Replace `Extract Level` with `Extract Block` in the common filters
The Extract Level
filter (currently given the icon ) should be removed from the common filters menu.
There are a couple of problems with this filter as is. First, the icon clearly suggests that it should be able to invert the Group Datasets
filter, which has the similar icon . However, these filters cannot inverse each other. If you group some input with Group Datasets
, the Extract Level
filter is still grayed out. In fact, in over 15 years of using ParaView, I cannot recall a single dataset I had or generated that worked with this filter. I think it's safe to say that this is not a "common" filter.
The Extract Level
filter should be replaced with the Extract Block
. The Extract Block
filter is much more general and able to pull blocks out of any multi-block data set. This makes it much more appropriate for the common filters toolbar. First, it is actually a common operation. Second, it can do the implied inversion of the Group Datasets
filter.