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Merge pull request #224 from rmodrak/master
Group velocity window selection
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
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| import numpy as np | ||
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| from matplotlib import pyplot | ||
| from obspy.geodetics import gps2dist_azimuth | ||
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| def station_label_writer(ax, station, origin, units='km'): | ||
| """ Displays station id, distance, and azimuth to the left of current axes | ||
| """ | ||
| distance_in_m, azimuth, _ = gps2dist_azimuth( | ||
| origin.latitude, | ||
| origin.longitude, | ||
| station.latitude, | ||
| station.longitude) | ||
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| # construct station label | ||
| if len(station.location) > 1: | ||
| label = station.network + '.' + station.station + '.' + station.location | ||
| else: | ||
| label = station.network + '.' + station.station | ||
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| # display station label | ||
| pyplot.text(0.2,0.50, label, fontsize=11, transform=ax.transAxes) | ||
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| # display distance | ||
| if units=='m': | ||
| label = '%d m' % round(distance_in_m) | ||
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| elif units=='km': | ||
| label = '%d km' % round(distance_in_m/1000.) | ||
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| elif units=='deg': | ||
| label = '%d%s' % (round(m_to_deg(distance_in_m)), u'\N{DEGREE SIGN}') | ||
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| pyplot.text(0.2,0.35, label, fontsize=11, transform=ax.transAxes) | ||
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| # display azimuth | ||
| azimuth = '%d%s' % (round(azimuth), u'\N{DEGREE SIGN}') | ||
| pyplot.text(0.2,0.20, azimuth, fontsize=11, transform=ax.transAxes) | ||
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| def trace_label_writer(axis, dat, syn, total_misfit=1.): | ||
| """ Displays cross-correlation time shift and misfit information below trace | ||
| """ | ||
| ymin = axis.get_ylim()[0] | ||
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| s = syn.data | ||
| d = dat.data | ||
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| # display cross-correlation time shift | ||
| time_shift = 0. | ||
| time_shift += _getattr(syn, 'time_shift', np.nan) | ||
| time_shift += _getattr(dat, 'static_time_shift', 0) | ||
| axis.text(0.,(1/4.)*ymin, '%.2f' %time_shift, fontsize=11) | ||
|
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| # display maximum cross-correlation coefficient | ||
| Ns = np.dot(s,s)**0.5 | ||
| Nd = np.dot(d,d)**0.5 | ||
| if Ns*Nd > 0.: | ||
| max_cc = np.correlate(s, d, 'valid').max() | ||
| max_cc /= (Ns*Nd) | ||
| axis.text(0.,(2/4.)*ymin, '%.2f' %max_cc, fontsize=11) | ||
| else: | ||
| max_cc = np.nan | ||
| axis.text(0.,(2/4.)*ymin, '%.2f' %max_cc, fontsize=11) | ||
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| # display percent of total misfit | ||
| misfit = _getattr(syn, 'misfit', np.nan) | ||
| misfit /= total_misfit | ||
| if misfit >= 0.1: | ||
| axis.text(0.,(3/4.)*ymin, '%.1f' %(100.*misfit), fontsize=11) | ||
| else: | ||
| axis.text(0.,(3/4.)*ymin, '%.2f' %(100.*misfit), fontsize=11) | ||
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| # | ||
| # utility functions | ||
| # | ||
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| def _getattr(trace, name, *args): | ||
| if len(args)==1: | ||
| if not hasattr(trace, 'attrs'): | ||
| return args[0] | ||
| else: | ||
| return getattr(trace.attrs, name, args[0]) | ||
| elif len(args)==0: | ||
| return getattr(trace.attrs, name) | ||
| else: | ||
| raise TypeError("Wrong number of arguments") | ||
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