Update eigen to v5.0.1 and libigl to v2.6.0. (#11311)

* Update eigen from v3.3.7 to v5.0.1.

This updates eigen from v3.3.7 released on  December 11, 2018-12-11 to v5.0.1
released on 2025-11-11. There have be a large number of bug-fixes,
optimizations, and improvements between these releases. See the details at;

https://gitlab.com/libeigen/eigen/-/releases

It retains the previous custom minimal `CMakeLists.txt`, and adds a
README-OrcaSlicer.md that explains what version and parts of the upstream
eigen release have been included, and where the full release can be found.

* Update libigl from v2.0.0 (or older) to v2.6.0.

This updates libigl from what was probably v2.0.0 released on 2018-10-16 to
v2.6.0 released on 2025-05-15. It's possible the old version was even older
than that but there is no version indicators in the code and I ran out of
patience identifying missing changes and only went back as far as v2.0.0.

There have been a large number of bug-fixes, optimizations, and improvements
between these versions. See the following for details;

https://github.com/libigl/libigl/releases

I retained the minimal custom `CMakeLists.txt`, added `README.md` from the
libigl distribution which identifies the version, and added a
README-OrcaSlicer.md that details the version and parts that have been
included.

* Update libslic3r for libigl v2.6.0 changes.

This updates libslic3r for all changes moving to eigen v5.0.1 and libigl
v2.6.0. Despite the large number of updates to both dependencies, no changes
were required for the eigen update, and only one change was required for the
libigl update.

For libigl, `igl::Hit` was changed to a template taking the Scalar type to
use. Previously it was hard-coded to `float`, so to minimize possible impact
I've updated all places it is used from `igl::Hit` to `igl::Hit<float>`.

* Add compiler option `-DNOMINMAX` for libigl with MSVC.

MSVC by default defines `min(()` and `max()` macros that break
`std::numeric_limits<>::max()`. The upstream cmake that we don't include
adds `-DNOMINMAX` for the libigl module when compiling with MSVC, so we need
to add the same thing here.

* Fix src/libslic3r/TriangleMeshDeal.cpp for the unmodified upstream libigl.

This fixes `TriangleMeshDeal.cpp` to work with the unmodified upstream
libigl v2.6.0. loop.{h,cpp} implementation.

This file and feature was added in PR "BBS Port: Mesh Subdivision" (#12150)
which included changes to `loop.{h,cpp}` in the old version of libigl. This PR
avoids modifying the included dependencies, and uses the updated upstream
versions of those files without any modifications, which requires fixing
TriangleMeshDeal.cpp to work with them.

In particular, the modifications made to `loop.{h,cpp}` included changing the
return type from void to bool, adding additional validation checking of the
input meshes, and returning false if they failed validation. These added
checks looked unnecessary and would only have caught problems if the input
mesh was very corrupt.

To make `TriangleMeshDeal.cpp` work without this built-in checking
functionality, I removed checking/handling of any `false` return value.

There was also a hell of a lot of redundant copying and casting back and forth
between float and double, so I cleaned that up. The input and output meshs use
floats for the vertexes, and there would be no accuracy benefits from casting
to and from doubles for the simple weighted average operations done by
igl::loop(). So this just uses `Eigen:Map` to use the original input mesh
vertex data directly without requiring any copy or casting.

* Move eigen from included `deps_src` to externaly fetched `deps`.

This copys what PrusaSlicer did and moved it from an included dependency under
`deps_src` to an externaly fetched dependency under `deps`. This requires
updating some `CMakeList.txt` configs and removing the old and obsolete
`cmake/modules/FindEigen3.cmake`. The details of when this was done in
PrusaSlicer and the followup fixes are at;

* 21116995d7
* https://github.com/prusa3d/PrusaSlicer/issues/13608
* https://github.com/prusa3d/PrusaSlicer/pull/13609
* e3c277b9ee

For some reason I don't fully understand this also required fixing
`src/slic3r/GUI/GUI_App.cpp` by adding `#include <boost/nowide/cstdio.hpp>` to
fix an `error: ‘remove’ is not a member of ‘boost::nowide'`. The main thing I
don't understand is how it worked before. Note that this include is in the
PrusaSlicer version of this file, but it also significantly deviates from what
is currently in OrcaSlicer in many other ways.

