--- trunk/src/primitives/DirectionalAtom.cpp	2009/11/25 20:02:06	1390
+++ branches/development/src/primitives/DirectionalAtom.cpp	2010/07/09 23:08:25	1465
@@ -134,10 +134,14 @@ namespace OpenMD {
     ephi[1] = 0.0;
     ephi[2] = 1.0;
     
-    etheta[0] = -sphi;
-    etheta[1] =  cphi;
-    etheta[2] =  0.0;
+    //etheta[0] = -sphi;
+    //etheta[1] =  cphi;
+    //etheta[2] =  0.0;
     
+    etheta[0] = cphi;
+    etheta[1] = sphi;
+    etheta[2] = 0.0;
+    
     epsi[0] = stheta * cphi;
     epsi[1] = stheta * sphi;
     epsi[2] = ctheta;