Leginon

r17163 show such a map in summary.php in the same section as autofocus. It uses autofocus results to map the height by position. Note that this graph does not know that more than one grid may be used during the session and would map all data as if one.

I am still unsure why there are large variation at the close position in some sessions even though the query should only pick up successful ones.

Anyone can test; Just visit summary.php of a large data collection.