I know that we have PointData with attributes, CellData with attributes and FieldData, but I am not aware of anything like BlockData: This would be the thing that I would actually like to use if possible!
But maybe there are other ways to attach informations to the blocks that I do not understand yet!?
I have seen and used so far the possibility to assign labels to these blocks that will appear in the “Multi Block Manager” panel with this:
I must admit that I have not really understood the logic of this vtkInformation system that seems to be very tricky and powerful, but maybe that would be a way to somehow attach information to blocks that can be evaluated by some other functions later on, or even “survive” being written to a vtm file (file set)?