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Python Event.creation_info方法代码示例

本文整理汇总了Python中obspy.core.event.Event.creation_info方法的典型用法代码示例。如果您正苦于以下问题:Python Event.creation_info方法的具体用法?Python Event.creation_info怎么用?Python Event.creation_info使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在obspy.core.event.Event的用法示例。


在下文中一共展示了Event.creation_info方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: _parse_event

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
    def _parse_event(self, first_line):
        """
        Parse an event.

        :type first_line: str
        :param first_line: First line of an event block, which contains
            the event id.
        :rtype: :class:`~obspy.core.event.event.Event`
        :return: The parsed event or None.
        """
        event_id = first_line[5:].strip()
        # Skip event without id
        if not event_id:
            self._warn('Missing event id')
            return None

        event = Event()

        origin, origin_res_id = self._parse_origin(event)
        # Skip event without origin
        if not origin:
            return None

        line = self._skip_empty_lines()

        self._parse_region_name(line, event)
        self._parse_arrivals(event, origin, origin_res_id)

        # Origin ResourceIdentifier should be set at the end, when
        # Arrivals are already set.
        origin.resource_id = origin_res_id
        event.origins.append(origin)

        event.preferred_origin_id = origin.resource_id.id

        # Must be done after the origin parsing
        event.creation_info = self._get_creation_info()

        public_id = "event/%s" % event_id
        event.resource_id = self._get_res_id(public_id)

        event.scope_resource_ids()

        return event
开发者ID:Brtle,项目名称:obspy,代码行数:46,代码来源:bulletin.py

示例2: brightness

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]

#.........这里部分代码省略.........
        cum_net_trace.stats.channel = ''
        cum_net_trace.stats.network = 'Z'
        cum_net_trace.stats.location = ''
        cum_net_trace.stats.starttime = stream[0].stats.starttime
        cum_net_trace = obspy.Stream(cum_net_trace)
        cum_net_trace += stream.select(channel='*N')
        cum_net_trace += stream.select(channel='*1')
        cum_net_trace.sort(['network', 'station', 'channel'])
        # np.save('cum_net_resp.npy',cum_net_resp)
        #     cum_net_trace.plot(size=(800,600), equal_scale=False,\
        #                        outfile='NR_timeseries.eps')

    # Find detection within this network response
    print('Finding detections in the cumulatve network response')
    detections = _find_detections(cum_net_resp, peak_nodes, threshold,
                                  thresh_type, stream[0].stats.sampling_rate,
                                  realstations, gap)
    del cum_net_resp
    templates = []
    nodesout = []
    good_detections = []
    if detections:
        print('Converting detections in to templates')
        # Generate a catalog of detections
        detections_cat = Catalog()
        for j, detection in enumerate(detections):
            print('Converting for detection ' + str(j) + ' of ' +
                  str(len(detections)))
            # Create an event for each detection
            event = Event()
            # Set up some header info for the event
            event.event_descriptions.append(EventDescription())
            event.event_descriptions[0].text = 'Brightness detection'
            event.creation_info = CreationInfo(agency_id='EQcorrscan')
            copy_of_stream = deepcopy(stream_copy)
            # Convert detections to obspy.core.event type -
            # name of detection template is the node.
            node = (detection.template_name.split('_')[0],
                    detection.template_name.split('_')[1],
                    detection.template_name.split('_')[2])
            print(node)
            # Look up node in nodes and find the associated lags
            index = nodes.index(node)
            detect_lags = lags[:, index]
            ksta = Comment(text='Number of stations=' + len(detect_lags))
            event.origins.append(Origin())
            event.origins[0].comments.append(ksta)
            event.origins[0].time = copy_of_stream[0].stats.starttime +\
                detect_lags[0] + detection.detect_time
            event.origins[0].latitude = node[0]
            event.origins[0].longitude = node[1]
            event.origins[0].depth = node[2]
            for i, detect_lag in enumerate(detect_lags):
                station = stations[i]
                st = copy_of_stream.select(station=station)
                if len(st) != 0:
                    for tr in st:
                        _waveform_id = WaveformStreamID(station_code=tr.stats.
                                                        station,
                                                        channel_code=tr.stats.
                                                        channel,
                                                        network_code='NA')
                        event.picks.append(Pick(waveform_id=_waveform_id,
                                                time=tr.stats.starttime +
                                                detect_lag +
                                                detection.detect_time +
开发者ID:kemichai,项目名称:EQcorrscan,代码行数:70,代码来源:bright_lights.py

示例3: _read_single_hypocenter

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]

#.........这里部分代码省略.........
     used_station_count, depth_phase_count) = map(int, line[1:11:2])
    stderr, az_gap, sec_az_gap = map(float, line[11:17:2])
    gt_level = line[17]
    min_dist, max_dist, med_dist = map(float, line[19:25:2])

    # goto location quality info line
    line = lines["QML_OriginUncertainty"]

    if "COMMENT" in lines:
        comment = lines["COMMENT"].strip()
        comment = comment.strip('\'"')
        comment = comment.strip()

    hor_unc, min_hor_unc, max_hor_unc, hor_unc_azim = \
        map(float, line.split()[1:9:2])

    # assign origin info
    event = Event()
    o = Origin()
    event.origins = [o]
    event.preferred_origin_id = o.resource_id
    o.origin_uncertainty = OriginUncertainty()
    o.quality = OriginQuality()
    ou = o.origin_uncertainty
    oq = o.quality
    o.comments.append(Comment(text=stats_info_string, force_resource_id=False))
    event.comments.append(Comment(text=comment, force_resource_id=False))

    # SIGNATURE field's first item is LOCSIG, which is supposed to be
    # 'Identification of an individual, institiution or other entity'
    # according to
    # http://alomax.free.fr/nlloc/soft6.00/control.html#_NLLoc_locsig_
    # so use it as author in creation info
    event.creation_info = CreationInfo(creation_time=creation_time,
                                       version=version,
                                       author=signature)
    o.creation_info = CreationInfo(creation_time=creation_time,
                                   version=version,
                                   author=signature)

    # negative values can appear on diagonal of covariance matrix due to a
    # precision problem in NLLoc implementation when location coordinates are
    # large compared to the covariances.
    o.longitude = x
    try:
        o.longitude_errors.uncertainty = kilometer2degrees(sqrt(covariance_xx))
    except ValueError:
        if covariance_xx < 0:
            msg = ("Negative value in XX value of covariance matrix, not "
                   "setting longitude error (epicentral uncertainties will "
                   "still be set in origin uncertainty).")
            warnings.warn(msg)
        else:
            raise
    o.latitude = y
    try:
        o.latitude_errors.uncertainty = kilometer2degrees(sqrt(covariance_yy))
    except ValueError:
        if covariance_yy < 0:
            msg = ("Negative value in YY value of covariance matrix, not "
                   "setting longitude error (epicentral uncertainties will "
                   "still be set in origin uncertainty).")
            warnings.warn(msg)
        else:
            raise
    o.depth = z * 1e3  # meters!
开发者ID:QuLogic,项目名称:obspy,代码行数:70,代码来源:core.py

示例4: _readheader

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
def _readheader(f):
    """
    Internal header reader.
    :type f: file
    :param f: File open in read-mode.

