[bugfix] If getsignalwindow provided an empty array, checksignallength failed and lead to incomplete pick dictionaries.

pylot/core/pick/utils.py

@@ -8,7 +8,6 @@
    :author: Ludger Kueperkoch, BESTEC GmbH
 """
 import warnings
-
 import matplotlib.pyplot as plt
 import numpy as np
 from scipy.signal import argrelmax
@@ -503,6 +502,7 @@ def getsignalwin(t, t1, tsignal):
     isignal, = np.where((t <= min([t1 + tsignal, t[-1]]))
                         & (t >= t1))
     if np.size(isignal) < 1:
+        isignal = None
         print("getsignalwin: Empty array isignal, check signal window!")
 
     return isignal
@@ -829,6 +829,12 @@ def checksignallength(X, pick, minsiglength, pickparams, iplot=0, fig=None, line
     inoise = getnoisewin(t, pick, TSNR[0], TSNR[1])
     # get signal window
     isignal = getsignalwin(t, pick, minsiglength)
+    if isignal is None:
+        print("checksignallength: Empty array after pick!")
+        print("Presumably picked noise peak, pick is rejected!")
+        print("(min. signal length required: %s s)" % minsiglength)
+        returnflag = 0
+    else:    
         # calculate minimum adjusted signal level
         minsiglevel = np.mean(rms[inoise]) * nfac
         # minimum adjusted number of samples over minimum signal level