* Whups... I missed adding the deps/Eigen/Eigen.cmake file...

* Tidy some whitespace indenting in CMakeLists.txt.

* Ugh... tabs indenting needing fixes.

* Change the include order of deps/Eigen.

It turns out that although Boost includes some references to Eigen, Eigen also
includes some references to Boost for supporting some of it's additional
numeric types.

I don't think it matters much since we are not using these features, but I
think technically its more correct to say Eigen depends on Boost than the
other way around, so I've re-ordered them.

* Add source for Eigen 5.0.1 download to flatpak yml config.

* Add explicit `DEPENDS dep_Boost to deps/Eigen.

I missed this before. This ensures we don't rely on include orders to make
sure Boost is installed before we configure Eigen.

* Add `DEPENDS dep_Boost dep_GMP dep_MPFR` to deps/Eigen.

It turns out Eigen can also use GMP and MPFR for multi-precision and
multi-precision-rounded numeric types if they are available.

Again, I don't think we are using these so it doesn't really matter, but it is
technically correct and ensures they are there if we ever do need them.

* Fix deps DEPENDENCY ordering for GMP, MPFR, Eigen, and CGAL.

I think this is finally correct. Apparently CGAL also optionally depends on
Eigen, so the correct dependency order from lowest to highest is GMP, MPFR, Eigen, and CGAL.

---------

Co-authored-by: Donovan Baarda <dbaarda@google.com>
Co-authored-by: Noisyfox <timemanager.rick@gmail.com>
This commit is contained in:
Donovan Baarda
2026-05-12 17:09:13 +10:00
committed by SoftFever
parent 797ee70b0b
commit 807520ca1d
1573 changed files with 63323 additions and 161343 deletions

