new functions added for event creation purposes:
getHash - returns a hash string from an UTCDateTime object createResourceID - returns a valid PyLoT resourceID for arbitrary types of event data createOrigin - returns an ObsPy Origin object (work in progress) createEvent - returns an ObsPy Event object (work in progress) createPick - returns an ObsPy Pick object (work in progress) createArrival - returns an ObsPy Arrival object (work in progress)
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parent
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@ -5,6 +5,8 @@
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import os
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import pwd
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import re
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import hashlib
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from obspy.core import UTCDateTime
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import obspy.core.event as ope
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def fnConstructor(s):
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@ -20,11 +22,94 @@ def fnConstructor(s):
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fn = '_' + fn
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return fn
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def createEvent(origintime, latitude, longitude, depth, **kwargs):
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evt = ope.Event()
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def getHash(origintime):
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'''
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def createArrival(picknum, picktime, eventnum, station, cinfo, phase, wfname,
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authority_id):
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:param origintime:
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:return:
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'''
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hg = hashlib.sha1()
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hg.update(origintime.strftime('%Y-%m-%d %H:%M:%S.%f'))
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return hg.hexdigest()
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def createResourceID(timetohash, restype, authority_id=None):
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'''
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:param timetohash:
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:param restype:
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:param authority_id:
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:return:
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'''
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assert isinstance(timetohash, UTCDateTime), "'timetohash' is not an ObsPy" \
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"UTCDateTime object"
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hid = getHash(timetohash)
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resID = ope.ResourceIdentifier(restype + '/' + hid[0:6])
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if authority_id is not None:
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resID.convertIDToQuakeMLURI(authority_id=authority_id)
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def createOrigin(origintime, latitude, longitude, depth, resID=None,
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authority_id=None):
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'''
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createOrigin - function to create an ObsPy Origin
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:param origintime: the origins time of occurence
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:type origintime: :class: `~obspy.core.utcdatetime.UTCDateTime` object
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:param latitude: latitude in decimal degree of the origins location
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:type latitude: float
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:param longitude: longitude in decimal degree of the origins location
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:type longitude: float
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:param depth: hypocentral depth of the origin
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:type depth: float
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:return: An ObsPy :class: `~obspy.core.event.Origin` object
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'''
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pass
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def createEvent(origintime, cinfo, etype, resID=None,
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authority_id=None, **kwargs):
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'''
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createEvent - funtion to create an ObsPy Event
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:param origintime: the events origintime
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:type origintime: :class: `~obspy.core.utcdatetime.UTCDateTime` object
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:param cinfo:
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:param etype:
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:param resID:
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:param authority_id:
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:param kwargs:
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:return: An ObsPy :class: `~obspy.core.event.Event` object
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'''
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etype = ope.EventType(etype)
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if resID is None:
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resID = createResourceID(origintime, etype, authority_id)
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event = ope.Event(resource_id=resID)
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event.creation_info = cinfo
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event.event_type = etype
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return event
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def createPick(picknum, picktime, eventnum, cinfo, phase, station, wfseedstr,
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authority_id):
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'''
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createPick - function to create an ObsPy Pick
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:param picknum: number of the created pick
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:type picknum: int
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:param eventnum: human-readable event identifier
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:type eventnum: str
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:param cinfo: An ObsPy :class: `~obspy.core.event.CreationInfo` object
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holding information on the creation of the returned object
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:type cinfo: :class: `~obspy.core.event.CreationInfo` object
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:param phase: name of the arrivals seismic phase
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:type phase: str
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:param station: name of the station at which the seismic phase has been
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picked
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:type station: str
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:param wfseedstr: A SEED formatted string of the form
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network.station.location.channel in order to set a referenced waveform
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:type wfseedstr: str, SEED formatted
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:param authority_id: name of the institution carrying out the processing
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:type authority_id: str
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:return: An ObsPy :class: `~obspy.core.event.Pick` object
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'''
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pickID = 'pick/' + eventnum + '/' + station + '/{0:3d}'.format(picknum)
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pickresID = ope.ResourceIdentifier(id=pickID)
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pickresID.convertIDToQuakeMLURI(authority_id=authority_id)
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@ -33,8 +118,33 @@ def createArrival(picknum, picktime, eventnum, station, cinfo, phase, wfname,
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pick.time = picktime
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pick.creation_info = cinfo
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pick.phase_hint = phase
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pick.waveform_id = ope.ResourceIdentifier(id=wfname, prefix='file:/')
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pick.waveform_id = ope.ResourceIdentifier(id=wfseedstr, prefix='file:/')
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return pick
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def createArrival(pickresID, eventnum, cinfo, phase, station, authority_id,
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azimuth=None, dist=None):
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'''
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createArrival - function to create an Obspy Arrival
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:param pickresID: Resource identifier of the created pick
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:type pickresID: :class: `~obspy.core.event.ResourceIdentifier` object
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:param eventnum: human-readable event identifier
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:type eventnum: str
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:param cinfo: An ObsPy :class: `~obspy.core.event.CreationInfo` object
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holding information on the creation of the returned object
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:type cinfo: :class: `~obspy.core.event.CreationInfo` object
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:param phase: name of the arrivals seismic phase
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:type phase: str
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:param station: name of the station at which the seismic phase has been
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picked
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:type station: str
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:param authority_id: name of the institution carrying out the processing
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:type authority_id: str
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:param azimuth: azimuth between source and receiver
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:type azimuth: float or int, optional
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:param dist: distance between source and receiver
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:type dist: float or int, optional
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:return: An ObsPy :class: `~obspy.core.event.Arrival` object
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'''
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arriID = 'arrival/' + eventnum + '/' + station + '/{0}'.format(phase)
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arriresID = ope.ResourceIdentifier(id=arriID)
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arriresID.convertIDToQuakeMLURI(authority_id=authority_id)
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@ -42,10 +152,13 @@ def createArrival(picknum, picktime, eventnum, station, cinfo, phase, wfname,
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arrival.resource_id = arriresID
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arrival.creation_info = cinfo
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arrival.pick_id = pickresID
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arrival.phase = pick.phase_hint
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azi = self.location[eventid]['Backazimuth'] - 180
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arrival.azimuth = azi if azi > -180 else azi + 360
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arrival.distance = self.location[eventid]['Distance']['deg']
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arrival.phase = phase
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if azimuth is not None:
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arrival.azimuth = float(azimuth) if azimuth > -180 else azimuth + 360
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else:
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arrival.azimuth = azimuth
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arrival.distance = None
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return arrival
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def getOwner(fn):
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return pwd.getpwuid(os.stat(fn).st_uid).pw_name
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