small enhancements

nifty4/field.py

@@ -170,6 +170,11 @@ class Field(object):
         """
         return Field(domain, dobj.from_global_data(arr))
 
+    @staticmethod
+    def from_local_data(domain, arr):
+        domain = DomainTuple.make(domain)
+        return Field(domain, dobj.from_local_data(domain.shape, arr))
+
     def to_global_data(self):
         """Returns an array containing the full data of the field.
 
@@ -802,6 +807,24 @@ class Field(object):
     def __ipow__(self, other):
         return self._binary_helper(other, op='__ipow__')
 
+    def __lt__(self, other):
+        return self._binary_helper(other, op='__lt__')
+
+    def __le__(self, other):
+        return self._binary_helper(other, op='__le__')
+
+    def __ne__(self, other):
+        return self._binary_helper(other, op='__ne__')
+
+    def __eq__(self, other):
+        return self._binary_helper(other, op='__eq__')
+
+    def __ge__(self, other):
+        return self._binary_helper(other, op='__ge__')
+
+    def __gt__(self, other):
+        return self._binary_helper(other, op='__gt__')
+
     def __repr__(self):
         return "<nifty4.Field>"
 

nifty4/library/wiener_filter_curvature.py

@@ -40,4 +40,4 @@ def WienerFilterCurvature(R, N, S, inverter):
         The minimizer to use during numerical inversion
     """
     op = SandwichOperator(R, N.inverse) + S.inverse
-    return InversionEnabler(op, inverter, S.times)
+    return InversionEnabler(op, inverter, S)