[move] moving functions for Richter and moment magnitude calculation to magnitude module for re-use in autoPyLoT

QtPyLoT.py

@@ -23,10 +23,11 @@ https://www.iconfinder.com/iconsets/flavour
     (http://www.gnu.org/copyleft/lesser.html)
 """
 
-import matplotlib
 import os
 import sys
 
+import matplotlib
+
 matplotlib.use('Qt4Agg')
 matplotlib.rcParams['backend.qt4'] = 'PySide'
 
@@ -37,18 +38,14 @@ from PySide.QtGui import QMainWindow, QInputDialog, QIcon, QFileDialog, \
     QDialog, QErrorMessage, QApplication, QPixmap, QMessageBox, QSplashScreen, \
     QActionGroup, QListWidget, QDockWidget, QLineEdit
 import numpy as np
-import subprocess
 from obspy import UTCDateTime
-from obspy.geodetics import degrees2kilometers
-from obspy.core.event import Magnitude
 
-from pylot.core.analysis.magnitude import calcsourcespec, calcMoMw, \
+from pylot.core.analysis.magnitude import calc_richter_magnitude, calc_moment_magnitude
-    calc_woodanderson_pp, gutenberg_richter_relation
 from pylot.core.io.data import Data
 from pylot.core.io.inputs import FilterOptions, AutoPickParameter
 from pylot.core.pick.autopick import autopickevent
 from pylot.core.pick.compare import Comparison
-from pylot.core.pick.utils import symmetrize_error, select_for_phase
+from pylot.core.pick.utils import symmetrize_error
 from pylot.core.io.phases import picksdict_from_picks
 import pylot.core.loc.nll as nll
 from pylot.core.util.defaults import FILTERDEFAULTS, COMPNAME_MAP, \
@@ -66,7 +63,6 @@ from pylot.core.util.widgets import FilterOptionsDialog, NewEventDlg, \
 from pylot.core.util.structure import DATASTRUCTURE
 from pylot.core.util.thread import AutoPickThread
 from pylot.core.util.version import get_git_version as _getVersionString
-import icons_rc
 
 locateTool = dict(nll=nll)
 
@@ -991,50 +987,7 @@ class MainWindow(QMainWindow):
 
 
     def calc_magnitude(self, type='ML'):
-        if type == 'ML':
-            return self.calc_richter_magnitude()
-        elif type == 'Mw':
-            return self.calc_moment_magnitude()
-        else:
-            return None
-
-
-    def calc_richter_magnitude(self):
-        e = self.get_data().get_evt_data()
-        if e.origins:
-            o = e.origins[0]
-            mags = dict()
-            for a in o.arrivals:
-                if a.phase not in 'sS':
-                    continue
-                pick = a.pick_id.get_referred_object()
-                station = pick.waveform_id.station_code
-                wf = select_for_phase(self.get_data().getWFData().select(
-                    station=station), a.phase)
-                delta = degrees2kilometers(a.distance)
-                wapp = calc_woodanderson_pp(wf, self.metadata, pick.time,
-                                            self.inputs.get('sstop'))
-                # using standard Gutenberg-Richter relation
-                # TODO make the ML calculation more flexible by allowing
-                # use of custom relation functions
-                mag = np.log10(wapp) + gutenberg_richter_relation(delta)
-                mags[station] = mag
-            mag = np.median([M for M in mags.values()])
-            # give some information on the processing
-            print('number of stations used: {0}\n'.format(len(mags.values())))
-            print('stations used:\n')
-            for s in mags.keys(): print('\t{0}'.format(s))
-
-            return Magnitude(mag=mag, magnitude_type='ML')
-        else:
-            return None
-
-    def calc_moment_magnitude(self):
-        e = self.get_data().get_evt_data()
         settings = QSettings()
-        if e.origins:
-            o = e.origins[0]
-            mags = dict()
         fninv = settings.value("inventoryFile", None)
         if fninv is None and not self.metadata:
             fninv, _ = QFileDialog.getOpenFileName(self, self.tr(
@@ -1049,31 +1002,10 @@ class MainWindow(QMainWindow):
                 settings.setValue("inventoryFile", fninv)
                 settings.sync()
             self.metadata = read_metadata(fninv)
-            for a in o.arrivals:
+        if type == 'ML':
-                if a.phase in 'sS':
+            return calc_richter_magnitude(self.get_data().get_evt_data(), self.get_data().getWFData(), self.metadata, self.inputs.get('sstop'))
-                    continue
+        elif type == 'Mw':
-                pick = a.pick_id.get_referred_object()
+            return calc_moment_magnitude(self.get_data().get_evt_data(), self.get_data().getWFData(), self.metadata, self.inputs.get('vp'), self.inputs.get('Qp'), self.inputs.get('rho'))
-                station = pick.waveform_id.station_code
-                wf = self.get_data().getWFData().select(station=station)
-                if not wf:
-                    continue
-                onset = pick.time
-                dist = degrees2kilometers(a.distance)
-                w0, fc = calcsourcespec(wf, onset, metadata, self.inputs.get('vp'), dist,
-                                        a.azimuth, a.takeoff_angle,
-                                        self.inputs.get('Qp'), 0)
-                if w0 is None or fc is None:
-                    continue
-                station_mag = calcMoMw(wf, w0, self.inputs.get('rho'),
-                                       self.inputs.get('vp'), dist)
-                mags[station] = station_mag
-            mag = np.median([M[1] for M in mags.values()])
-            # give some information on the processing
-            print('number of stations used: {0}\n'.format(len(mags.values())))
-            print('stations used:\n')
-            for s in mags.keys(): print('\t{0}'.format(s))
-
-            return Magnitude(mag=mag, magnitude_type='Mw')
         else:
             return None
 

