Fixed Puncture class

AHFpy/Puncture.py

@@ -69,9 +69,10 @@ class Puncture():
         """
         Extrinsic cuvrvature $K_{ij}$
         """
+        x,y,z = self.CartGrid()
         K = {}
         for (i,j) in ij_indexes:
-            K[(i,j)] = 0.
+            K[(i,j)] = 0*x.
         return K
         
     def Output(self,fname):