Added a parameter to schoose inward going surfaces instead of outward

going surfaces. If tracking inward going surfaces it is not an event horizon
finder anymore, but this feature might be useful for other things.


git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinAnalysis/EHFinder/trunk@121 2a26948c-0e4f-0410-aee8-f1d3e353619c

1 files changed, 6 insertions, 0 deletions

diff --git a/param.ccl b/param.ccl
index e20eeeb..8f62563 100644
--- a/param.ccl
+++ b/param.ccl
@@ -128,6 +128,12 @@ KEYWORD upwind_type "Type of upwinding used in evolving the ehfinder equations"
   "characteristic" :: "Use characteristic information"
 } "intrinsic"
 
+KEYWORD surface_direction "Should we track outward or inward moving surfaces"
+{
+  "outward" :: "Track outward moving surfaces. Use for event horizon finding."
+  "inward"  :: "Track inward moving surfaces."
+} "outward"
+
 BOOLEAN reparam_undo "Should re-parametrization be undone at pinch-off"
 {
 } "no"