Example on how to save interpolated planes using postprocessing callback

[svchb]

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 68.56%. Comparing base (4af461d) to head (7956963).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #462   +/-   ##
=======================================
  Coverage   68.56%   68.56%           
=======================================
  Files          69       69           
  Lines        4040     4040           
=======================================
  Hits         2770     2770           
  Misses       1270     1270           

Flag	Coverage Δ
unit	68.56% <ø> (ø)

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[svchb]

Lets merge #466 than first and I will fix this.