View File

@@ -15,6 +15,7 @@
#include "order_facets_around_edge.h"
#include "submesh_aabb_tree.h"
#include "../../vertex_triangle_adjacency.h"
#include "../../PlainMatrix.h"
#include "../../LinSpaced.h"
//#include "../../writePLY.h"
@@ -23,64 +24,20 @@ template<
typename DerivedF,
typename DerivedI,
typename DerivedP,
typename uE2EType,
typename DerivedEMAP,
typename DerivedR,
typename DerivedS >
IGL_INLINE void igl::copyleft::cgal::closest_facet(
const Eigen::PlainObjectBase<DerivedV>& V,
const Eigen::PlainObjectBase<DerivedF>& F,
const Eigen::PlainObjectBase<DerivedI>& I,
const Eigen::PlainObjectBase<DerivedP>& P,
const std::vector<std::vector<uE2EType> >& uE2E,
const Eigen::PlainObjectBase<DerivedEMAP>& EMAP,
Eigen::PlainObjectBase<DerivedR>& R,
Eigen::PlainObjectBase<DerivedS>& S)
{
typedef CGAL::Exact_predicates_exact_constructions_kernel Kernel;
typedef Kernel::Point_3 Point_3;
typedef Kernel::Plane_3 Plane_3;
typedef Kernel::Segment_3 Segment_3;
typedef Kernel::Triangle_3 Triangle;
typedef std::vector<Triangle>::iterator Iterator;
typedef CGAL::AABB_triangle_primitive<Kernel, Iterator> Primitive;
typedef CGAL::AABB_traits<Kernel, Primitive> AABB_triangle_traits;
typedef CGAL::AABB_tree<AABB_triangle_traits> Tree;
if (F.rows() <= 0 || I.rows() <= 0) {
throw std::runtime_error(
"Closest facet cannot be computed on empty mesh.");
}
std::vector<std::vector<size_t> > VF, VFi;
igl::vertex_triangle_adjacency(V.rows(), F, VF, VFi);
std::vector<bool> in_I;
std::vector<Triangle> triangles;
Tree tree;
submesh_aabb_tree(V,F,I,tree,triangles,in_I);
return closest_facet(
V,F,I,P,uE2E,EMAP,VF,VFi,tree,triangles,in_I,R,S);
}
template<
typename DerivedV,
typename DerivedF,
typename DerivedI,
typename DerivedP,
typename uE2EType,
typename DerivedEMAP,
typename DeriveduEC,
typename DeriveduEE,
typename Kernel,
typename DerivedR,
typename DerivedS >
IGL_INLINE void igl::copyleft::cgal::closest_facet(
const Eigen::PlainObjectBase<DerivedV>& V,
const Eigen::PlainObjectBase<DerivedF>& F,
const Eigen::PlainObjectBase<DerivedI>& I,
const Eigen::PlainObjectBase<DerivedP>& P,
const std::vector<std::vector<uE2EType> >& uE2E,
const Eigen::PlainObjectBase<DerivedEMAP>& EMAP,
const Eigen::MatrixBase<DerivedV>& V,
const Eigen::MatrixBase<DerivedF>& F,
const Eigen::MatrixBase<DerivedI>& I,
const Eigen::MatrixBase<DerivedP>& P,
const Eigen::MatrixBase<DerivedEMAP>& EMAP,
const Eigen::MatrixBase<DeriveduEC>& uEC,
const Eigen::MatrixBase<DeriveduEE>& uEE,
const std::vector<std::vector<size_t> > & VF,
const std::vector<std::vector<size_t> > & VFi,
const CGAL::AABB_tree<
@@ -103,7 +60,6 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
typedef typename CGAL::AABB_traits<Kernel, Primitive> AABB_triangle_traits;
typedef typename CGAL::AABB_tree<AABB_triangle_traits> Tree;
const size_t num_faces = I.rows();
if (F.rows() <= 0 || I.rows() <= 0) {
throw std::runtime_error(
"Closest facet cannot be computed on empty mesh.");
@@ -199,17 +155,20 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
corner_idx = 0;
} else
{
std::cerr << "s: " << s << "\t d:" << d << std::endl;
std::cerr << F.row(preferred_facet) << std::endl;
// Should never happen.
//std::cerr << "s: " << s << "\t d:" << d << std::endl;
//std::cerr << F.row(preferred_facet) << std::endl;
throw std::runtime_error(
"Invalid connectivity, edge does not belong to facet");
}
auto ueid = EMAP(preferred_facet + corner_idx * F.rows());
auto eids = uE2E[ueid];
std::vector<size_t> intersected_face_indices;
for (auto eid : eids)
//auto eids = uE2E[ueid];
//for (auto eid : eids)
for(size_t j = uEC(ueid);j<uEC(ueid+1);j++)
{
const size_t eid = uEE(j);
const size_t fid = eid % F.rows();
if (in_I[fid])
{
@@ -240,7 +199,7 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
}
Eigen::VectorXi order;
DerivedP pivot = P.row(query_idx).eval();
PlainMatrix<DerivedP,1> pivot = P.row(query_idx).eval();
igl::copyleft::cgal::order_facets_around_edge(V, F, s, d,
intersected_face_signed_indices,
pivot, order);
@@ -261,9 +220,11 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
