[Dune] gmsh mesh loading using dune-uggrid

[Stary, Tomas]

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
>