diff --git a/scripts/mkcirclepath b/scripts/mkcirclepath
index 4ec817de62f2060c32cf1a5fbed6a60b2e74f342..c4dd04dc3eed881925b0e8f2e3048ba953a1229d 100755
--- a/scripts/mkcirclepath
+++ b/scripts/mkcirclepath
@@ -8,9 +8,9 @@ require 'tfm.pl';
 
 $fovy  = 71;					# Y-axis field of view (included in .wf file)
 
-$start = "0 0 0   0.703464 -90.24 -29.3133";	# starting "jump" view
-$axis  = "0 0 1";				# rotation axis
-$center = "0 0 0";				# fixed point of rotation
+$start = $ARGV[0] || "0 0 0   0.703464 -90.24 -29.3133";	# starting "jump" view
+$axis  = $ARGV[1] || "0 0 1";				# rotation axis
+$center = $ARGV[2] || "0 0 0";				# fixed point of rotation
 $angle = 360;					# rotate through this total angle
 $time  = 25;					# seconds duration