From d4f67153372e7a6f185cee3b62685b71eecfb47d Mon Sep 17 00:00:00 2001
From: Oliver Sander <sander@igpm.rwth-aachen.de>
Date: Tue, 23 Mar 2010 06:22:21 +0000
Subject: [PATCH] infinitesimalVariation for Rotation<2>

[[Imported from SVN: r5789]]
---
 src/localgeodesicfestiffness.hh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/localgeodesicfestiffness.hh b/src/localgeodesicfestiffness.hh
index 7b9f5b53..d22b9181 100644
--- a/src/localgeodesicfestiffness.hh
+++ b/src/localgeodesicfestiffness.hh
@@ -52,6 +52,12 @@ class LocalGeodesicFEStiffness
                                            (i==2)*eps));
     }
 
+    static void infinitesimalVariation(Rotation<2,double>& c, double eps, int i)
+    {
+        Dune::FieldVector<double,1> v(eps);
+        c = Rotation<2,double>::exp(c,v);
+    }
+
     static void infinitesimalVariation(RealTuple<2>& c, double eps, int i)
     {
         Dune::FieldVector<double,2> v(0);
-- 
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