From ece5fc8924dda7f9ce3194753cdf2703a8a39057 Mon Sep 17 00:00:00 2001
From: mattijs <mattijs@hunt.opencfd.co.uk>
Date: Wed, 26 Nov 2008 11:14:29 +0000
Subject: [PATCH] distance at centre

---
 src/meshTools/searchableSurface/searchableSphere.C | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/meshTools/searchableSurface/searchableSphere.C b/src/meshTools/searchableSurface/searchableSphere.C
index 04f3f2f2b5..74ac1929a6 100644
--- a/src/meshTools/searchableSurface/searchableSphere.C
+++ b/src/meshTools/searchableSurface/searchableSphere.C
@@ -292,7 +292,8 @@ void Foam::searchableSphere::getNormal
         if (info[i].hit())
         {
             normal[i] = info[i].hitPoint() - centre_;
-            normal[i] /= mag(normal[i]);
+
+            normal[i] /= mag(normal[i])+VSMALL;
         }
         else
         {