    :returns: :class:`~obspy.core.event.event.Event`
    """
    f.seek(0)
    # Base populate to allow for empty parts of file
    new_event = Event()
    topline = _get_headline(f=f)
    if not topline:
        raise NordicParsingError('No header found, or incorrect '
                                 'formatting: corrupt s-file')
    try:
        sfile_seconds = int(topline[16:18])
        if sfile_seconds == 60:
            sfile_seconds = 0
            add_seconds = 60
        else:
            add_seconds = 0
        new_event.origins.append(Origin())
        new_event.origins[0].time = UTCDateTime(int(topline[1:5]),
                                                int(topline[6:8]),
                                                int(topline[8:10]),
                                                int(topline[11:13]),
                                                int(topline[13:15]),
                                                sfile_seconds,
                                                int(topline[19:20]) *
                                                100000)\
            + add_seconds
    except:
        NordicParsingError("Couldn't read a date from sfile")
    # new_event.loc_mod_ind=topline[20]
    new_event.event_descriptions.append(EventDescription())
    new_event.event_descriptions[0].text = topline[21:23]
    # new_event.ev_id=topline[22]
    try:
        new_event.origins[0].latitude = float(topline[23:30])
        new_event.origins[0].longitude = float(topline[31:38])
        new_event.origins[0].depth = float(topline[39:43]) * 1000
    except ValueError:
        # The origin 'requires' a lat & long
        new_event.origins[0].latitude = None
        new_event.origins[0].longitude = None
        new_event.origins[0].depth = None
    # new_event.depth_ind = topline[44]
    # new_event.loc_ind = topline[45]
    new_event.creation_info = CreationInfo(agency_id=topline[45:48].strip())
    ksta = Comment(text='Number of stations=' + topline[49:51].strip())
    new_event.origins[0].comments.append(ksta)
    if _float_conv(topline[51:55]) is not None:
        new_event.origins[0].time_errors['Time_Residual_RMS'] = \
            _float_conv(topline[51:55])
    # Read in magnitudes if they are there.
    for index in [59, 67, 75]:
        if not topline[index].isspace():
            new_event.magnitudes.append(Magnitude())
            new_event.magnitudes[-1].mag = _float_conv(
                topline[index - 3:index])
            new_event.magnitudes[-1].magnitude_type = \
                _nortoevmag(topline[index])
            new_event.magnitudes[-1].creation_info = \
                CreationInfo(agency_id=topline[index + 1:index + 4].strip())
            new_event.magnitudes[-1].origin_id = new_event.origins[0].\
                resource_id
    # Set the useful things like preferred magnitude and preferred origin
    new_event.preferred_origin_id = new_event.origins[0].resource_id
    try:
        # Select moment first, then local, then
        mag_filter = ['MW', 'Mw', 'ML', 'Ml', 'MB', 'Mb',
                      'MS', 'Ms', 'MC', 'Mc']
        _magnitudes = [(m.magnitude_type, m.resource_id)
                       for m in new_event.magnitudes]
        preferred_magnitude = sorted(_magnitudes,
                                     key=lambda x: mag_filter.index(x[0]))[0]
        new_event.preferred_magnitude_id = preferred_magnitude[1]
    except (ValueError, IndexError):
        # If there is a magnitude not specified in filter
        try:
            new_event.preferred_magnitude_id = new_event.magnitudes[0].\
                resource_id
        except IndexError:
            pass
    return new_event
开发者ID:mbyt,项目名称:obspy,代码行数:88,代码来源:core.py

示例5: read_nlloc_hyp

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]

#.........这里部分代码省略.........
        "matrix as 1D marginal (Lon/Lat errors as great circle degrees) "
        "while OriginUncertainty min/max horizontal errors are calculated "
        "from 2D error ellipsoid and are therefore seemingly higher compared "
        "to 1D errors. Error estimates can be reconstructed from the "
        "following original NonLinLoc error statistics line:\nSTATISTICS " +
        lines["STATISTICS"])

    # goto location quality info line
    line = lines["QML_OriginQuality"].split()

    (assoc_phase_count, used_phase_count, assoc_station_count,
     used_station_count, depth_phase_count) = map(int, line[1:11:2])
    stderr, az_gap, sec_az_gap = map(float, line[11:17:2])
    gt_level = line[17]
    min_dist, max_dist, med_dist = map(float, line[19:25:2])

    # goto location quality info line
    line = lines["QML_OriginUncertainty"]

    hor_unc, min_hor_unc, max_hor_unc, hor_unc_azim = \
        map(float, line.split()[1:9:2])

    # assign origin info
    event = Event()
    cat = Catalog(events=[event])
    o = Origin()
    event.origins = [o]
    o.origin_uncertainty = OriginUncertainty()
    o.quality = OriginQuality()
    ou = o.origin_uncertainty
    oq = o.quality
    o.comments.append(Comment(text=stats_info_string))

    cat.creation_info.creation_time = UTCDateTime()
    cat.creation_info.version = "ObsPy %s" % __version__
    event.creation_info = CreationInfo(creation_time=creation_time,
                                       version=version)
    event.creation_info.version = version
    o.creation_info = CreationInfo(creation_time=creation_time,
                                   version=version)

    # negative values can appear on diagonal of covariance matrix due to a
    # precision problem in NLLoc implementation when location coordinates are
    # large compared to the covariances.
    o.longitude = x
    try:
        o.longitude_errors.uncertainty = kilometer2degrees(sqrt(covariance_XX))
    except ValueError:
        if covariance_XX < 0:
            msg = ("Negative value in XX value of covariance matrix, not "
                   "setting longitude error (epicentral uncertainties will "
                   "still be set in origin uncertainty).")
            warnings.warn(msg)
        else:
            raise
    o.latitude = y
    try:
        o.latitude_errors.uncertainty = kilometer2degrees(sqrt(covariance_YY))
    except ValueError:
        if covariance_YY < 0:
            msg = ("Negative value in YY value of covariance matrix, not "
                   "setting longitude error (epicentral uncertainties will "
                   "still be set in origin uncertainty).")
            warnings.warn(msg)
        else:
            raise
开发者ID:bmorg,项目名称:obspy,代码行数:70,代码来源:core.py

示例6: full_test_event

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
def full_test_event():
    """
    Function to generate a basic, full test event
    """
    test_event = Event()
    test_event.origins.append(Origin(
        time=UTCDateTime("2012-03-26") + 1.2, latitude=45.0, longitude=25.0,
        depth=15000))
    test_event.event_descriptions.append(EventDescription())
    test_event.event_descriptions[0].text = 'LE'
    test_event.creation_info = CreationInfo(agency_id='TES')
    test_event.magnitudes.append(Magnitude(
        mag=0.1, magnitude_type='ML', creation_info=CreationInfo('TES'),
        origin_id=test_event.origins[0].resource_id))
    test_event.magnitudes.append(Magnitude(
        mag=0.5, magnitude_type='Mc', creation_info=CreationInfo('TES'),
        origin_id=test_event.origins[0].resource_id))
    test_event.magnitudes.append(Magnitude(
        mag=1.3, magnitude_type='Ms', creation_info=CreationInfo('TES'),
        origin_id=test_event.origins[0].resource_id))

