dev

plot/MchDataCenter.py

@@ -154,6 +154,13 @@ class MchDataCenter(object):
                 result.append(sub.name)
         return result
 
+    def all_none(self, **kwargs):
+        for key, val in kwargs.items():
+            if val is not None:
+                return False
+
+        return True
+
     def draw_plot(self, start_time, interval=300, **kwargs):
         logger = logging.getLogger('app')
         hfive = h5py.File(self._file_name, 'r')