FIX: re-add get_cursor_data now that mouseover is set to False by default

Author: jklymak

lib/matplotlib/collections.py

@@ -2196,3 +2196,11 @@ def draw(self, renderer):
         gc.restore()
         renderer.close_group(self.__class__.__name__)
         self.stale = False
+
+    def get_cursor_data(self, event):
+         contained, info = self.contains(event)
+         if len(info["ind"]) == 1:
+             ind, = info["ind"]
+             return self.get_array()[ind]
+         else:
+             return None