    # Define the test pick
    _waveform_id_1 = WaveformStreamID(station_code='FOZ', channel_code='SHZ',
                                      network_code='NZ')
    _waveform_id_2 = WaveformStreamID(station_code='WTSZ', channel_code='BH1',
                                      network_code=' ')
    # Pick to associate with amplitude - 0
    test_event.picks = [
        Pick(waveform_id=_waveform_id_1, phase_hint='IAML',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.68,
             evaluation_mode="manual"),
        Pick(waveform_id=_waveform_id_1, onset='impulsive', phase_hint='PN',
             polarity='positive', time=UTCDateTime("2012-03-26") + 1.68,
             evaluation_mode="manual"),
        Pick(waveform_id=_waveform_id_1, phase_hint='IAML',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.68,
             evaluation_mode="manual"),
        Pick(waveform_id=_waveform_id_2, onset='impulsive', phase_hint='SG',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.72,
             evaluation_mode="manual"),
        Pick(waveform_id=_waveform_id_2, onset='impulsive', phase_hint='PN',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.62,
             evaluation_mode="automatic")]
    # Test a generic local magnitude amplitude pick
    test_event.amplitudes = [
        Amplitude(generic_amplitude=2.0, period=0.4,
                  pick_id=test_event.picks[0].resource_id,
                  waveform_id=test_event.picks[0].waveform_id, unit='m',
                  magnitude_hint='ML', category='point', type='AML'),
        Amplitude(generic_amplitude=10,
                  pick_id=test_event.picks[1].resource_id,
                  waveform_id=test_event.picks[1].waveform_id, type='END',
                  category='duration', unit='s', magnitude_hint='Mc',
                  snr=2.3),
        Amplitude(generic_amplitude=5.0, period=0.6,
                  pick_id=test_event.picks[2].resource_id,
                  waveform_id=test_event.picks[0].waveform_id, unit='m',
                  category='point', type='AML')]
    test_event.origins[0].arrivals = [
        Arrival(time_weight=0, phase=test_event.picks[1].phase_hint,
                pick_id=test_event.picks[1].resource_id),
        Arrival(time_weight=2, phase=test_event.picks[3].phase_hint,
                pick_id=test_event.picks[3].resource_id,
                backazimuth_residual=5, time_residual=0.2, distance=15,
                azimuth=25),
        Arrival(time_weight=2, phase=test_event.picks[4].phase_hint,
                pick_id=test_event.picks[4].resource_id,
                backazimuth_residual=5, time_residual=0.2, distance=15,
                azimuth=25)]
    # Add in error info (line E)
    test_event.origins[0].quality = OriginQuality(
        standard_error=0.01, azimuthal_gap=36)
    # Origin uncertainty in Seisan is output as long-lat-depth, quakeML has
    # semi-major and semi-minor
    test_event.origins[0].origin_uncertainty = OriginUncertainty(
        confidence_ellipsoid=ConfidenceEllipsoid(
            semi_major_axis_length=3000, semi_minor_axis_length=1000,
            semi_intermediate_axis_length=2000, major_axis_plunge=20,
            major_axis_azimuth=100, major_axis_rotation=4))
    test_event.origins[0].time_errors = QuantityError(uncertainty=0.5)
    # Add in fault-plane solution info (line F) - Note have to check program
    # used to determine which fields are filled....
    test_event.focal_mechanisms.append(FocalMechanism(
        nodal_planes=NodalPlanes(nodal_plane_1=NodalPlane(
            strike=180, dip=20, rake=30, strike_errors=QuantityError(10),
            dip_errors=QuantityError(10), rake_errors=QuantityError(20))),
        method_id=ResourceIdentifier("smi:nc.anss.org/focalMechanism/FPFIT"),
        creation_info=CreationInfo(agency_id="NC"), misfit=0.5,
        station_distribution_ratio=0.8))
    # Need to test high-precision origin and that it is preferred origin.
    # Moment tensor includes another origin
    test_event.origins.append(Origin(
        time=UTCDateTime("2012-03-26") + 1.2, latitude=45.1, longitude=25.2,
        depth=14500))
    test_event.magnitudes.append(Magnitude(
        mag=0.1, magnitude_type='MW', creation_info=CreationInfo('TES'),
        origin_id=test_event.origins[-1].resource_id))
    # Moment tensors go with focal-mechanisms
    test_event.focal_mechanisms.append(FocalMechanism(
        moment_tensor=MomentTensor(
#.........这里部分代码省略.........
开发者ID:QuLogic,项目名称:obspy,代码行数:103,代码来源:test_nordic.py

示例7: full_test_event

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
def full_test_event():
    """
    Function to generate a basic, full test event
    """
    test_event = Event()
    test_event.origins.append(Origin())
    test_event.origins[0].time = UTCDateTime("2012-03-26") + 1.2
    test_event.event_descriptions.append(EventDescription())
    test_event.event_descriptions[0].text = 'LE'
    test_event.origins[0].latitude = 45.0
    test_event.origins[0].longitude = 25.0
    test_event.origins[0].depth = 15000
    test_event.creation_info = CreationInfo(agency_id='TES')
    test_event.origins[0].time_errors['Time_Residual_RMS'] = 0.01
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[0].mag = 0.1
    test_event.magnitudes[0].magnitude_type = 'ML'
    test_event.magnitudes[0].creation_info = CreationInfo('TES')
    test_event.magnitudes[0].origin_id = test_event.origins[0].resource_id
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[1].mag = 0.5
    test_event.magnitudes[1].magnitude_type = 'Mc'
    test_event.magnitudes[1].creation_info = CreationInfo('TES')
    test_event.magnitudes[1].origin_id = test_event.origins[0].resource_id
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[2].mag = 1.3
    test_event.magnitudes[2].magnitude_type = 'Ms'
    test_event.magnitudes[2].creation_info = CreationInfo('TES')
    test_event.magnitudes[2].origin_id = test_event.origins[0].resource_id

