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[update] warn user in case of low SNR for manual pick

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This commit is contained in:
Marcel Paffrath 2018-08-16 16:14:48 +02:00
parent ce1564c2f8
commit 6546f8f196
1 changed files with 28 additions and 9 deletions
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37
pylot/core/util/widgets.py
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@ -1203,7 +1203,8 @@ class PylotCanvas(FigureCanvas):
def plotWFData(self, wfdata, title=None, zoomx=None, zoomy=None,
noiselevel=None, scaleddata=False, mapping=True,
component='*', nth_sample=1, iniPick=None, verbosity=0,
plot_additional=False, additional_channel=None, scaleToChannel=None):
plot_additional=False, additional_channel=None, scaleToChannel=None,
snr=None):
ax = self.axes[0]
ax.cla()
@ -1323,6 +1324,14 @@ class PylotCanvas(FigureCanvas):
self.setXLims(ax, zoomx)
if zoomy is not None:
self.setYLims(ax, zoomy)
if snr is not None:
if snr < 2:
warning = 'LOW SNR'
if snr < 1.5:
warning = 'VERY LOW SNR'
ax.text(0.1, 0.9, 'WARNING - {}'.format(warning), ha='center', va='center', transform=ax.transAxes,
color='red')
self.draw()
@staticmethod
@ -2280,6 +2289,12 @@ class PickDlg(QDialog):
filterphase = 'S'
return filterphase
def getNoiseWin(self, phase):
twins_phase = {'P': 'tsnrz',
'S': 'tsnrh'}
return self.parameter.get(twins_phase[phase])[:3]
def setIniPickP(self, gui_event):
self.setIniPickPS(gui_event, phase='P')
@ -2291,17 +2306,12 @@ class PickDlg(QDialog):
nfac_phase = {'P': 'nfacP',
'S': 'nfacS'}
twins_phase = {'P': 'tsnrz',
'S': 'tsnrh'}
parameter = self.parameter
ini_pick = gui_event.xdata
nfac = parameter.get(nfac_phase[phase])
twins = parameter.get(twins_phase[phase])
noise_win = twins[0]
gap_win = twins[1]
signal_win = twins[2]
noise_win, gap_win, signal_win = self.getNoiseWin(phase)
stime = self.getStartTime()
@ -2355,12 +2365,14 @@ class PickDlg(QDialog):
trace.data *= noiseScaleFactor
noiselevels[channel] *= noiseScaleFactor
x_res = getResolutionWindow(np.mean(snr), parameter.get('extent'))
mean_snr = np.mean(snr)
x_res = getResolutionWindow(mean_snr, parameter.get('extent'))
xlims = [ini_pick - x_res, ini_pick + x_res]
ylims = list(np.array([-.5, .5]) + [0, len(data) - 1])
title = self.getStation() + ' picking mode'
title += ' | SNR: {}'.format(mean_snr)
if filterphase:
filtops_str = transformFilteroptions2String(filteroptions)
title += ' | Filteroptions: {}'.format(filtops_str)
@ -2375,7 +2387,9 @@ class PickDlg(QDialog):
scaleddata=True,
iniPick=ini_pick,
plot_additional=plot_additional,
additional_channel=additional_channel)
additional_channel=additional_channel,
snr=mean_snr)
def setPick(self, gui_event):
@ -2447,6 +2461,11 @@ class PickDlg(QDialog):
self.zoomAction.setEnabled(True)
# self.pick_block = self.togglPickBlocker()
# self.resetZoom()
noise_win, gap_win, signal_win = self.getNoiseWin(phase)
snr, snrDB, noiselevel = getSNR(wfdata, (noise_win, gap_win, signal_win), pick - stime_diff)
print('SNR of final pick: {}'.format(snr))
if snr < 1.5:
QMessageBox.warning(self, 'SNR too low', 'WARNING! SNR of final pick below 1.5! SNR = {}'.format(snr))
self.leave_picking_mode()
def savePick(self, phase, phasepicks):