Use LagrangeBasis instead of PQkNodalBasis

The latter is deprecated in dune-functions 2.6.

dune/elasticity/common/trustregionsolver.cc

@@ -3,7 +3,7 @@
 
 #include <dune/istl/io.hh>
 
-#include <dune/functions/functionspacebases/pqknodalbasis.hh>
+#include <dune/functions/functionspacebases/lagrangebasis.hh>
 
 #include <dune/fufem/functionspacebases/p1nodalbasis.hh>
 #include <dune/fufem/assemblers/operatorassembler.hh>
@@ -151,7 +151,7 @@ setup(const typename BasisType::GridView::Grid& grid,
     ////////////////////////////////////////////////////////////////////////
 
     typedef BasisType Basis;
-    bool isP1Basis = std::is_same<Basis,DuneFunctionsBasis<Dune::Functions::PQkNodalBasis<typename Basis::GridView, 1> > >::value;
+    bool isP1Basis = std::is_same<Basis,DuneFunctionsBasis<Dune::Functions::LagrangeBasis<typename Basis::GridView, 1> > >::value;
 
     
     using TransferOperatorType = typename TruncatedCompressedMGTransfer<CorrectionType>::TransferOperatorType;

src/finite-strain-elasticity.cc

@@ -18,7 +18,6 @@
 #include <dune/grid/io/file/gmshreader.hh>
 #include <dune/grid/io/file/vtk.hh>
 
-#include <dune/functions/functionspacebases/pqknodalbasis.hh>
 #include <dune/functions/functionspacebases/interpolate.hh>
 #include <dune/functions/functionspacebases/lagrangebasis.hh>
 #include <dune/functions/gridfunctions/discreteglobalbasisfunction.hh>
@@ -144,7 +143,7 @@ int main (int argc, char *argv[]) try
   GridView gridView = grid->leafGridView();
 
   // FE basis spanning the FE space that we are working in
-  typedef Dune::Functions::PQkNodalBasis<GridView, 2> FEBasis;
+  typedef Dune::Functions::LagrangeBasis<GridView, order> FEBasis;
   FEBasis feBasis(gridView);
 
   // dune-fufem-style FE basis for the transition from dune-fufem to dune-functions