    # Define the test pick
    _waveform_id_1 = WaveformStreamID(station_code='FOZ', channel_code='SHZ',
                                      network_code='NZ')
    _waveform_id_2 = WaveformStreamID(station_code='WTSZ', channel_code='BH1',
                                      network_code=' ')
    # Pick to associate with amplitude
    test_event.picks.append(
        Pick(waveform_id=_waveform_id_1, phase_hint='IAML',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.68,
             evaluation_mode="manual"))
    # Need a second pick for coda
    test_event.picks.append(
        Pick(waveform_id=_waveform_id_1, onset='impulsive', phase_hint='PN',
             polarity='positive', time=UTCDateTime("2012-03-26") + 1.68,
             evaluation_mode="manual"))
    # Unassociated pick
    test_event.picks.append(
        Pick(waveform_id=_waveform_id_2, onset='impulsive', phase_hint='SG',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.72,
             evaluation_mode="manual"))
    # Unassociated pick
    test_event.picks.append(
        Pick(waveform_id=_waveform_id_2, onset='impulsive', phase_hint='PN',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.62,
             evaluation_mode="automatic"))
    # Test a generic local magnitude amplitude pick
    test_event.amplitudes.append(
        Amplitude(generic_amplitude=2.0, period=0.4,
                  pick_id=test_event.picks[0].resource_id,
                  waveform_id=test_event.picks[0].waveform_id, unit='m',
                  magnitude_hint='ML', category='point', type='AML'))
    # Test a coda magnitude pick
    test_event.amplitudes.append(
        Amplitude(generic_amplitude=10,
                  pick_id=test_event.picks[1].resource_id,
                  waveform_id=test_event.picks[1].waveform_id, type='END',
                  category='duration', unit='s', magnitude_hint='Mc',
                  snr=2.3))
    test_event.origins[0].arrivals.append(
        Arrival(time_weight=0, phase=test_event.picks[1].phase_hint,
                pick_id=test_event.picks[1].resource_id))
    test_event.origins[0].arrivals.append(
        Arrival(time_weight=2, phase=test_event.picks[2].phase_hint,
                pick_id=test_event.picks[2].resource_id,
                backazimuth_residual=5, time_residual=0.2, distance=15,
                azimuth=25))
    test_event.origins[0].arrivals.append(
        Arrival(time_weight=2, phase=test_event.picks[3].phase_hint,
                pick_id=test_event.picks[3].resource_id,
                backazimuth_residual=5, time_residual=0.2, distance=15,
                azimuth=25))
    return test_event
开发者ID:mbyt,项目名称:obspy,代码行数:84,代码来源:test_nordic.py

示例8: readheader

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
def readheader(sfile):
    """
    Read header information from a seisan nordic format S-file.
    Returns an obspy.core.event.Catalog type: note this changed for version \
    0.1.0 from the inbuilt class types.

    :type sfile: str
    :param sfile: Path to the s-file

    :returns: :class: obspy.core.event.Event

    >>> event = readheader('eqcorrscan/tests/test_data/REA/TEST_/' +
    ...                    '01-0411-15L.S201309')
    >>> print(event.origins[0].time)
    2013-09-01T04:11:15.700000Z
    """
    import warnings
    from obspy.core.event import Event, Origin, Magnitude, Comment
    from obspy.core.event import EventDescription, CreationInfo
    f = open(sfile, 'r')
    # Base populate to allow for empty parts of file
    new_event = Event()
    topline = f.readline()
    if not len(topline.rstrip()) == 80:
        raise IOError('s-file has a corrupt header, not 80 char long')
    f.seek(0)
    for line in f:
        if line[79] in [' ', '1']:
            topline = line
            break
        if line[79] == '7':
            raise IOError('No header found, corrupt s-file?')
    try:
        sfile_seconds = int(topline[16:18])
        if sfile_seconds == 60:
            sfile_seconds = 0
            add_seconds = 60
        else:
            add_seconds = 0
        new_event.origins.append(Origin())
        new_event.origins[0].time = UTCDateTime(int(topline[1:5]),
                                                int(topline[6:8]),
                                                int(topline[8:10]),
                                                int(topline[11:13]),
                                                int(topline[13:15]),
                                                sfile_seconds,
                                                int(topline[19:20]) *
                                                100000)\
            + add_seconds
    except:
        warnings.warn("Couldn't read a date from sfile: " + sfile)
        new_event.origins.append(Origin(time=UTCDateTime(0)))
    # new_event.loc_mod_ind=topline[20]
    new_event.event_descriptions.append(EventDescription())
    new_event.event_descriptions[0].text = topline[21:23]
    # new_event.ev_id=topline[22]
    if not _float_conv(topline[23:30]) == 999:
        new_event.origins[0].latitude = _float_conv(topline[23:30])
        new_event.origins[0].longitude = _float_conv(topline[31:38])
        new_event.origins[0].depth = _float_conv(topline[39:43]) * 1000
    else:
        # The origin 'requires' a lat & long
        new_event.origins[0].latitude = float('NaN')
        new_event.origins[0].longitude = float('NaN')
        new_event.origins[0].depth = float('NaN')
    # new_event.depth_ind = topline[44]
    # new_event.loc_ind = topline[45]
    new_event.creation_info = CreationInfo(agency_id=topline[45:48].
                                           strip())
    ksta = Comment(text='Number of stations=' +
                   topline[49:51].strip())
    new_event.origins[0].comments.append(ksta)
    # new_event.origins[0].nsta??? = _int_conv(topline[49:51])
    if not _float_conv(topline[51:55]) == 999:
        new_event.origins[0].time_errors['Time_Residual_RMS'] = \
            _float_conv(topline[51:55])
    # Read in magnitudes if they are there.
    if len(topline[59].strip()) > 0:
        new_event.magnitudes.append(Magnitude())
        new_event.magnitudes[0].mag = _float_conv(topline[56:59])
        new_event.magnitudes[0].magnitude_type = topline[59]
        new_event.magnitudes[0].creation_info = \
            CreationInfo(agency_id=topline[60:63].strip())
        new_event.magnitudes[0].origin_id = new_event.origins[0].\
            resource_id
    if len(topline[67].strip()) > 0:
        new_event.magnitudes.append(Magnitude())
        new_event.magnitudes[1].mag = _float_conv(topline[64:67])
        new_event.magnitudes[1].magnitude_type = topline[67]
        new_event.magnitudes[1].creation_info = \
            CreationInfo(agency_id=topline[68:71].strip())
        new_event.magnitudes[1].origin_id = new_event.origins[0].\
            resource_id
    if len(topline[75].strip()) > 0:
        new_event.magnitudes.append(Magnitude())
        new_event.magnitudes[2].mag = _float_conv(topline[72:75])
        new_event.magnitudes[2].magnitude_type = topline[75]
        new_event.magnitudes[2].creation_info = \
            CreationInfo(agency_id=topline[76:79].strip())
        new_event.magnitudes[2].origin_id = new_event.origins[0].\
#.........这里部分代码省略.........
开发者ID:xiansch,项目名称:EQcorrscan,代码行数:103,代码来源:sfile_util.py

