Index: trunk/SDToolBox/extract_data_utils.py
===================================================================
diff -u -r213 -r214
--- trunk/SDToolBox/extract_data_utils.py	(.../extract_data_utils.py)	(revision 213)
+++ trunk/SDToolBox/extract_data_utils.py	(.../extract_data_utils.py)	(revision 214)
@@ -103,7 +103,7 @@
     """
     unravel_idx = np.unravel_index(index, idx_shape)
     if not isinstance(unravel_idx[0], (list, np.ndarray)):
-        return np.array(unravel_idx[0]), np.array(unravel_idx[1])
+        return np.array([unravel_idx[0]]), np.array([unravel_idx[1]])
     return unravel_idx