pylot/core/analysis/magnitude.py

@@ -9,11 +9,13 @@ import os
 import matplotlib.pyplot as plt
 import numpy as np
 from obspy.core import Stream, UTCDateTime
-from pylot.core.pick.utils import getsignalwin, crossings_nonzero_all
+from obspy.core.event import Magnitude
+from obspy.geodetics import degrees2kilometers
+
+from pylot.core.pick.utils import getsignalwin, crossings_nonzero_all, select_for_phase
 from pylot.core.util.utils import getPatternLine
 from scipy.optimize import curve_fit
 from scipy import integrate, signal
-from pylot.core.io.data import Data
 from pylot.core.util.dataprocessing import restitute_data, read_metadata
 from pylot.core.util.utils import common_range, fit_curve
 
@@ -667,3 +669,62 @@ def fitSourceModel(f, S, fc0, iplot):
         plt.close()
 
     return w0, fc
+
+
+def calc_richter_magnitude(e, wf, metadata, amp_win):
+    if e.origins:
+        o = e.origins[0]
+        mags = dict()
+        for a in o.arrivals:
+            if a.phase not in 'sS':
+                continue
+            pick = a.pick_id.get_referred_object()
+            station = pick.waveform_id.station_code
+            wf = select_for_phase(wf.select(
+                station=station), a.phase)
+            delta = degrees2kilometers(a.distance)
+            wapp = calc_woodanderson_pp(wf, metadata, pick.time,
+                                        amp_win)
+            # using standard Gutenberg-Richter relation
+            # TODO make the ML calculation more flexible by allowing
+            # use of custom relation functions
+            mag = np.log10(wapp) + gutenberg_richter_relation(delta)
+            mags[station] = mag
+        mag = np.median([M for M in mags.values()])
+        # give some information on the processing
+        print('number of stations used: {0}\n'.format(len(mags.values())))
+        print('stations used:\n')
+        for s in mags.keys(): print('\t{0}'.format(s))
+
+        return Magnitude(mag=mag, magnitude_type='ML')
+    else:
+        return None
+
+
+def calc_moment_magnitude(e, wf, metadata, vp, Qp, rho):
+    if e.origins:
+        o = e.origins[0]
+        mags = dict()
+        for a in o.arrivals:
+            if a.phase in 'sS':
+                continue
+            pick = a.pick_id.get_referred_object()
+            station = pick.waveform_id.station_code
+            wf = wf.select(station=station)
+            if not wf:
+                continue
+            onset = pick.time
+            dist = degrees2kilometers(a.distance)
+            w0, fc = calcsourcespec(wf, onset, metadata, vp, dist, a.azimuth, a.takeoff_angle, Qp, 0)
+            if w0 is None or fc is None:
+                continue
+            station_mag = calcMoMw(wf, w0, rho, vp, dist)
+            mags[station] = station_mag
+        mag = np.median([M[1] for M in mags.values()])
+        # give some information on the processing
+        print('number of stations used: {0}\n'.format(len(mags.values())))
+        print('stations used:\n')
+        for s in mags.keys(): print('\t{0}'.format(s))
+        return Magnitude(mag=mag, magnitude_type='Mw')
+    else:
+        return None