示例9: full_test_event

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
def full_test_event():
    """
    Function to generate a basic, full test event
    """
    test_event = Event()
    test_event.origins.append(Origin())
    test_event.origins[0].time = UTCDateTime("2012-03-26") + 1.2
    test_event.event_descriptions.append(EventDescription())
    test_event.event_descriptions[0].text = 'LE'
    test_event.origins[0].latitude = 45.0
    test_event.origins[0].longitude = 25.0
    test_event.origins[0].depth = 15000
    test_event.creation_info = CreationInfo(agency_id='TES')
    test_event.origins[0].quality = OriginQuality(standard_error=0.01)
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[0].mag = 0.1
    test_event.magnitudes[0].magnitude_type = 'ML'
    test_event.magnitudes[0].creation_info = CreationInfo('TES')
    test_event.magnitudes[0].origin_id = test_event.origins[0].resource_id
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[1].mag = 0.5
    test_event.magnitudes[1].magnitude_type = 'Mc'
    test_event.magnitudes[1].creation_info = CreationInfo('TES')
    test_event.magnitudes[1].origin_id = test_event.origins[0].resource_id
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[2].mag = 1.3
    test_event.magnitudes[2].magnitude_type = 'Ms'
    test_event.magnitudes[2].creation_info = CreationInfo('TES')
    test_event.magnitudes[2].origin_id = test_event.origins[0].resource_id

    # Define the test pick
    _waveform_id_1 = WaveformStreamID(station_code='FOZ', channel_code='SHZ',
                                      network_code='NZ')
    _waveform_id_2 = WaveformStreamID(station_code='WTSZ', channel_code='BH1',
                                      network_code=' ')
    # Pick to associate with amplitude
    test_event.picks.append(
        Pick(waveform_id=_waveform_id_1, phase_hint='IAML',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.68,
             evaluation_mode="manual"))
    # Need a second pick for coda
    test_event.picks.append(
        Pick(waveform_id=_waveform_id_1, onset='impulsive', phase_hint='PN',
             polarity='positive', time=UTCDateTime("2012-03-26") + 1.68,
             evaluation_mode="manual"))
    # Unassociated pick
    test_event.picks.append(
        Pick(waveform_id=_waveform_id_2, onset='impulsive', phase_hint='SG',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.72,
             evaluation_mode="manual"))
    # Unassociated pick
    test_event.picks.append(
        Pick(waveform_id=_waveform_id_2, onset='impulsive', phase_hint='PN',
             polarity='undecidable', time=UTCDateTime("2012-03-26") + 1.62,
             evaluation_mode="automatic"))
    # Test a generic local magnitude amplitude pick
    test_event.amplitudes.append(
        Amplitude(generic_amplitude=2.0, period=0.4,
                  pick_id=test_event.picks[0].resource_id,
                  waveform_id=test_event.picks[0].waveform_id, unit='m',
                  magnitude_hint='ML', category='point', type='AML'))
    # Test a coda magnitude pick
    test_event.amplitudes.append(
        Amplitude(generic_amplitude=10,
                  pick_id=test_event.picks[1].resource_id,
                  waveform_id=test_event.picks[1].waveform_id, type='END',
                  category='duration', unit='s', magnitude_hint='Mc',
                  snr=2.3))
    test_event.origins[0].arrivals.append(
        Arrival(time_weight=0, phase=test_event.picks[1].phase_hint,
                pick_id=test_event.picks[1].resource_id))
    test_event.origins[0].arrivals.append(
        Arrival(time_weight=2, phase=test_event.picks[2].phase_hint,
                pick_id=test_event.picks[2].resource_id,
                backazimuth_residual=5, time_residual=0.2, distance=15,
                azimuth=25))
    test_event.origins[0].arrivals.append(
        Arrival(time_weight=2, phase=test_event.picks[3].phase_hint,
                pick_id=test_event.picks[3].resource_id,
                backazimuth_residual=5, time_residual=0.2, distance=15,
                azimuth=25))
    return test_event

    def test_nortoevmag(self):
        self.assertEqual(_nortoevmag('b'), 'mB')
        # raises "UserWarning: bob is not convertible"
        with warnings.catch_warnings(record=True) as w:
            warnings.simplefilter('always', UserWarning)
            self.assertEqual(_nortoevmag('bob'), '')
        self.assertEquals(len(w), 1)
        self.assertEquals('bob is not convertible', w[0].messages)

    def test_evmagtonor(self):
        self.assertEqual(_evmagtonor('mB'), 'B')
        self.assertEqual(_evmagtonor('M'), 'W')
        # raises "UserWarning: bob is not convertible"
        with warnings.catch_warnings(record=True) as w:
            warnings.simplefilter('always', UserWarning)
            self.assertEqual(_evmagtonor('bob'), '')
        self.assertEquals(len(w), 1)
#.........这里部分代码省略.........
开发者ID:junlysky,项目名称:obspy,代码行数:103,代码来源:test_nordic.py

示例10: build

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
    def build(self):
        """
        Build an obspy moment tensor focal mech event

        This makes the tensor output into an Event containing:
        1) a FocalMechanism with a MomentTensor, NodalPlanes, and PrincipalAxes
        2) a Magnitude of the Mw from the Tensor

        Which is what we want for outputting QuakeML using
        the (slightly modified) obspy code.

        Input
        -----
        filehandle => open file OR str from filehandle.read()

        Output
        ------
        event => instance of Event() class as described above
        """
        p = self.parser
        event         = Event(event_type='earthquake')
        origin        = Origin()
        focal_mech    = FocalMechanism()
        nodal_planes  = NodalPlanes()
        moment_tensor = MomentTensor()
        principal_ax  = PrincipalAxes()
        magnitude     = Magnitude()
        data_used     = DataUsed()
        creation_info = CreationInfo(agency_id='NN')
        ev_mode = 'automatic'
        ev_stat = 'preliminary'
        evid = None
        orid = None
        # Parse the entire file line by line.
        for n,l in enumerate(p.line):
            if 'REVIEWED BY NSL STAFF' in l:
                ev_mode = 'manual'
                ev_stat = 'reviewed'
            if 'Event ID' in l:
                evid = p._id(n)
            if 'Origin ID' in l:
                orid = p._id(n)
            if 'Ichinose' in l:
                moment_tensor.category = 'regional'
            if re.match(r'^\d{4}\/\d{2}\/\d{2}', l):
                ev = p._event_info(n)
            if 'Depth' in l:
                derived_depth = p._depth(n)
            if 'Mw' in l:
                magnitude.mag = p._mw(n) 
                magnitude.magnitude_type = 'Mw'
            if 'Mo' in l and 'dyne' in l:
                moment_tensor.scalar_moment = p._mo(n)
            if 'Percent Double Couple' in l:
                moment_tensor.double_couple = p._percent(n)
            if 'Percent CLVD' in l:
                moment_tensor.clvd = p._percent(n)
            if 'Epsilon' in l:
                moment_tensor.variance = p._epsilon(n)
            if 'Percent Variance Reduction' in l:
                moment_tensor.variance_reduction = p._percent(n)
            if 'Major Double Couple' in l and 'strike' in p.line[n+1]:
                np = p._double_couple(n)
                nodal_planes.nodal_plane_1 = NodalPlane(*np[0])
                nodal_planes.nodal_plane_2 = NodalPlane(*np[1])
                nodal_planes.preferred_plane = 1
            if 'Spherical Coordinates' in l:
                mt = p._mt_sphere(n)
                moment_tensor.tensor = Tensor(
                    m_rr = mt['Mrr'],
                    m_tt = mt['Mtt'],
                    m_pp = mt['Mff'],
                    m_rt = mt['Mrt'],
                    m_rp = mt['Mrf'],
                    m_tp = mt['Mtf'],
                    )
            if 'Eigenvalues and eigenvectors of the Major Double Couple' in l:
                ax = p._vectors(n)
                principal_ax.t_axis = Axis(ax['T']['trend'], ax['T']['plunge'], ax['T']['ev'])
                principal_ax.p_axis = Axis(ax['P']['trend'], ax['P']['plunge'], ax['P']['ev'])
                principal_ax.n_axis = Axis(ax['N']['trend'], ax['N']['plunge'], ax['N']['ev'])
            if 'Number of Stations' in l:
                data_used.station_count = p._number_of_stations(n)
            if 'Maximum' in l and 'Gap' in l:
                focal_mech.azimuthal_gap = p._gap(n)
            if re.match(r'^Date', l):
                creation_info.creation_time = p._creation_time(n)
        # Creation Time
        creation_info.version = orid
        # Fill in magnitude values
        magnitude.evaluation_mode = ev_mode
        magnitude.evaluation_status = ev_stat
        magnitude.creation_info = creation_info.copy()
        magnitude.resource_id = self._rid(magnitude)
        # Stub origin
        origin.time = ev.get('time')
        origin.latitude = ev.get('lat')
        origin.longitude = ev.get('lon')
        origin.depth = derived_depth * 1000.
        origin.depth_type = "from moment tensor inversion"
#.........这里部分代码省略.........
开发者ID:NVSeismoLab,项目名称:commons,代码行数:103,代码来源:ichinose.py

