CGAL users discussion list

[Dror Atariah <>]

1. I tried to recompile the example with the new .h file Philipp attached and 
using 3.1.0 release of Eigen3. This ended with the following compilation 
error:

---(Error cite)---
/Users/drorata/Library/eigen3.1.0/Eigen/src/Core/util/Meta.h: In copy 
constructor 
‘Eigen::IterativeSolverBase<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > 
>::IterativeSolverBase(const 
Eigen::IterativeSolverBase<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > >&)’:
/Users/drorata/Library/eigen3.1.0/Eigen/src/IterativeLinearSolvers/IterativeSolverBase.h:37:
   instantiated from ‘bool 
CGAL::Poisson_reconstruction_function<Gt>::compute_implicit_function() [with 
Gt = CGAL::Epick]’
/Users/drorata/Documents/academics/programing/CGAL/Surface_reconstruction_points_3_CGAL_4/poisson_reconstruction_example.cpp:66:
   instantiated from here
/Users/drorata/Library/eigen3.1.0/Eigen/src/Core/util/Meta.h:113: error: 
‘Eigen::internal::noncopyable::noncopyable(const 
Eigen::internal::noncopyable&)’ is private
/Users/drorata/Library/eigen3.1.0/Eigen/src/IterativeLinearSolvers/IterativeSolverBase.h:37:
 error: within this context
/Users/drorata/Library/eigen3.1.0/Eigen/src/IterativeLinearSolvers/ConjugateGradient.h:
 In copy constructor ‘Eigen::ConjugateGradient<Eigen::SparseMatrix<double, 0, 
int>, 1, Eigen::DiagonalPreconditioner<double> >::ConjugateGradient(const 
Eigen::ConjugateGradient<Eigen::SparseMatrix<double, 0, int>, 1, 
Eigen::DiagonalPreconditioner<double> >&)’:
/Users/drorata/Library/eigen3.1.0/Eigen/src/IterativeLinearSolvers/ConjugateGradient.h:160:
   instantiated from ‘bool 
CGAL::Poisson_reconstruction_function<Gt>::compute_implicit_function() [with 
Gt = CGAL::Epick]’
/Users/drorata/Documents/academics/programing/CGAL/Surface_reconstruction_points_3_CGAL_4/poisson_reconstruction_example.cpp:66:
   instantiated from here
/Users/drorata/Library/eigen3.1.0/Eigen/src/IterativeLinearSolvers/ConjugateGradient.h:160:
 note: synthesized method 
‘Eigen::IterativeSolverBase<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > 
>::IterativeSolverBase(const 
Eigen::IterativeSolverBase<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > >&)’ first required here 
/opt/local/include/CGAL/Eigen_solver_traits.h: In copy constructor 
‘CGAL::Eigen_solver_traits<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > 
>::Eigen_solver_traits(const 
CGAL::Eigen_solver_traits<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > >&)’:
/opt/local/include/CGAL/Eigen_solver_traits.h:58:   instantiated from ‘bool 
CGAL::Poisson_reconstruction_function<Gt>::compute_implicit_function() [with 
Gt = CGAL::Epick]’
/Users/drorata/Documents/academics/programing/CGAL/Surface_reconstruction_points_3_CGAL_4/poisson_reconstruction_example.cpp:66:
   instantiated from here
/opt/local/include/CGAL/Eigen_solver_traits.h:58: note: synthesized method 
‘Eigen::ConjugateGradient<Eigen::SparseMatrix<double, 0, int>, 1, 
Eigen::DiagonalPreconditioner<double> >::ConjugateGradient(const 
Eigen::ConjugateGradient<Eigen::SparseMatrix<double, 0, int>, 1, 
Eigen::DiagonalPreconditioner<double> >&)’ first required here 
/opt/local/include/CGAL/Poisson_reconstruction_function.h: In member function 
‘bool CGAL::Poisson_reconstruction_function<Gt>::compute_implicit_function() 
[with Gt = CGAL::Epick]’:
/opt/local/include/CGAL/Poisson_reconstruction_function.h:264: note: 
synthesized method 
‘CGAL::Eigen_solver_traits<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > 
>::Eigen_solver_traits(const 
CGAL::Eigen_solver_traits<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > >&)’ first required here 
make[3]: *** 
[CMakeFiles/poisson_reconstruction_example.dir/poisson_reconstruction_example.cpp.o]
 Error 1
make[2]: *** [CMakeFiles/poisson_reconstruction_example.dir/all] Error 2
make[1]: *** [CMakeFiles/poisson_reconstruction_example.dir/rule] Error 2
make: *** [poisson_reconstruction_example] Error 2
---(Error Cite END)---
which I think I already had once.

2. I then reverted back to 3.1.0-alpha1 release of Eigen and this time the 
compilation (as expected) was OK, but when running it I got the segmentation 
error. So I tried to recompile in the debug mode. Here's the output of the 
"backtrace" of "gdb":
---(gdb Backtarce)---
#0  0x0000000100033e4f in 
Eigen::DiagonalPreconditioner<double>::compute<Eigen::SparseMatrix<double, 0, 
int> > ()
#1  0x0000000100068bcc in 
CGAL::Poisson_reconstruction_function<CGAL::Epick>::solve_poisson<CGAL::Eigen_solver_traits<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > > > ()
#2  0x000000010006c375 in 
CGAL::Poisson_reconstruction_function<CGAL::Epick>::compute_implicit_function<CGAL::Eigen_solver_traits<Eigen::ConjugateGradient<Eigen::SparseMatrix<double,
 0, int>, 1, Eigen::DiagonalPreconditioner<double> > > > ()
#3  0x000000010000f1d3 in main ()
---(gdb Backtrace END)---

So, at the end of the day, I'm still facing a dead end...