change histogram2D with qcustomplot

FSUDAQ.cpp

@@ -1298,6 +1298,6 @@ void MainWindow::LogMsg(QString msg){
   }
   QScrollBar *v = logInfo->verticalScrollBar();
   v->setValue(v->maximum());
-  qDebug() << outputStr;
+  //qDebug() << outputStr;
   logInfo->repaint();
 }

FSUDAQ_Qt6.pro

@@ -6,11 +6,13 @@ TEMPLATE = app
 TARGET = FSUDAQ_Qt6
 INCLUDEPATH += .
 
-#QT += core widgets charts webenginewidgets
-QT += core widgets charts
+QT += core widgets charts printsupport
 
-QMAKE_CXXFLAGS += -g `root-config --cflags --glibs`
-LIBS += -lCAENDigitizer -lcurl `root-config --cflags --glibs`
+#QMAKE_CXXFLAGS += -g `root-config --cflags --glibs`
+#LIBS += -lCAENDigitizer -lcurl `root-config --cflags --glibs`
+
+QMAKE_CXXFLAGS += -g
+LIBS += -lCAENDigitizer -lcurl
 
 # You can make your code fail to compile if you use deprecated APIs.
 # In order to do so, uncomment the following line.
@@ -32,7 +34,8 @@ HEADERS += ClassData.h \
            Scope.h \
            CanvasClass.h \
            OnlineEventBuilder.h \
-           OnlineAnalyser.h
+           OnlineAnalyser.h \
+           qcustomplot.h
 SOURCES += ClassDigitizer.cpp \
            DigiSettingsPanel.cpp \
            FSUDAQ.cpp \
@@ -41,4 +44,5 @@ SOURCES += ClassDigitizer.cpp \
            Scope.cpp \
            CanvasClass.cpp \
            OnlineEventBuilder.cpp \
-           OnlineAnalyser.cpp
+           OnlineAnalyser.cpp \
+           qcustomplot.cpp

OnlineAnalyser.cpp

@@ -51,25 +51,19 @@ void OnlineAnalyzer::StopThread(){
 
 void OnlineAnalyzer::SetUpCanvas(){
 
-  //TODO a simple way to set it at once
-  h2 = new Histogram2D("testing", 0, 4000, 0, 4000);
-  RChartView * h2View = new RChartView(h2->GetChart());
-  h2->SetMarkerSize(2);
-  h2View->SetVRange(0, 4000); // this only set the reset key 'r' 
-  h2View->SetHRange(0, 4000);
-
-  layout->addWidget(h2View);
+  h2 = new Histogram2D("testing", "x", "y", 100, 0, 4000, 100, 0, 4000, this);
+  layout->addWidget(h2);
 
 
   //Histogram * h1 = new Histogram("h1", 0, 5000, 200);
 
 
-  // std::random_device rd;
-  // std::mt19937 gen(rd());
-  // std::normal_distribution<double> distribution(0.0, 2.0);
-  // for( int i = 0; i < 1000 ; i++ ){
-  //   h2->Fill(distribution(gen), distribution(gen));
-  // }
+  std::random_device rd;
+  std::mt19937 gen(rd());
+  std::normal_distribution<double> distribution(2000.0, 500);
+  for( int i = 0; i < 1000 ; i++ ){
+    h2->Fill(distribution(gen), distribution(gen));
+  }
 
 }
 
@@ -78,7 +72,7 @@ void OnlineAnalyzer::UpdateHistograms(){
   //Set with digitizer to be event build
   digiMTX[0].lock();
   //digi[0]->GetData()->PrintAllData();
-  oeb[0]->BuildEvents(100, true);
+  oeb[0]->BuildEvents(100, false);
   digiMTX[0].unlock();
 
   //============ Get events, and do analysis

OnlineAnalyser.h

@@ -29,59 +29,107 @@ derivative class should define the SetUpCanvas() and UpdateHistogram();
 
 ***************************************/
 
-
-#include <QScatterSeries>
+#include "qcustomplot.h"
 
 //^==============================================
 //^==============================================
-class Histogram2D{ //TODO, cannot handle more then 3000 datapoint
+class Histogram1D : public QCustomPlot{
 public:
-  Histogram2D(QString title, double xMin, double xMax, double yMin, double yMax){
+  Histogram1D(QString title, QString xLabel, int xBin, double xMin, double xMax, QWidget * parent = nullptr) : QCustomPlot(parent){
+    this->xMin = xMin;
+    this->xMax = xMax;
+    this->xBin = xBin;
 
+    this->xAxis->setLabel(xLabel);
+
+    bars = new QCPBars(this->xAxis, this->yAxis);
+    bars->setWidth((xMax- xMin)/xBin);
+  }
+
+private:
+  double xMin, xMax, xBin;
+
+  QCPBars *bars;
+
+};
+
+//^==============================================
+//^==============================================
+class Histogram2D : public QCustomPlot{
+public:
+  Histogram2D(QString title, QString xLabel, QString yLabel, int xBin, double xMin, double xMax, int yBin, double yMin, double yMax, QWidget * parent = nullptr) : QCustomPlot(parent){
     this->xMin = xMin;
     this->xMax = xMax;
     this->yMin = yMin;
     this->yMax = yMax;
+    this->xBin = xBin;
+    this->yBin = yBin;
 
