Index: trunk/BNC/src/rinex/graphwin.cpp
===================================================================
--- trunk/BNC/src/rinex/graphwin.cpp	(revision 4329)
+++ trunk/BNC/src/rinex/graphwin.cpp	(revision 4330)
@@ -41,4 +41,5 @@
 #include "graphwin.h"
 #include "qwt_scale_widget.h"
+#include <qwt_scale_engine.h>
 
 using namespace std;
@@ -74,5 +75,10 @@
    _colorScale->setTitle( title );
 
-   _colorScale->setColorMap(QwtInterval(0.0, 1.0), new t_colorMap());
+   QwtInterval interval(0.0, 1.0);
+   _colorScale->setColorMap(interval, new t_colorMap());
+
+   QwtLinearScaleEngine scaleEngine;
+    _colorScale->setScaleDiv(scaleEngine.transformation(),
+      scaleEngine.divideScale(interval.minValue(), interval.maxValue(), 8, 5));
 
   // Layout