示例11: basic_test_event

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
def basic_test_event():
    """
    Function to generate a basic, full test event
    """
    from obspy.core.event import Pick, WaveformStreamID, Arrival, Amplitude
    from obspy.core.event import Event, Origin, Magnitude
    from obspy.core.event import EventDescription, CreationInfo
    from obspy import UTCDateTime

    test_event = Event()
    test_event.origins.append(Origin())
    test_event.origins[0].time = UTCDateTime("2012-03-26") + 1
    test_event.event_descriptions.append(EventDescription())
    test_event.event_descriptions[0].text = 'LE'
    test_event.origins[0].latitude = 45.0
    test_event.origins[0].longitude = 25.0
    test_event.origins[0].depth = 15000
    test_event.creation_info = CreationInfo(agency_id='TES')
    test_event.origins[0].time_errors['Time_Residual_RMS'] = 0.01
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[0].mag = 0.1
    test_event.magnitudes[0].magnitude_type = 'ML'
    test_event.magnitudes[0].creation_info = CreationInfo('TES')
    test_event.magnitudes[0].origin_id = test_event.origins[0].resource_id
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[1].mag = 0.5
    test_event.magnitudes[1].magnitude_type = 'Mc'
    test_event.magnitudes[1].creation_info = CreationInfo('TES')
    test_event.magnitudes[1].origin_id = test_event.origins[0].resource_id
    test_event.magnitudes.append(Magnitude())
    test_event.magnitudes[2].mag = 1.3
    test_event.magnitudes[2].magnitude_type = 'Ms'
    test_event.magnitudes[2].creation_info = CreationInfo('TES')
    test_event.magnitudes[2].origin_id = test_event.origins[0].resource_id

    # Define the test pick
    _waveform_id = WaveformStreamID(station_code='FOZ', channel_code='SHZ',
                                    network_code='NZ')
    test_event.picks.append(Pick(waveform_id=_waveform_id,
                                 onset='impulsive', phase_hint='PN',
                                 polarity='positive',
                                 time=UTCDateTime("2012-03-26") + 1.68,
                                 horizontal_slowness=12, backazimuth=20))
    test_event.amplitudes.append(Amplitude(generic_amplitude=2.0,
                                           period=0.4,
                                           pick_id=test_event.picks[0].
                                           resource_id,
                                           waveform_id=test_event.picks[0].
                                           waveform_id,
                                           unit='m'))
    test_event.origins[0].arrivals.append(Arrival(time_weight=2,
                                                  phase=test_event.
                                                  picks[0].
                                                  phase_hint,
                                                  pick_id=test_event.
                                                  picks[0].
                                                  resource_id,
                                                  backazimuth_residual=5,
                                                  time_residual=0.2,
                                                  distance=15,
                                                  azimuth=25))
    return test_event
开发者ID:cjhopp,项目名称:EQcorrscan,代码行数:64,代码来源:sfile_util_test.py

示例12: get_results

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
    def get_results(self):
        cids = []
        clusters = []
        results_file = "{}/{}".format(self.hypoDD_control.control_directory,
                              self.hypoDD_control.relocated_hypocenters_output
                              )
        residuals_file = "{}/{}".format(self.hypoDD_control.control_directory,
                                        self.hypoDD_control.data_residual_output
                                        )
        with open(results_file, "r") as f:
            for line in f:
                num = line.split()
                evid = num[0]
                lat = float(num[1])
                lon = float(num[2])
                dep = 1000 * float(num[3])  # km to m
                errx = num[7]
                erry = num[8]
                errz = num[9]
                yr = int(num[10])
                mo = int(num[11])
                dy = int(num[12])
                hr = int(num[13])
                mi = int(num[14])
                sc = float(num[15])
                mag = num[16]
                nccp = num[17]
                nccs = num[18]
                nctp = num[19]
                ncts = num[20]
                rcc = num[21]
                rct = num[22]
                cid = num[23]
                if cid not in cids:
                    cids.append(cid)
                    clusters.append(Cluster())
                    clusters[-1].hypoDD_id=cid
                    clusters[-1].successful_relocation=True
                    clusters[-1].catalog=Catalog()
                    clusters[-1].event_ids=[]
                origin=Origin()
                isec = int ( math.floor( sc ))
                micsec = int ( ( sc - isec) * 1000000 )
                origin.time = UTCDateTime(yr, mo, dy, hr, mi, isec, micsec)
                origin.longitude = lon
                origin.latitude = lat
                origin.depth = dep
                origin.method_id = "hypoDD"
                # TODO (@ogalanis): Add time/location errors (when
                # appropriate. Add quality and origin_uncertainty. Add arrivals.
                event=Event()
                event.creation_info=CreationInfo()
                event.creation_info.author = __package__
                event.creation_info.version = info.__version__
                event.origins=[origin]
                event.magnitude=Magnitude()
                event.magnitude.mag=mag
                idx=cids.index(cid)
                clusters[idx].catalog.events.append(event)
                clusters[idx].event_ids.append(evid)

