[Dune] gmsh mesh loading using dune-uggrid

[Stary, Tomas]

Thanks. I have initialised the module from scratch and it works now.

Tomas

On Tue Apr 25 12:36:21 CEST 2017, Simon Praetorius wrote:
> OK, my answer was a bit too fast.
> 
> You have a linker problem. It seems you are not linking correctly
> agains dune-uggrid. This is what the error tells you.
> 
> Since I don't know how you have setup your project, I can only guess:
> 
> - add `target_link_dune_default_libraries(your_target)` in your cmake file
> - set all ug flags correctly, i.e. `add_dune_ug_flags(your_target)`
> - make sure the module dune-uggrid is found and activated correctly
> (e.g. put it into your required section of dune-module)
> 
> Simon
> 
> On Tue, Apr 25, 2017 at 11:15:32AM +0100, Stary, Tomas wrote:
> > Thanks, Simon, unfortunatelly the issue with the code remains the
> > same:
> > 
> > CMakeFiles/dune-poroelastic.dir/dune-poroelastic.cc.o: In function `main':
> > /home/tom/Work/dune/dune-poroelastic/src/dune-poroelastic.cc:43: undefined reference to `Dune::GridFactory<Dune::UGGrid<3> >::GridFactory()'
> > /home/tom/Work/dune/dune-poroelastic/src/dune-poroelastic.cc:45: undefined reference to `Dune::GridFactory<Dune::UGGrid<3> >::createGrid()'
> > /home/tom/Work/dune/dune-poroelastic/src/dune-poroelastic.cc:43: undefined reference to `Dune::GridFactory<Dune::UGGrid<3> >::~GridFactory()'
> > /home/tom/Work/dune/dune-poroelastic/src/dune-poroelastic.cc:43: undefined reference to `Dune::GridFactory<Dune::UGGrid<3> >::~GridFactory()'
> > CMakeFiles/dune-poroelastic.dir/dune-poroelastic.cc.o: In function `std::default_delete<Dune::UGGrid<3> >::operator()(Dune::UGGrid<3>*) const':
> > /usr/include/c++/6.3.1/bits/unique_ptr.h:76: undefined reference to `Dune::UGGrid<3>::~UGGrid()'
> > collect2: error: ld returned 1 exit status
> > 
> > > On Tue, Apr 25, 2017 at 11:50:57AM , Simon Praetorius wrote:
> > >
> > > You could use a GridFactory to actually create your grid from a
> > > corresponding reader:
> > > 
> > > ```
> > > using Grid = Dune::UGGrid<dim>;
> > > 
> > > Dune::GridFactory<Grid> gridFactory;
> > > Dune::GmshReader<Grid>::read(gridFactory, filename);
> > > std::unique_ptr<Grid> grid( gridFactory.createGrid() );
> > > ```
> > > 
> > > Simon
> > > 
> > > 
> > > On Tue, Apr 25, 2017 at 10:22:08AM +0100, Stary, Tomas wrote:
> > > > Hi,
> > > > 
> > > > Thanks, the updating of the dune-grit repository has been helpful.  I
> > > > have been able to compile the code including the required header
> > > > files.
> > > > 
> > > > I am now trying to initialise the uggrid with the following code:
> > > > 
> > > >       typedef Dune::UGGrid<dim> GRID;
> > > >       GRID grid;
> > > > 
> > > > During the compilation I get a linking error:
> > > > 
> > > > CMakeFiles/dune-poroelastic.dir/dune-poroelastic.cc.o: In function `main':
> > > > /home/tom/Work/dune/dune-poroelastic/src/dune-poroelastic.cc:34: undefined reference to `Dune::UGGrid<3>::UGGrid()'
> > > > /home/tom/Work/dune/dune-poroelastic/src/dune-poroelastic.cc:34: undefined reference to `Dune::UGGrid<3>::~UGGrid()'
> > > > collect2: error: ld returned 1 exit status
> > > > 
> > > > Is there any other way of initialising the UGGrid?
> > > > 
> > > > Thank you,
> > > > 
> > > > Tomas
> > > > 
> > > > On Mon, Apr 24, 2017 at 11:09:48AM +0100, Stary, Tomas wrote:
> > > > > Hi,
> > > > > 
> > > > > I would like to load a mesh created in gmsh program into dune using
> > > > > dune-uggrid module. For that I have created a new project dependent on
> > > > > dune-uggrid and included required header files to the project:
> > > > > 
> > > > > #include <dune/grid/uggrid.hh>
> > > > > #include <dune/grid/common/gridfactory.hh>
> > > > > #include <dune/grid/common/gridinfo.hh>
> > > > > 
> > > > > When I try to compile the code I get the following error:
> > > > > 
> > > > > /home/tom/Work/dune/dune-grid/dune/grid/uggrid/ugwrapper.hh: In static member function 'static UG::DOUBLE Dune::UG_NS<2>::SurfaceElement(int, const DOUBLE (*)[2], const DOUBLE*)':
> > > > > /home/tom/Work/dune/dune-grid/dune/grid/uggrid/ugwrapper.hh:876:11: error: 'SurfaceElement' is not a member of 'UG::D2'
> > > > >        if (UG_NAMESPACE ::SurfaceElement(UG_DIM, nc, co_global, ip_local, &result))
> > > > > 
> > > > > I am using a Linux machine, the same configuration works fine with a
> > > > > different version of uggrid on Mac.
> > > > > 
> > > > > Do you have any suggestions on how to get over this issue, please?
> > > > > 
> > > > > Many thanks,
> > > > > 
> > > > > Tomas
> > > 
>