akima no good either but check it in anyway

diff --git a/interpolate.c b/interpolate.c
index 1de2beab6b04cd543810f80b9073dd2236c3958b..f5d7c1bb9c727517e9bb3784f3cc5f64ac41d9b0 100644 (file)
--- a/interpolate.c
+++ b/interpolate.c
@@ -113,11 +113,11 @@ static void interpolate_line(int startvertex,
     NEXTV;
   }
   if (traverse.v>=0) {
-    it= gsl_interp_cspline_periodic;
+    it= gsl_interp_akima_periodic;
     nold= i+1;
     nnew= i;
   } else {
-    it= gsl_interp_cspline;
+    it= gsl_interp_akima;
     nold= i;
     nnew= i-1;
   }