[Paraview] Comparing datasets - taking a difference

[amayt]

Hello,

When comparing datasets, you can use the following procedures to
integrate multiple data.  However, the resulting data contains
multiple data arrays in addition to the original data, which increases
the data size.  For example, the data 'h0' is a copy of 'h' in the
following case, so it seems like that 'h' is no longer necessary.  Is
it possible to remove such data arrays?

Any other suggestions to decrease the data size would be appreciated.

> 1) Use Calculator #0 to rename the variable from dataset #0
>   (eg pick just 'h' with result array name 'h0')
> 2) Use Calculator #1 to rename the variable from dataset #1
>   (eg 'h' to 'h1')
> 3) Use "Append Attributes" while having selected both Calculator #0
>   and #1 to combine the output from 1) and 2). AppendAttributes1
>   now contains 'h0', 'h1' as well as 'h' (which one?).
> 4) Use Calculator #2 on AppendAttributes1 to take difference (eg h1-h0).