Index: /fact/tools/pyscripts/pyfact/coor.py
===================================================================
--- /fact/tools/pyscripts/pyfact/coor.py	(revision 13180)
+++ /fact/tools/pyscripts/pyfact/coor.py	(revision 13181)
@@ -41,7 +41,11 @@
         ey = Vector2( 0. , 1. )
         ex = Vector2( sqrt(3)/2. , 1./2. )
+        self.center = ( center.x , center.y )
+        self.ey =  ( ey.x, ey.y)
+        self.ex = ( ex.x, ex.y )
 
         coor2chid = {}
         chid2coor = {}
+        chid2coor_np = {}
         chid2vec  = {}
         for vector_and_chid in vectors_and_chids:
@@ -68,4 +72,5 @@
             coor2chid[ coor ] = chid
             chid2coor[ chid ] = coor
+            chid2coor_np[ chid ] = np.array(coor)
             chid2vec[ chid ] = coor_vec
 
@@ -86,4 +91,5 @@
         self.nn = chid2nn
         self.chid2coor = chid2coor
+        self.chid2coor_np = chid2coor_np
         self.coor2chid = coor2chid
         self.chid2vec  = chid2vec