Implement a dialog to plot and export GPS data

Create a dialog with buttons to plot and export GPS data.

Show information about a GPS data point when user clicks on it.

#19 (closed)

sohstationviewer/view/plotting/gps_dialog.py

@@ -41,8 +41,8 @@ class GPSWidget(QtWidgets.QWidget):
         max_longitude = max(all_longitudes)
         min_longitude = min(all_longitudes)
 
-        self.ax.plot(all_longitudes, all_latitudes, 'ws', markersize=3,
-                     markeredgecolor='black')
+        self.ax.plot(all_longitudes, all_latitudes, 'ws', markersize=4,
+                     markeredgecolor='black', picker=True, pickradius=4)
 
         latitude_range = max_latitude - min_latitude
         longitude_range = max_longitude - min_longitude