}
};
auto process_face_case = [&](
const size_t query_idx, const Point_3& closest_point,
const size_t fid, bool& orientation) -> size_t {
auto process_face_case = [&F,&I,&process_edge_case](
const size_t query_idx,
const size_t fid,
bool& orientation) -> size_t
{
const auto& f = F.row(I(fid, 0));
return process_edge_case(query_idx, f[0], f[1], I(fid, 0), orientation);
};
@@ -285,7 +246,6 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
auto process_vertex_case = [&](
const size_t query_idx,
size_t s,
size_t preferred_facet,
bool& orientation) -> size_t
{
const Point_3 query_point(
@@ -341,7 +301,6 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
auto is_on_exterior = [&](const Plane_3& separator) -> bool{
size_t positive=0;
size_t negative=0;
size_t coplanar=0;
for (const auto& point : adj_points) {
switch(separator.oriented_side(point)) {
case CGAL::ON_POSITIVE_SIDE:
@@ -351,7 +310,6 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
negative++;
break;
case CGAL::ON_ORIENTED_BOUNDARY:
coplanar++;
break;
default:
throw "Unknown plane-point orientation";
@@ -393,16 +351,16 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
}
}
if (d == std::numeric_limits<size_t>::max()) {
Eigen::MatrixXd tmp_vertices(V.rows(), V.cols());
for (size_t i=0; i<V.rows(); i++) {
for (size_t j=0; j<V.cols(); j++) {
tmp_vertices(i,j) = CGAL::to_double(V(i,j));
}
}
Eigen::MatrixXi tmp_faces(adj_faces.size(), 3);
for (size_t i=0; i<adj_faces.size(); i++) {
tmp_faces.row(i) = F.row(adj_faces[i]);
}
//PlainMatrix<DerivedV,Eigen::Dynamic> tmp_vertices(V.rows(), V.cols());
//for (size_t i=0; i<V.rows(); i++) {
// for (size_t j=0; j<V.cols(); j++) {
// tmp_vertices(i,j) = CGAL::to_double(V(i,j));
// }
//}
//PlainMatrix<DerivedF,Eigen::Dynamic,3> tmp_faces(adj_faces.size(), 3);
//for (size_t i=0; i<adj_faces.size(); i++) {
// tmp_faces.row(i) = F.row(adj_faces[i]);
//}
//igl::writePLY("debug.ply", tmp_vertices, tmp_faces, false);
throw std::runtime_error("Invalid vertex neighborhood");
}
@@ -442,7 +400,7 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
{
const auto& f = F.row(I(fid, 0));
const size_t s = f[element_index];
fid = process_vertex_case(i, s, I(fid, 0), fid_ori);
fid = process_vertex_case(i, s, fid_ori);
}
break;
case EDGE:
@@ -455,7 +413,7 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
break;
case FACE:
{
fid = process_face_case(i, closest_point, fid, fid_ori);
fid = process_face_case(i, fid, fid_ori);
}
break;
default:
@@ -471,34 +429,97 @@ IGL_INLINE void igl::copyleft::cgal::closest_facet(
template<
typename DerivedV,
typename DerivedF,
typename DerivedI,
typename DerivedP,
typename uE2EType,
typename DerivedEMAP,
typename DeriveduEC,
typename DeriveduEE,
typename DerivedR,
typename DerivedS >
IGL_INLINE void igl::copyleft::cgal::closest_facet(
const Eigen::PlainObjectBase<DerivedV>& V,
const Eigen::PlainObjectBase<DerivedF>& F,
const Eigen::PlainObjectBase<DerivedP>& P,
const std::vector<std::vector<uE2EType> >& uE2E,
const Eigen::PlainObjectBase<DerivedEMAP>& EMAP,
const Eigen::MatrixBase<DerivedV>& V,
const Eigen::MatrixBase<DerivedF>& F,
const Eigen::MatrixBase<DerivedI>& I,
const Eigen::MatrixBase<DerivedP>& P,
const Eigen::MatrixBase<DerivedEMAP>& EMAP,
const Eigen::MatrixBase<DeriveduEC>& uEC,
const Eigen::MatrixBase<DeriveduEE>& uEE,
Eigen::PlainObjectBase<DerivedR>& R,
Eigen::PlainObjectBase<DerivedS>& S)
{
typedef CGAL::Exact_predicates_exact_constructions_kernel Kernel;
typedef Kernel::Triangle_3 Triangle;
typedef std::vector<Triangle>::iterator Iterator;
typedef CGAL::AABB_triangle_primitive<Kernel, Iterator> Primitive;
typedef CGAL::AABB_traits<Kernel, Primitive> AABB_triangle_traits;
typedef CGAL::AABB_tree<AABB_triangle_traits> Tree;
if (F.rows() <= 0 || I.rows() <= 0) {
throw std::runtime_error(
"Closest facet cannot be computed on empty mesh.");
}
std::vector<std::vector<size_t> > VF, VFi;
igl::vertex_triangle_adjacency(V.rows(), F, VF, VFi);
std::vector<bool> in_I;
std::vector<Triangle> triangles;
Tree tree;
