Changeset 2240

Timestamp:

May 5, 2016 9:29:19 AM (7 years ago)

Author:

vondreele

Message:

Trap bad cell refinement in Rietveld

File:

• trunk/GSASIIstrMath.py (modified) (1 diff)

trunk/GSASIIstrMath.py

@@ -3259 +3259 @@
         A = [parmDict[pfx+'A%d'%(i)]+Dij[i] for i in range(6)]
         G,g = G2lat.A2Gmat(A)       #recip & real metric tensors
-        if np.any(np.diag(G)<0.):
+        if np.any(np.diag(G)<0.) or np.any(np.isnan(A)):
             raise G2obj.G2Exception('invalid metric tensor \n cell/Dij refinement not advised')
         GA,GB = G2lat.Gmat2AB(G)    #Orthogonalization matricies