Detailed Description
Though a DUNE grid is hierarchic, one often only needs access to a certain level of the grid. These views are provided by an implementation of
GridView. Each grid exports a LevelGridView and a LeafGridView, corresponding to the two different types of levels.
A grid view provides the following functionality:
- The index set for the grid level can be accessed by the indexSet() method.
- A pair of begin() / end() methods provide iterators for each codimension.
- A pair of ibegin() / iend() methods return suitable intersection iterators for a given entity of codimension 0.
- For parallel computations, a suitable communicate() method is provided.
- The underlying grid can be accessed through the grid() method.
A
GridView is obtained from the grid by calling one of the levelView() or leafView() methods.