[new] added new function to read metadata from disk
this new function prevents multiple reading of large dataless seed volume to enhance overall performance
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c73435dec3
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@ -155,22 +155,16 @@ def evt_head_check(root_dir, out_dir = None):
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print(nfiles)
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def restitute_data(data, path_to_inventory, unit='VEL', force=False):
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def read_metadata(path_to_inventory):
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"""
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takes a data stream and a path_to_inventory and returns the corrected
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waveform data stream
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:param data: seismic data stream
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:param path_to_inventory: path to inventory folder or file
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:param unit: unit to correct for (default: 'VEL')
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:param force: force restitution for already corrected traces (default:
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True)
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:return: corrected data stream
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take path_to_inventory and return either the corresponding list of files
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found or the Parser object for a network dataless seed volume to prevent
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read overhead for large dataless seed volumes
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:param path_to_inventory:
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:return: tuple containing a either list of files or `obspy.io.xseed.Parser`
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object and the inventory type found
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:rtype: tuple
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"""
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restflag = list()
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data = remove_underscores(data)
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dlfile = list()
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invfile = list()
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respfile = list()
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@ -185,12 +179,35 @@ def restitute_data(data, path_to_inventory, unit='VEL', force=False):
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invtype = key_for_set_value(inv)
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if invtype is None:
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print("Neither dataless-SEED file,inventory-xml file nor RESP-file "
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"found!")
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return data, False
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elif invtype == 'dless': # prevent multiple read of large dlsv
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raise IOError("Neither dataless-SEED file, inventory-xml file nor "
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"RESP-file found!")
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elif invtype == 'dless': # prevent multiple read of large dlsv
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if len(inv[invtype]) == 1:
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fname = Parser(inv[invtype][0])
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robj = Parser(inv[invtype][0])
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else:
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robj = inv[invtype]
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else:
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robj = inv[invtype]
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return invtype, robj
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def restitute_data(data, invtype, inobj, unit='VEL', force=False):
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"""
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takes a data stream and a path_to_inventory and returns the corrected
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waveform data stream
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:param data: seismic data stream
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:param invtype: type of found metadata
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:param inobj: either list of metadata files or `obspy.io.xseed.Parser`
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object
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:param unit: unit to correct for (default: 'VEL')
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:param force: force restitution for already corrected traces (default:
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False)
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:return: corrected data stream
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"""
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restflag = list()
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data = remove_underscores(data)
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# loop over traces
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for tr in data:
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@ -208,7 +225,7 @@ def restitute_data(data, path_to_inventory, unit='VEL', force=False):
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stime = tr.stats.starttime
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prefilt = get_prefilt(tr)
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if invtype == 'resp':
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fresp = find_in_list(inv[invtype], seed_id)
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fresp = find_in_list(inobj, seed_id)
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if not fresp:
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raise IOError('no response file found '
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'for trace {0}'.format(seed_id))
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@ -218,14 +235,16 @@ def restitute_data(data, path_to_inventory, unit='VEL', force=False):
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units=unit)
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kwargs = dict(paz_remove=None, pre_filt=prefilt, seedresp=seedresp)
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elif invtype == 'dless':
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if len(inv[invtype]) > 1:
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fname = Parser(find_in_list(inv[invtype], seed_id))
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if type(inobj) is list:
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fname = Parser(find_in_list(inobj, seed_id))
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else:
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fname = inobj
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seedresp = dict(filename=fname,
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date=stime,
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units=unit)
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kwargs = dict(pre_filt=prefilt, seedresp=seedresp)
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elif invtype == 'xml':
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invlist = inv[invtype]
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invlist = inobj
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if len(invlist) > 1:
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finv = find_in_list(invlist, seed_id)
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else:
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