The flow of _Undetect, _Fillvalue/nodata is currently not coherent for all backends/readers.
The main issue is correctly moving attributes while reading and writing (eg. ODIM_H5).
As _Undetect is a special CfRadial2 attribute (AFAIR) it is not handled by xarray decoding and we might need to handle that within xradar. So best would be to add _Undetect to encoding attribute of the data variable to keep it around until writing.
[x] to_odim #71
[x] Furuno - No _Undetect, only nodata/_FillValue #71
Description
The flow of
_Undetect,_Fillvalue/nodatais currently not coherent for all backends/readers. The main issue is correctly moving attributes while reading and writing (eg.ODIM_H5).As
_Undetectis a special CfRadial2 attribute (AFAIR) it is not handled by xarray decoding and we might need to handle that within xradar. So best would be to add_Undetecttoencodingattribute of the data variable to keep it around until writing.to_odim#71_Undetect, onlynodata/_FillValue#71