        if self.hypoDD_control.cid != 0 :
            my_list = []
            clusters[0].connectedness = Connectedness()
            with open(residuals_file, "r") as f:
                for line in f:
                    num = line.split()
                    evid_1 = num[2]
                    evid_2 = num[3]
                    obs_type = num[4]
                    if obs_type == "1":
                        my_list = clusters[0].connectedness.cross_corr_P
                    elif obs_type == "2":
                        my_list = clusters[0].connectedness.cross_corr_S
                    elif obs_type == "3":
                        my_list = clusters[0].connectedness.catalog_P
                    elif obs_type == "4":
                        my_list = clusters[0].connectedness.catalog_S
                    else:
                        continue
                    in_list = [x for x in my_list if (( x[0] == evid_1 and
                                                        x[1] == evid_2
                                                        ) or
                                                      ( x[0] == evid_2 and
                                                        x[1] == evid_1
                                                        ))]
                    if in_list:
                        for x in my_list:
                            if (( x[0] == evid_1 and
                                  x[1] == evid_2
                                  ) or
                                ( x[0] == evid_2 and
                                  x[1] == evid_1
                                  )):
                                x[2] += 1
                    else:
                        my_list.append([evid_1,evid_2,1])

        return clusters
开发者ID:ogalanis,项目名称:hypoDDutils,代码行数:101,代码来源:hypoDDobject.py

示例13: cross_net

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
def cross_net(stream, env=False, debug=0, master=False):
    """
    Generate picks using a simple envelope cross-correlation.
    Picks are made for each channel based on optimal moveout \
    defined by maximum cross-correlation with master trace.  Master trace \
    will be the first trace in the stream.

    :type stream: :class: obspy.Stream
    :param stream: Stream to pick
    :type env: bool
    :param env: To compute cross-correlations on the envelope or not.
    :type debug: int
    :param debug: Debug level from 0-5
    :type master: obspy.Trace
    :param master: Trace to use as master, if False, will use the first trace \
            in stream.

    :returns: obspy.core.event.Event

    .. rubric:: Example

    >>> from obspy import read
    >>> from eqcorrscan.utils.picker import cross_net
    >>> st = read()
    >>> event = cross_net(st, env=True)
    >>> event.creation_info.author
    'EQcorrscan'
    """
    from obspy.signal.cross_correlation import xcorr
    from obspy.signal.filter import envelope
    from obspy import UTCDateTime
    from obspy.core.event import Event, Pick, WaveformStreamID
    from obspy.core.event import CreationInfo, Comment, Origin
    import matplotlib.pyplot as plt
    import numpy as np

    event = Event()
    event.origins.append(Origin())
    event.creation_info = CreationInfo(author='EQcorrscan',
                                       creation_time=UTCDateTime())
    event.comments.append(Comment(text='cross_net'))
    samp_rate = stream[0].stats.sampling_rate
    if not env:
        if debug > 2:
            print('Using the raw data')
        st = stream.copy()
        st.resample(samp_rate)
    else:
        st = stream.copy()
        if debug > 2:
            print('Computing envelope')
        for tr in st:
            tr.resample(samp_rate)
            tr.data = envelope(tr.data)
    if debug > 2:
        st.plot(equal_scale=False, size=(800, 600))
    if not master:
        master = st[0]
    else:
        master = master
    master.data = np.nan_to_num(master.data)
    for i, tr in enumerate(st):
        tr.data = np.nan_to_num(tr.data)
        if debug > 2:
            msg = ' '.join(['Comparing', tr.stats.station, tr.stats.channel,
                            'with the master'])
            print(msg)
        shift_len = int(0.3 * len(tr))
        if debug > 2:
            print('Shift length is set to ' + str(shift_len) + ' samples')
        if debug > 3:
            index, cc, cc_vec = xcorr(master, tr, shift_len, full_xcorr=True)
            cc_vec = np.nan_to_num(cc_vec)
            if debug > 4:
                print(cc_vec)
            fig = plt.figure()
            ax1 = fig.add_subplot(211)
            x = np.linspace(0, len(master) / samp_rate,
                            len(master))
            ax1.plot(x, master.data / float(master.data.max()), 'k',
                     label='Master')
            ax1.plot(x + (index / samp_rate), tr.data / float(tr.data.max()),
                     'r', label='Slave shifted')
            ax1.legend(loc="lower right", prop={'size': "small"})
            ax1.set_xlabel("time [s]")
            ax1.set_ylabel("norm. amplitude")
            ax2 = fig.add_subplot(212)
            print(len(cc_vec))
            x = np.linspace(0, len(cc_vec) / samp_rate, len(cc_vec))
            ax2.plot(x, cc_vec, label='xcorr')
            # ax2.set_ylim(-1, 1)
            # ax2.set_xlim(0, len(master))
            plt.show()
        index, cc = xcorr(master, tr, shift_len)
        wav_id = WaveformStreamID(station_code=tr.stats.station,
                                  channel_code=tr.stats.channel,
                                  network_code=tr.stats.network)
        event.picks.append(Pick(time=tr.stats.starttime + (index / tr.stats.sampling_rate),
                                waveform_id=wav_id,
                                phase_hint='S',
#.........这里部分代码省略.........
开发者ID:xiansch,项目名称:EQcorrscan,代码行数:103,代码来源:picker.py

示例14: stalta_pick

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]
def stalta_pick(stream, stalen, ltalen, trig_on, trig_off, freqmin=False,
                freqmax=False, debug=0, show=False):
    """
    Basic sta/lta picker, suggest using alternative in obspy.
    Simple sta-lta (short-term average/long-term average) picker, using \
    obspy's stalta routine to generate the characteristic function.

    Currently very basic quick wrapper, there are many other (better) options \
    in obspy, found \
    `here <http://docs.obspy.org/packages/autogen/obspy.signal.trigger.html>`_.

    :type stream: obspy.Stream
    :param stream: The stream to pick on, can be any number of channels.
    :type stalen: float
    :param stalen: Length of the short-term average window in seconds.
    :type ltalen: float
    :param ltalen: Length of the long-term average window in seconds.
    :type trig_on: float
    :param trig_on: sta/lta ratio to trigger a detection/pick
    :type trig_off: float
    :param trig_off: sta/lta ratio to turn the trigger off - no further picks\
        will be made between exceeding trig_on until trig_off is reached.
    :type freqmin: float
    :param freqmin: Low-cut frequency in Hz for bandpass filter
    :type freqmax: float
    :param freqmax: High-cut frequency in Hz for bandpass filter
    :type debug: int
    :param debug: Debug output level from 0-5.
    :type show: bool
    :param show: Show picks on waveform.

