Index: /branches/eam_branches/ohana.20190329/src/kapa2/src/SetUpGraphic.c
===================================================================
--- /branches/eam_branches/ohana.20190329/src/kapa2/src/SetUpGraphic.c	(revision 40821)
+++ /branches/eam_branches/ohana.20190329/src/kapa2/src/SetUpGraphic.c	(revision 40822)
@@ -91,5 +91,5 @@
 
   if (isfinite(sigma)) {
-    if ((sigma < 10.0) && (sigma >= 0.0)) {
+    if ((sigma <= 1.1) && (sigma >= 0.0)) {
       graphic->smooth_sigma = sigma;
     }
Index: /branches/eam_branches/ohana.20190329/src/kapa2/src/bDrawIt.c
===================================================================
--- /branches/eam_branches/ohana.20190329/src/kapa2/src/bDrawIt.c	(revision 40821)
+++ /branches/eam_branches/ohana.20190329/src/kapa2/src/bDrawIt.c	(revision 40822)
@@ -36,6 +36,6 @@
   // apply anti-aliasing only to the graph
   if (graphic->smooth_sigma > 0.0) {
-    // XXX getting a strange value
-    graphic->smooth_sigma = MAX (graphic->smooth_sigma, 5.0);
+    // anything > 1.1 blurs the image too much
+    graphic->smooth_sigma = MIN (graphic->smooth_sigma, 1.1);
     bDrawSmooth (graph, graphic->smooth_sigma);
   }