parquet reader never outputs particles with moving=0

[poplarShift]

Hi, in #1259 I proposed a module to write to parquet files.

Now I'm noticing that it does not seem to ever output values where moving==0. As all other values seem to be correct, there must be something I do not understand about .history.

Is maybe this line to blame, and .mask masks out more than I thought?

opendrift/opendrift/export/io_parquet.py

Line 31 in c05d8b2

~self.history[k].mask[:, 0:num_steps_to_export]

If you do not have a good idea off the top of your heads, I'll try and debug with an MWE.

[knutfrode]

Hi,
There should actually not be anything specific about moving, it is just a particle property like any other proerties like length, lon, lat etc.
Thus I am not able to see immediately what could cause these problems.

However, in the (near?) future, we consider to change the datatype for history from record array to Xarray Dataset. This should hopefully simplify many things internally in OpenDrift.

[poplarShift]

Thanks - I'll try and set up an MWE, but will likely be a while before I find the time.