submesh_aabb_tree(V,F,I,tree,triangles,in_I);
return closest_facet(
V,F,I,P,EMAP,uEC,uEE,VF,VFi,tree,triangles,in_I,R,S);
}
template<
typename DerivedV,
typename DerivedF,
typename DerivedP,
typename DerivedEMAP,
typename DeriveduEC,
typename DeriveduEE,
typename DerivedR,
typename DerivedS >
IGL_INLINE void igl::copyleft::cgal::closest_facet(
const Eigen::MatrixBase<DerivedV>& V,
const Eigen::MatrixBase<DerivedF>& F,
const Eigen::MatrixBase<DerivedP>& P,
const Eigen::MatrixBase<DerivedEMAP>& EMAP,
const Eigen::MatrixBase<DeriveduEC>& uEC,
const Eigen::MatrixBase<DeriveduEE>& uEE,
Eigen::PlainObjectBase<DerivedR>& R,
Eigen::PlainObjectBase<DerivedS>& S) {
const size_t num_faces = F.rows();
Eigen::VectorXi I = igl::LinSpaced<Eigen::VectorXi>(num_faces, 0, num_faces-1);
igl::copyleft::cgal::closest_facet(V, F, I, P, uE2E, EMAP, R, S);
igl::copyleft::cgal::closest_facet(V, F, I, P, EMAP, uEC, uEE, R, S);
}
#ifdef IGL_STATIC_LIBRARY
// Explicit template instantiation
// generated by autoexplicit.sh
template void igl::copyleft::cgal::closest_facet<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, 3, 1, -1, 3>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 1, -1, -1>, unsigned long, Eigen::Matrix<int, -1, 1, 0, -1, 1>, CGAL::Epeck, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::PlainObjectBase<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 1, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 3, 1, -1, 3> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 1, -1, -1> > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > > const&, CGAL::AABB_tree<CGAL::AABB_traits<CGAL::Epeck, CGAL::AABB_triangle_primitive<CGAL::Epeck, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3> >::iterator, CGAL::Boolean_tag<false> > > > const&, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3> > const&, std::vector<bool, std::allocator<bool> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
template void igl::copyleft::cgal::closest_facet<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<CGAL::Epeck::FT, -1, 3, 1, -1, 3>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, CGAL::Epeck, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>>(Eigen::MatrixBase<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 1, -1, -1>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const&, Eigen::MatrixBase<Eigen::Matrix<CGAL::Epeck::FT, -1, 3, 1, -1, 3>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const&, std::vector<std::vector<size_t, std::allocator<size_t>>, std::allocator<std::vector<size_t, std::allocator<size_t>>>> const&, std::vector<std::vector<size_t, std::allocator<size_t>>, std::allocator<std::vector<size_t, std::allocator<size_t>>>> const&, CGAL::AABB_tree<CGAL::AABB_traits<CGAL::Epeck, CGAL::AABB_triangle_primitive<CGAL::Epeck, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3>>::iterator, CGAL::Boolean_tag<false>>, CGAL::Default>> const&, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3>> const&, std::vector<bool, std::allocator<bool>> const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>>&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>>&);
// generated by autoexplicit.sh
template void igl::copyleft::cgal::closest_facet<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 1, -1, -1>, unsigned long, Eigen::Matrix<int, -1, 1, 0, -1, 1>, CGAL::Epeck, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::PlainObjectBase<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 1, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 1, -1, -1> > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > > const&, CGAL::AABB_tree<CGAL::AABB_traits<CGAL::Epeck, CGAL::AABB_triangle_primitive<CGAL::Epeck, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3> >::iterator, CGAL::Boolean_tag<false> > > > const&, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3> > const&, std::vector<bool, std::allocator<bool> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
