From ce7474614372b9f06a827e4b767262fd8bf5051b Mon Sep 17 00:00:00 2001
From: Jonathan Youett <youett@mi.fu-berlin.de>
Date: Tue, 18 Oct 2011 12:15:54 +0000
Subject: [PATCH] add method to embedd the skew matrix in R^3x3
[[Imported from SVN: r7942]]
---
dune/gfe/skewmatrix.hh | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/dune/gfe/skewmatrix.hh b/dune/gfe/skewmatrix.hh
index 77eb710c..5b28a480 100644
--- a/dune/gfe/skewmatrix.hh
+++ b/dune/gfe/skewmatrix.hh
@@ -38,6 +38,22 @@ public:
{
return data_;
}
+
+ /** \brief Embedd the skey-symmetric matrix in R^3x3 */
+ Dune::FieldMatrix<T,3,3> toMatrix()
+ {
+ Dune::FieldMatrix<T,3,3> mat;
+ mat = 0;
+
+ mat[0][1] = -data_[2];
+ mat[1][0] = data_[2];
+ mat[0][2] = data_[1];
+ mat[2][0] = -data_[1];
+ mat[1][2] = -data_[0];
+ mat[2][1] = data_[0];
+
+ return mat;
+ }
private:
// we store the axial vector
@@ -45,4 +61,4 @@ private:
};
-#endif
\ No newline at end of file
+#endif
--
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