derivedbc>
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IGL_INLINE bool igl::unproject_onto_mesh(
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const Eigen::Vector2f& pos,
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const Eigen::Matrix4f& model,
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const Eigen::Matrix4f& proj,
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const Eigen::Vector4f& viewport,
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const Eigen::PlainObjectBase<DerivedV> & V,
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const Eigen::PlainObjectBase<DerivedF> & F,
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int & fid,
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Eigen::PlainObjectBase<Derivedbc> & bc)
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{
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using namespace std;
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using namespace Eigen;
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const auto & shoot_ray = [&V,&F](
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const Eigen::Vector3f& s,
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const Eigen::Vector3f& dir,
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igl::Hit & hit)->bool
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{
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std::vector<igl::Hit> hits;
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if(!ray_mesh_intersect(s,dir,V,F,hits))
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{
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return false;
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}
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hit = hits[0];
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return true;
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};
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return unproject_onto_mesh(pos,model,proj,viewport,shoot_ray,fid,bc);
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}
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template <typename Derivedbc>
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IGL_INLINE bool igl::unproject_onto_mesh(
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const Eigen::Vector2f& pos,
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const Eigen::Matrix4f& model,
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const Eigen::Matrix4f& proj,
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const Eigen::Vector4f& viewport,
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const std::function<
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bool(
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const Eigen::Vector3f&,
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const Eigen::Vector3f&,
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igl::Hit &)
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> & shoot_ray,
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int & fid,
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Eigen::PlainObjectBase<Derivedbc> & bc)
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{
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using namespace std;
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using namespace Eigen;
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Vector3f s,dir;
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unproject_ray(pos,model,proj,viewport,s,dir);
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Hit hit;
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if(!shoot_ray(s,dir,hit))
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{
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return false;
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}
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bc.resize(3);
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bc << 1.0-hit.u-hit.v, hit.u, hit.v;
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fid = hit.id;
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return true;
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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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> >&);
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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> >&);
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#endif
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