# Copyright (c) 2013,Vienna University of Technology, Department of Geodesy and Geoinformation
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'''
Created on Aug 1, 2013
@author: Christoph Paulik christoph.paulik@geo.tuwien.ac.at
'''
import os
import pytesmo.io.ismn.readers as readers
import numpy as np
[docs]def collect_from_folder(rootdir):
"""
function walks the rootdir directory and looks for network
folders and ISMN datafiles. It collects metadata for every
file found and returns a numpy.ndarray of metadata
Parameters
----------
rootdir : string
root directory on filesystem where the ISMN data was unzipped to
Returns
-------
metadata : numpy.ndarray
structured numpy array which contains the metadata for one file per row
"""
metadata_catalog = []
for root, subFolders, files in os.walk(rootdir):
# print root,subFolders,files
for filename in files:
fullfilename = os.path.join(root, filename)
try:
metadata = readers.get_metadata(fullfilename)
except (readers.ReaderException, IOError) as e:
continue
for i, variable in enumerate(metadata['variable']):
metadata_catalog.append((metadata['network'], metadata['station'],
variable, metadata['depth_from'][
i], metadata['depth_to'][i],
metadata['sensor'], metadata[
'longitude'], metadata['latitude'],
metadata['elevation'], fullfilename))
return np.array(metadata_catalog, dtype=np.dtype([('network', object), ('station', object), ('variable', object),
('depth_from',
np.float), ('depth_to', np.float),
('sensor', object), ('longitude',
np.float), ('latitude', np.float),
('elevation', np.float), ('filename', object)]))