bugfix: seismicshot dictionary for repick button was overwritten

pylot/core/active/seismicshot.py

@@ -34,6 +34,7 @@ class SeismicShot(object):
         self.snr = {}
         self.snrthreshold = {}
         self.timeArray = {}
+        self.traces4plot = {}
         self.paras = {}
         self.paras['shotname'] = obsfile
 
@@ -635,8 +636,9 @@ class SeismicShot(object):
         button2 = Button(axb2, 'delete', color = 'green', hovercolor = 'grey')
         button2.on_clicked(rmPick)
 
-        self.traces4plot = {}
         if traceID not in self.traces4plot.keys():
+            self.traces4plot[traceID] = {}
+
         self.traces4plot[traceID] = {'fig': fig,
                                      'ax1': ax1,
                                      'ax2': ax2,