    :returns: obspy.core.event.Event

    .. rubric:: Example

    >>> from obspy import read
    >>> from eqcorrscan.utils.picker import stalta_pick
    >>> st = read()
    >>> event = stalta_pick(st, stalen=0.2, ltalen=4, trig_on=10,
    ...             trig_off=1, freqmin=3.0, freqmax=20.0)
    >>> event.creation_info.author
    'EQcorrscan'
    """
    from obspy.signal.trigger import classic_sta_lta, trigger_onset
    from obspy.signal.trigger import plot_trigger
    from obspy import UTCDateTime
    from obspy.core.event import Event, Pick, WaveformStreamID
    from obspy.core.event import CreationInfo, Comment, Origin
    import eqcorrscan.utils.plotting as plotting

    event = Event()
    event.origins.append(Origin())
    event.creation_info = CreationInfo(author='EQcorrscan',
                                       creation_time=UTCDateTime())
    event.comments.append(Comment(text='stalta'))
    picks = []
    for tr in stream:
        # We are going to assume, for now, that if the pick is made on the
        # horizontal channel then it is an S, otherwise we will assume it is
        # a P-phase: obviously a bad assumption...
        if tr.stats.channel[-1] == 'Z':
            phase = 'P'
        else:
            phase = 'S'
        if freqmin and freqmax:
            tr.detrend('simple')
            tr.filter('bandpass', freqmin=freqmin, freqmax=freqmax,
                      corners=3, zerophase=True)
        df = tr.stats.sampling_rate
        cft = classic_sta_lta(tr.data, int(stalen * df), int(ltalen * df))
        if debug > 3:
            plot_trigger(tr, cft, trig_on, trig_off)
        triggers = trigger_onset(cft, trig_on, trig_off)
        for trigger in triggers:
            on = tr.stats.starttime + (trigger[0] / df)
            # off = tr.stats.starttime + (trigger[1] / df)
            wav_id = WaveformStreamID(station_code=tr.stats.station,
                                      channel_code=tr.stats.channel,
                                      network_code=tr.stats.network)
            pick = Pick(waveform_id=wav_id, phase_hint=phase, time=on)
            if debug > 2:
                print('Pick made:')
                print(pick)
            picks.append(pick)
    # QC picks
    del pick
    pick_stations = list(set([pick.waveform_id.station_code for pick in picks]))
    for pick_station in pick_stations:
        station_picks = [pick for pick in picks if
                         pick.waveform_id.station_code == pick_station]
        # If P-pick is after S-picks, remove it.
        p_time = [pick.time for pick in station_picks if pick.phase_hint == 'P']
        s_time = [pick.time for pick in station_picks if pick.phase_hint == 'S']
        if p_time > s_time:
            p_pick = [pick for pick in station_picks if pick.phase_hint == 'P']
            for pick in p_pick:
                print('P pick after S pick, removing P pick')
                picks.remove(pick)
    if show:
        plotting.pretty_template_plot(stream, picks=picks, title='Autopicks',
#.........这里部分代码省略.........
开发者ID:xiansch,项目名称:EQcorrscan,代码行数:103,代码来源:picker.py

示例15: match_filter

# 需要导入模块: from obspy.core.event import Event [as 别名]
# 或者: from obspy.core.event.Event import creation_info [as 别名]

#.........这里部分代码省略.........
            warnings.warn('Mean is not zero!  Check this!')
        # Set up a trace object for the cccsum as this is easier to plot and
        # maintains timing
        if plotvar:
            stream_plot = copy.deepcopy(stream[0])
            # Downsample for plotting
            stream_plot.decimate(int(stream[0].stats.sampling_rate / 10))
            cccsum_plot = Trace(cccsum)
            cccsum_plot.stats.sampling_rate = stream[0].stats.sampling_rate
            # Resample here to maintain shape better
            cccsum_hist = cccsum_plot.copy()
            cccsum_hist = cccsum_hist.decimate(int(stream[0].stats.
                                                   sampling_rate / 10)).data
            cccsum_plot = plotting.chunk_data(cccsum_plot, 10,
                                              'Maxabs').data
            # Enforce same length
            stream_plot.data = stream_plot.data[0:len(cccsum_plot)]
            cccsum_plot = cccsum_plot[0:len(stream_plot.data)]
            cccsum_hist = cccsum_hist[0:len(stream_plot.data)]
            plotting.triple_plot(cccsum_plot, cccsum_hist,
                                 stream_plot, rawthresh, True,
                                 plotdir + '/cccsum_plot_' +
                                 template_names[i] + '_' +
                                 stream[0].stats.starttime.
                                 datetime.strftime('%Y-%m-%d') +
                                 '.' + plot_format)
            if debug >= 4:
                print(' '.join(['Saved the cccsum to:', template_names[i],
                                stream[0].stats.starttime.datetime.
                                strftime('%Y%j')]))
                np.save(template_names[i] +
                        stream[0].stats.starttime.datetime.strftime('%Y%j'),
                        cccsum)
        tic = time.clock()
        if debug >= 4:
            np.save('cccsum_' + str(i) + '.npy', cccsum)
        if debug >= 3 and max(cccsum) > rawthresh:
            peaks = findpeaks.find_peaks2_short(cccsum, rawthresh,
                                                trig_int * stream[0].stats.
                                                sampling_rate, debug,
                                                stream[0].stats.starttime,
                                                stream[0].stats.sampling_rate)
        elif max(cccsum) > rawthresh:
            peaks = findpeaks.find_peaks2_short(cccsum, rawthresh,
                                                trig_int * stream[0].stats.
                                                sampling_rate, debug)
        else:
            print('No peaks found above threshold')
            peaks = False
        toc = time.clock()
        if debug >= 1:
            print(' '.join(['Finding peaks took:', str(toc - tic), 's']))
        if peaks:
            for peak in peaks:
                detecttime = stream[0].stats.starttime +\
                    peak[1] / stream[0].stats.sampling_rate
                # Detect time must be valid QuakeML uri within resource_id.
                # This will write a formatted string which is still readable by UTCDateTime
                rid = ResourceIdentifier(id=template_names[i] + '_' +
                                         str(detecttime.strftime('%Y%m%dT%H%M%S.%f')),
                                         prefix='smi:local')
                ev = Event(resource_id=rid)
                cr_i = CreationInfo(author='EQcorrscan',
                                    creation_time=UTCDateTime())
                ev.creation_info = cr_i
                # All detection info in Comments for lack of a better idea
                thresh_str = 'threshold=' + str(rawthresh)
                ccc_str = 'detect_val=' + str(peak[0])
                used_chans = 'channels used: ' +\
                             ' '.join([str(pair) for pair in chans[i]])
                ev.comments.append(Comment(text=thresh_str))
                ev.comments.append(Comment(text=ccc_str))
                ev.comments.append(Comment(text=used_chans))
                min_template_tm = min([tr.stats.starttime for tr in template])
                for tr in template:
                    if (tr.stats.station, tr.stats.channel) not in chans[i]:
                        continue
                    else:
                        pick_tm = detecttime + (tr.stats.starttime - min_template_tm)
                        wv_id = WaveformStreamID(network_code=tr.stats.network,
                                                 station_code=tr.stats.station,
                                                 channel_code=tr.stats.channel)
                        ev.picks.append(Pick(time=pick_tm, waveform_id=wv_id))
                detections.append(DETECTION(template_names[i],
                                            detecttime,
                                            no_chans[i], peak[0], rawthresh,
                                            'corr', chans[i], event=ev))
                if output_cat:
                    det_cat.append(ev)
        if extract_detections:
            detection_streams = extract_from_stream(stream, detections)
    del stream, templates
    if output_cat and not extract_detections:
        return detections, det_cat
    elif not extract_detections:
        return detections
    elif extract_detections and not output_cat:
        return detections, detection_streams
    else:
        return detections, det_cat, detection_streams
开发者ID:xiansch,项目名称:EQcorrscan,代码行数:104,代码来源:match_filter.py


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