template void igl::copyleft::cgal::closest_facet<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 0, -1, -1>, unsigned long, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::PlainObjectBase<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<CGAL::Lazy_exact_nt<CGAL::Gmpq>, -1, -1, 0, -1, -1> > const&, std::vector<std::vector<unsigned long, std::allocator<unsigned long> >, std::allocator<std::vector<unsigned long, std::allocator<unsigned long> > > > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
#ifdef WIN32
template void igl::copyleft::cgal::closest_facet<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 0, -1, -1>, class Eigen::Matrix<int, -1, -1, 0, -1, -1>, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 0, -1, -1>, unsigned __int64, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class CGAL::Epeck, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class Eigen::Matrix<int, -1, 1, 0, -1, 1>>(class Eigen::PlainObjectBase<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 0, -1, -1>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, -1, 0, -1, -1>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 0, -1, -1>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class CGAL::AABB_tree<class CGAL::AABB_traits<class CGAL::Epeck, class CGAL::AABB_triangle_primitive<class CGAL::Epeck, class std::_Vector_iterator<class std::_Vector_val<struct std::_Simple_types<class CGAL::Triangle_3<class CGAL::Epeck>>>>, struct CGAL::Boolean_tag<0>>>> const &, class std::vector<class CGAL::Triangle_3<class CGAL::Epeck>, class std::allocator<class CGAL::Triangle_3<class CGAL::Epeck>>> const &, class std::vector<bool, class std::allocator<bool>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> &);
template void igl::copyleft::cgal::closest_facet<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 1, -1, -1>, class Eigen::Matrix<int, -1, -1, 0, -1, -1>, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 1, -1, -1>, unsigned __int64, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class CGAL::Epeck, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class Eigen::Matrix<int, -1, 1, 0, -1, 1>>(class Eigen::PlainObjectBase<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 1, -1, -1>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, -1, 0, -1, -1>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 1, -1, -1>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class CGAL::AABB_tree<class CGAL::AABB_traits<class CGAL::Epeck, class CGAL::AABB_triangle_primitive<class CGAL::Epeck, class std::_Vector_iterator<class std::_Vector_val<struct std::_Simple_types<class CGAL::Triangle_3<class CGAL::Epeck>>>>, struct CGAL::Boolean_tag<0>>>> const &, class std::vector<class CGAL::Triangle_3<class CGAL::Epeck>, class std::allocator<class CGAL::Triangle_3<class CGAL::Epeck>>> const &, class std::vector<bool, class std::allocator<bool>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> &);
template void igl::copyleft::cgal::closest_facet<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 1, -1, -1>, class Eigen::Matrix<int, -1, 3, 1, -1, 3>, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 1, -1, -1>, unsigned __int64, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class CGAL::Epeck, class Eigen::Matrix<int, -1, 1, 0, -1, 1>, class Eigen::Matrix<int, -1, 1, 0, -1, 1>>(class Eigen::PlainObjectBase<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 1, -1, -1>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 3, 1, -1, 3>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<class CGAL::Lazy_exact_nt<class CGAL::Gmpq>, -1, -1, 1, -1, -1>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class std::vector<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>, class std::allocator<class std::vector<unsigned __int64, class std::allocator<unsigned __int64>>>> const &, class CGAL::AABB_tree<class CGAL::AABB_traits<class CGAL::Epeck, class CGAL::AABB_triangle_primitive<class CGAL::Epeck, class std::_Vector_iterator<class std::_Vector_val<struct std::_Simple_types<class CGAL::Triangle_3<class CGAL::Epeck>>>>, struct CGAL::Boolean_tag<0>>>> const &, class std::vector<class CGAL::Triangle_3<class CGAL::Epeck>, class std::allocator<class CGAL::Triangle_3<class CGAL::Epeck>>> const &, class std::vector<bool, class std::allocator<bool>> const &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> &, class Eigen::PlainObjectBase<class Eigen::Matrix<int, -1, 1, 0, -1, 1>> &);
