From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Mon, 20 Dec 2010 04:05:44 +0000 (+0000)
Subject: Add a comment.
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c54aabe3e1bdc1f7e1889c06df6e123b562e3e59;p=dealii-svn.git

Add a comment.


git-svn-id: https://svn.dealii.org/trunk@23016 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/source/fe/mapping_q1.cc b/deal.II/source/fe/mapping_q1.cc
index 34f474b93b..9a8485f722 100644
--- a/deal.II/source/fe/mapping_q1.cc
+++ b/deal.II/source/fe/mapping_q1.cc
@@ -1087,11 +1087,19 @@ namespace internal
 						   // tangent and the cell
 						   // normal:
 		  if ( (dim==1) && (spacedim==2) )
-						     // need to think how to
-						     // figure out whether we
-						     // need to point to the
-						     // left or right
-		    Assert (false, ExcNotImplemented())
+		    {
+						       // need to think how to
+						       // do this. the code
+						       // should be something
+						       // like the below, but
+						       // I can't test it
+						       // right now since we
+						       // can't use
+						       // FEFaceValues in 1d
+		      Assert (false, ExcNotImplemented());
+		      cross_product (boundary_forms[point],
+				     (face_no == 0 ? 1 : -1) * cell_normal);
+		    }
 		  else if ( (dim==2) && (spacedim==3) )
 		    cross_product (boundary_forms[point],
 				   data.aux[0][point], cell_normal);