# HG changeset patch
# User Hasan Yavuz ÖZDERYA <hy@ozderya.net>
# Date 2017-08-16 12:28:53
# Node ID c35baca487568442b3302edade250380b872b5e3
# Parent  f102fddaeb9fa5bbd2aefb19c4fd85a2943e5b1a

fix auto show symbols

diff --git a/src/plot.cpp b/src/plot.cpp
--- a/src/plot.cpp
+++ b/src/plot.cpp
@@ -39,6 +39,7 @@ Plot::Plot(QWidget* parent) :
     isAutoScaled = true;
     symbolSize = 0;
     numOfSamples = 1;
+    plotWidth = 1;
     showSymbols = Plot::ShowSymbolsAuto;
 
     QObject::connect(&zoomer, &Zoomer::unzoomed, this, &Plot::unzoomed);
@@ -302,7 +303,8 @@ void Plot::calcSymbolSize()
     auto scaleDist = sw->scaleDraw()->scaleMap().sDist();
     auto fullScaleDist = zoomer.zoomBase().width();
     auto zoomRate = fullScaleDist / scaleDist;
-    float samplesInView = numOfSamples / zoomRate;
+    float plotWidthNumSamp = abs(numOfSamples * plotWidth / (_xMax - _xMin));
+    float samplesInView = plotWidthNumSamp / zoomRate;
     int symDisPx = round(paintDist / samplesInView);
 
     if (symDisPx < SYMBOL_SHOW_AT_WIDTH)
@@ -351,5 +353,6 @@ void Plot::setNumOfSamples(unsigned valu
 
 void Plot::setPlotWidth(double width)
 {
+    plotWidth = width;
     zoomer.setHViewSize(width);
 }
diff --git a/src/plot.h b/src/plot.h
--- a/src/plot.h
+++ b/src/plot.h
@@ -84,6 +84,7 @@ private:
     double yMin, yMax;
     double _xMin, _xMax;
     unsigned numOfSamples;
+    double plotWidth;
     int symbolSize;
     Zoomer zoomer;
     ScaleZoomer sZoomer;