#endif
template void igl::copyleft::cgal::closest_facet<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<CGAL::Epeck::FT, -1, 3, 0, -1, 3>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, CGAL::Epeck, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>>(Eigen::MatrixBase<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 0, -1, -1>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const&, Eigen::MatrixBase<Eigen::Matrix<CGAL::Epeck::FT, -1, 3, 0, -1, 3>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>> const&, std::vector<std::vector<size_t, std::allocator<size_t>>, std::allocator<std::vector<size_t, std::allocator<size_t>>>> const&, std::vector<std::vector<size_t, std::allocator<size_t>>, std::allocator<std::vector<size_t, std::allocator<size_t>>>> const&, CGAL::AABB_tree<CGAL::AABB_traits<CGAL::Epeck, CGAL::AABB_triangle_primitive<CGAL::Epeck, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3>>::iterator, CGAL::Boolean_tag<false>>, CGAL::Default>> const&, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3>> const&, std::vector<bool, std::allocator<bool>> const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>>&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1>>&);
// generated by autoexplicit.sh
template void igl::copyleft::cgal::closest_facet<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 1, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, CGAL::Epeck, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(
Eigen::MatrixBase<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 1, -1, -1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&,
Eigen::MatrixBase<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 1, -1, -1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, std::vector<std::vector<size_t, std::allocator<size_t> >, std::allocator<std::vector<size_t, std::allocator<size_t> > > > const&, std::vector<std::vector<size_t, std::allocator<size_t> >, std::allocator<std::vector<size_t, std::allocator<size_t> > > > const&, CGAL::AABB_tree<CGAL::AABB_traits<CGAL::Epeck, CGAL::AABB_triangle_primitive<CGAL::Epeck, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3> >::iterator, CGAL::Boolean_tag<false> >, CGAL::Default> > const&, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3> > const&, std::vector<bool, std::allocator<bool> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
#include <cstdint>
template void igl::copyleft::cgal::closest_facet<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1>, CGAL::Epeck, Eigen::Matrix<int, -1, 1, 0, -1, 1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(
Eigen::MatrixBase<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 0, -1, -1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&,
Eigen::MatrixBase<Eigen::Matrix<CGAL::Epeck::FT, -1, -1, 0, -1, -1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&,
Eigen::MatrixBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> > const&, std::vector<std::vector<size_t, std::allocator<size_t> >, std::allocator<std::vector<size_t, std::allocator<size_t> > > > const&, std::vector<std::vector<size_t, std::allocator<size_t> >, std::allocator<std::vector<size_t, std::allocator<size_t> > > > const&, CGAL::AABB_tree<CGAL::AABB_traits<CGAL::Epeck, CGAL::AABB_triangle_primitive<CGAL::Epeck, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3> >::iterator, CGAL::Boolean_tag<false> >, CGAL::Default> > const&, std::vector<CGAL::Epeck::Triangle_3, std::allocator<CGAL::Epeck::Triangle_3> > const&, std::vector<bool, std::allocator<bool> > const&,
Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&,
Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
#endif