"""Module to open the lidar original output
"""
# code to open lidar files
# by José Dias Neto, 17.03.2021
#
import xarray as xr
[docs]class getLidarData:
"""Windcube's data reader
It opens and reads the original NetCDF output
from the Windcube lidar
Parameters
----------
fileName : str
name of the file that will be open
"""
[docs] def __init__(self, fileName):
self.fileName = fileName
def openLidarFile(self):
"""
Function to read the lidar NetCDF files
Returns
-------
tmpData : xarray.DataSet
a dataset from the original NetCDF files
"""
tmpData = xr.open_dataset(self.fileName)
grpName = tmpData.sweep_group_name.values[0]
tmpData.close()
# retrieving the group dataset
tmpData = xr.open_dataset(
self.fileName, group=grpName, decode_times=False
)
# decoding time
timeRef = tmpData.time_reference.values
tmpData.time.attrs["units"] = "seconds since {0}".format(timeRef)
tmpData = xr.decode_cf(tmpData)
return tmpData