...  ...  @@ 44,7 +44,7 @@ IWR Heidelberg 


* Add an interface to obtain a linear basis transformation for each node. This allows, e.g., to flip basis functions (normal flip for RT), to permute basis functions or, in general, to transform to another local basis (Hermite elements). This should be exported as a matrix wrt the local basis function numbering in the node. Using special matrix types allows to express simple cases efficiently.



* Add an interface to obtain a "global" finite element which already contains the range space transformation and the element geometry transformation of the domain. It should not contain the basis transformation, because this can be done more efficiently outside.



* Possible problems: Implementing the interpolation into the global space using only the local basis transformations may not lead to the expected natural interpolation for



the corresponding FEspace, e.g., in case of Hermiteelements



the corresponding FEspace, e.g., in case of Hermiteelements. Since this problem results from the fact that we must extend the interpolation functionals to a larger space, this cannot be solved only based on the transformation without providing additional information.






### TypeTree



* Add a method `treePath(...)` that does the same as `hybridTreePath()`

...  ...  @@ 52,3 +52,5 @@ the corresponding FEspace, e.g., in case of Hermiteelements 


* Derive from/wrap `TupleVector` in `HybridTreePath`



* Get rid of `backIndex()` if possible






### DuneLocalfunctions



* Get rid of 