-    plot = new RChart();
-    scatterSeries = new QScatterSeries();
-    scatterSeries->setName(title);
-    scatterSeries->setMarkerShape(QScatterSeries::MarkerShapeCircle);
-    scatterSeries->setBorderColor(QColor(0,0,0,0));
-    scatterSeries->setMarkerSize(5.0);
+    axisRect()->setupFullAxesBox(true);
+    this->xAxis->setLabel(xLabel);
+    this->yAxis->setLabel(yLabel);
 
-    plot->addSeries(scatterSeries);
-    plot->createDefaultAxes();
+    colorMap = new QCPColorMap(this->xAxis, this->yAxis);
+    colorMap->data()->setSize(xBin, yBin);
+    colorMap->data()->setRange(QCPRange(xMin, xMax), QCPRange(yMin, yMax));
+    colorMap->setInterpolate(false);
 
-    QValueAxis * xaxis = qobject_cast<QValueAxis*> (plot->axes(Qt::Horizontal).first());
-    xaxis->setRange(xMin, xMax);
+    colorScale = new QCPColorScale(this);
+    this->plotLayout()->addElement(0, 1, colorScale); 
+    colorScale->setType(QCPAxis::atRight); 
+    colorMap->setColorScale(colorScale);
 
-    QValueAxis * yaxis = qobject_cast<QValueAxis*> (plot->axes(Qt::Vertical).first());
-    yaxis->setRange(yMin, yMax);
+    QCPColorGradient color;
+    color.clearColorStops();
+    color.setColorStopAt( 0,  QColor("white" ));
+    color.setColorStopAt( 1,  QColor("blue"));
+    colorMap->setGradient(color);
+
+    this->rescaleAxes();
+
+    connect(this, &QCustomPlot::mouseMove, this, [=](QMouseEvent *event){
+      double x = this->xAxis->pixelToCoord(event->pos().x());
+      double y = this->yAxis->pixelToCoord(event->pos().y());
+      int xI, yI;
+      colorMap->data()->coordToCell(x, y, &xI, &yI);
+      double z = colorMap->data()->cell(xI, yI);
+
+      // Format the coordinates as desired
+      QString coordinates = QString("X: %1, Y: %2, Z: %3").arg(x).arg(y).arg(z);
+
+      // Show the coordinates as a tooltip
+      QToolTip::showText(event->globalPosition().toPoint(), coordinates, this);
+    });
 
   }
 
-  ~Histogram2D(){
-    delete scatterSeries;
-    delete plot;
+  void Fill(double x, double y){
+    int xIndex, yIndex;
+    colorMap->data()->coordToCell(x, y, &xIndex, &yIndex);
+    //printf("%d %d\n", xIndex, yIndex);
+    if( xIndex < 0 || xBin < xIndex || yIndex < 0 || yBin < yIndex ) return;
+    double value = colorMap->data()->cell(xIndex, yIndex);
+    colorMap->data()->setCell(xIndex, yIndex, value + 1);
+
+    // rescale the data dimension (color) such that all data points lie in the span visualized by the color gradient:
+    colorMap->rescaleDataRange();
+  
+    // make sure the axis rect and color scale synchronize their bottom and top margins (so they line up):
+    // QCPMarginGroup *marginGroup = new QCPMarginGroup(this);
+    // this->axisRect()->setMarginGroup(QCP::msBottom|QCP::msTop, marginGroup);
+    // colorScale->setMarginGroup(QCP::msBottom|QCP::msTop, marginGroup);
+    
+    // rescale the key (x) and value (y) axes so the whole color map is visible:
+    this->rescaleAxes();
+
   }
 
-  double GetXMin() const {return xMin;} 
-  double GetXMax() const {return xMax;} 
-  double GetyMin() const {return yMin;} 
-  double GetyMax() const {return yMax;} 
-
-  RChart * GetChart() {return plot;}
-  void SetMarkerColor(QColor color) { scatterSeries->setColor(color); }
-  void SetMarkerSize(qreal size) { scatterSeries->setMarkerSize(size);}
-  void Clear(){  scatterSeries->clear();}
-  void Fill(double x, double y) { scatterSeries->append(x, y); }
-
 private:
   double xMin, xMax, yMin, yMax;
+  int xBin, yBin;
 
-  RChart * plot;
-  QScatterSeries * scatterSeries;
+  QCPColorMap * colorMap;
+  QCPColorScale *colorScale;
 
 };
 

README.md

@@ -16,13 +16,15 @@ CAENCOmm_v1.5.3
 
 CAENDigitizer_v2.17.1
 
+CAEN A3818 Driver
+
 `sudo apt install qt6-base-dev libcurl4-openssl-dev libqt6charts6-dev qt6-webengine-dev elog`
 
 The elog installed using apt is 3.1.3. If a higher version is needed. Please go to https://elog.psi.ch/elog/
 
 The libcurl4 is need for pushing data to InfluxDB v1.8
 
-
+The QCustomPlot (https://www.qcustomplot.com/index.php/introduction) source files are already included in the repository.
 
 # Compile