export some types and add method to get the global basis

[[Imported from SVN: r11177]]

dune/elasticity/materials/geomexactstvenantkirchhoffmaterial.hh

@@ -5,6 +5,7 @@
 
 #include <dune/fufem/symmetrictensor.hh>
 #include <dune/fufem/functions/virtualgridfunction.hh>
+#include <dune/fufem/functions/basisgridfunction.hh>
 
 #include <dune/fufem/assemblers/localassemblers/geononlinstvenantfunctionalassembler.hh>
 #include <dune/fufem/assemblers/localassemblers/geononlinlinearizedstvenantassembler.hh>
@@ -17,21 +18,24 @@
 template <class Basis>
 class GeomExactStVenantMaterial
 {
+public:
     typedef typename Basis::GridView::Grid GridType;
+    typedef typename Basis::LocalFiniteElement Lfe;    
+
+    typedef GeomNonlinElasticityFunctionalAssembler<GridType> LocalLinearization;
+    typedef GeomNonlinLinearizedStVenantAssembler<GridType, Lfe, Lfe> LocalHessian;
+    typedef Basis GlobalBasis;
+
+private:
     typedef typename GridType::ctype ctype;
 
     static const int dim = GridType::dimension;
     static const int dimworld = GridType::dimensionworld;
 
-    typedef typename Basis::LocalFiniteElement Lfe;    
-
-    typedef VirtualGridFunction<GridType, Dune::FieldVector<double,GridType::dimension> > GridFunction;
     typedef typename GridType::template Codim<0>::Geometry::LocalCoordinate LocalCoordinate; 
     typedef typename GridType::template Codim<0>::LeafIterator ElementIterator; 
 
 public:
-    typedef GeomNonlinElasticityFunctionalAssembler<GridType> LocalLinearization;
-    typedef GeomNonlinLinearizedStVenantAssembler<GridType, Lfe, Lfe> LocalHessian;
 
     GeomExactStVenantMaterial(const Basis& basis, ctype E, ctype nu) :
         localLinearization_(E,nu),
@@ -72,7 +76,7 @@ public:
                 const ctype integrationElement = eIt->geometry().integrationElement(quadPos);
 
                 // evaluate displacement gradient at the quadrature point
-                typename GridFunction::DerivativeType localConfGrad;
+                typename BasisGridFunction<Basis,CoeffType>::DerivativeType localConfGrad;
 
                 if (configuration.isDefinedOn(*eIt))
                     configuration.evaluateDerivativeLocal(*eIt, quadPos, localConfGrad);
@@ -101,6 +105,9 @@ public:
     //! Return the local assembler of the second derivative of the strain energy 
     LocalHessian& secondDerivative() {return localHessian_;}
 
+    //! Return the global basis
+    const Basis& basis() {return basis_;}
+
 private:
     //! First derivative of the strain energy
     LocalLinearization localLinearization_;