We would like to improve the usability of the combigrid module. This issue here to collect different aspects, starting with:

Analysis of Issues

• Interface: no access to grids themselves (always operators with very specific class names)
• So many wrapper classes

Desired basic interface functionality for grids

• generate grids
• access on grids (also interpolated values)
• conversion to sgpp grids

What we'd like to keep from the current implementation

• different bases in different directions
• the functionality in the common folder: index iterators etc., especially those used from LevelManager (generate combischemes by defining grids that should be in the scheme)

Feel free to add to the discussion - this will likely be addressed in the medium run.