Round middle position fix

compiler/base/vector.py

@@ -49,7 +49,7 @@ class vector():
         else:
             self.x=float(value[0])
             self.y=float(value[1])
-
+            
     def __getitem__(self, index):
         """
         override getitem function 

compiler/pgates/pgate.py

@@ -126,6 +126,8 @@ class pgate(design.design):
     def extend_wells(self, middle_position):
         """ Extend the n/p wells to cover whole cell """
 
+        # FIXME: float rounding problem
+        middle_position = middle_position.snap_to_grid()
         # Add a rail width to extend the well to the top of the rail
         nwell_max_offset = max(self.find_highest_layer_coords("nwell").y,
                                self.height + 0.5 * self.m1_width)