From 9b8c9769c0b7ad4e232550609f8e99d3d5b24f3c Mon Sep 17 00:00:00 2001
From: William Joye <wjoye@cfa.harvard.edu>
Date: Fri, 21 Sep 2018 15:44:21 -0400
Subject: Axis tick labels: zero out any extremely small numbers

---
 generic/tkbltGrAxis.C | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/generic/tkbltGrAxis.C b/generic/tkbltGrAxis.C
index 8532600..418abbb 100644
--- a/generic/tkbltGrAxis.C
+++ b/generic/tkbltGrAxis.C
@@ -1049,6 +1049,10 @@ TickLabel* Axis::makeLabel(double value)
 
   char string[TICK_LABEL_SIZE + 1];
 
+  // zero out any extremely small numbers
+  if (value<DBL_EPSILON && value>-DBL_EPSILON)
+    value =0;
+
   if (ops->tickFormat && *ops->tickFormat) {
     snprintf(string, TICK_LABEL_SIZE, ops->tickFormat, value);
   } else if (ops->logScale) {
-- 
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