Merge branch 'issue/interpolate-changes' into 'master'

removed dependency on dune-functions interpolate due to breaking changes

See merge request !130

test/DataTransferTest.hpp

@@ -84,22 +84,22 @@ double calcError(Problem const& prob, Fcts const& funcs)
   auto& globalBasis = *prob->globalBasis();
   auto localView = globalBasis.localView();
   auto const& sol = prob->solution().coefficients();
-  std::vector<double> ref;
-  ref.resize(globalBasis.dimension());
+
+  auto ref = makeDOFVector(globalBasis, DataTransferOperation::NO_OPERATION);
   int k = 0;
 
   // interpolate given function onto reference vector
   for_each_leaf_node(localView.tree(), [&](auto const& node, auto tp)
   {
     auto gf = makeGridFunction(funcs[k], globalBasis.gridView());
-    Dune::Functions::interpolate(globalBasis, tp, ref, gf);
+    AMDiS::interpolate(globalBasis, ref, gf, tp);
     k++;
   });
 
   // compare the solution with the reference
   double maxError = 0;
   sol.forEach([&](auto dof, double coeff) {
-    double error = std::abs(ref[dof] - coeff);
+    double error = std::abs(ref.at(dof) - coeff);
     maxError = std::max(maxError, error);
   });
   return maxError;