Fixing ciruclar lattice bug

Src/Framework/QVectors/CircularLatticeQVectors.py

@@ -46,7 +46,9 @@ class CircularLatticeQVectors(LatticeQVectors):
                                                                 
         qMax = self._configuration["shells"]["last"] + 0.5*self._configuration["width"]["value"]
                 
-        uvMax = numpy.ceil([qMax/Vector(v).length() for v in qVects.T]) + 1
+        uvMax = numpy.ceil([qMax/Vector(v).length() for v in qVects.T]) + 1
+        # Enforce integers in uvMax
+        uvMax = uvMax.astype(numpy.int64)
                 
         idxs = numpy.mgrid[-uvMax[0]:uvMax[0]+1,-uvMax[1]:uvMax[1]+1]