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-rw-r--r--Carpet/CarpetEvolutionMask/param.ccl6
1 files changed, 6 insertions, 0 deletions
diff --git a/Carpet/CarpetEvolutionMask/param.ccl b/Carpet/CarpetEvolutionMask/param.ccl
index 5f79f615a..7f890e10a 100644
--- a/Carpet/CarpetEvolutionMask/param.ccl
+++ b/Carpet/CarpetEvolutionMask/param.ccl
@@ -20,3 +20,9 @@ STRING enforce_vars "Enforce mask in MoL automatically on the following variable
{
"" :: "a list of variables or groups"
} ""
+
+INT enlarge_evolved_region_by "enlarge or shrink evolved region" STEERABLE=always
+{
+ 0:* :: "positive values enlarge the evolved region"
+ *:0) :: "negative values shrink the evolved region. Up to buffer_width + nghostzones points can be removed"
+} 0