transparent (3,3) reshape of matrix when generating orientation.

lib/damask/orientation.py

@@ -432,6 +432,9 @@ class Quaternion:
 
     @classmethod
     def fromMatrix(cls, m):
+      if m.shape != (3,3) and np.prod(m.shape) == 9:
+        m = m.reshape(3,3)
+      
       tr=m[0,0]+m[1,1]+m[2,2]
       if tr > 0.00000001:
         s = math.sqrt(tr + 1.0)*2.0
@@ -710,9 +713,9 @@ class Symmetry:
                          [ 1., 0., 0.],
                          [ 0., 1., 0.] ])
     else:
-      basis = None
+      basis = np.zeros((3,3),dtype=float)
 
-    if basis == None:
+    if np.all(basis == 0.0):
       theComponents = -np.ones(3,'d')
     else:
       theComponents = np.dot(basis,np.array([vector[0],vector[1],abs(vector[2])]))