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List:       kde-commits
Subject:    KDE/kdebase/workspace/ksysguard/gui/SensorDisplayLib
From:       John Tapsell <john.tapsell () kdemail ! net>
Date:       2009-10-24 8:56:45
Message-ID: 1256374605.718289.1019.nullmailer () svn ! kde ! org
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SVN commit 1039652 by johnflux:

Cope better with NaN numbers


 M  +10 -3     SignalPlotter.cc  


--- trunk/KDE/kdebase/workspace/ksysguard/gui/SensorDisplayLib/SignalPlotter.cc \
#1039651:1039652 @@ -862,17 +862,24 @@
         if(!mStackBeams)
             y0 = y1 = y2 = 0;
         float point0 = datapoints[j];
+        if( isnan(point0) )
+            continue; //Just do not draw points with nans. skip them
+
         float point1 = prev_datapoints[j];
         float point2 = prev_prev_datapoints[j];
-        if(mSmoothGraph && !isnan(point1) && !isinf(point1)) {
+
+        if(isnan(point1))
+            point1 = point0;
+        else if(mSmoothGraph && !isinf(point1)) {
             // Apply a weighted average just to smooth the graph out a bit
             // Do not try to smooth infinities or nans
-            if(!isnan(point0) && !isinf(point0))
-                point0 = (2*point0 + point1)/3;
+            point0 = (2*point0 + point1)/3;
             if(!isnan(point2) && !isinf(point2))
                 point1 = (2*point1 + point2)/3;
             // We don't bother to average out y2.  This will introduce slight \
inaccuracies in the gradients, but they aren't really noticeable.  }
+        if(isnan(point2))
+            point2 = point1;
 
         y0 += qBound((qreal)boundingBox.top(), boundingBox.bottom() - (point0 - \
                mNiceMinValue)*scaleFac, (qreal)boundingBox.bottom());
         y1 += qBound((qreal)boundingBox.top(), boundingBox.bottom() - (point1 - \
mNiceMinValue)*scaleFac, (qreal)boundingBox.bottom());


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