[GRASS-SVN] r57641 - grass/trunk/lib/python/temporal

[svn_grass at osgeo.org]

Author: huhabla
Date: 2013-09-11 12:54:07 -0700 (Wed, 11 Sep 2013)
New Revision: 57641

Modified:
   grass/trunk/lib/python/temporal/spatio_temporal_relationships.py
Log:
Fixed spatial topology computation for equivalent relation.


Modified: grass/trunk/lib/python/temporal/spatio_temporal_relationships.py
===================================================================
--- grass/trunk/lib/python/temporal/spatio_temporal_relationships.py	2013-09-11 18:29:43 UTC (rev 57640)
+++ grass/trunk/lib/python/temporal/spatio_temporal_relationships.py	2013-09-11 19:54:07 UTC (rev 57641)
@@ -693,14 +693,15 @@
 def set_spatial_relationship(A, B, relation):
 
     if relation == "equivalent":
-        if not B.get_equivalent() or \
-        (B.get_equivalent() and \
-        A not in B.get_equivalent()):
-            B.append_equivalent(A)
-        if not A.get_equivalent() or \
-        (A.get_equivalent() and \
-        B not in A.get_equivalent()):
-            A.append_equivalent(B)
+	if A != B:
+            if not B.get_equivalent() or \
+            (B.get_equivalent() and \
+            A not in B.get_equivalent()):
+                B.append_equivalent(A)
+            if not A.get_equivalent() or \
+            (A.get_equivalent() and \
+            B not in A.get_equivalent()):
+                A.append_equivalent(B)
     elif relation == "overlap":
         if not B.get_overlap() or \
             (B.get_overlap() and \