How i can plot result in my GUI ?

**stampede** · 3rd June 2011, 14:43

this is an instance of MainWindow class. New data signal should be connected to plotting slot.
Don't take it literally if I write "in main:" in comment, I meant mainWindow gui code.

**21did21** · 5th June 2011, 13:06

i have try this, but it still don't work.
=> but now i have less problem of compilation

main.cpp

Qt Code:

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#include <QApplication>
#include "MyMainWindow.h"
#include <QGridLayout>
#include "RunSimulation.h"
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MyMainWindow fenetre;
    fenetre.show();
    return app.exec();
}

#include <QApplication>
#include "MyMainWindow.h"
#include <QGridLayout>
#include "RunSimulation.h"
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MyMainWindow fenetre;
    fenetre.show();
    return app.exec();
}

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MyMainWindows

Qt Code:

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---------.h---------
#ifndef MYMAINWINDOW_H
#define MYMAINWINDOW_H
 
#include <QApplication>
#include <QWidget>
#include <QPushButton>
#include <QMessageBox>
#include <qwt_plot_curve.h>
#include <qwt_plot.h>
 
class MyMainWindow : public QWidget
{
    Q_OBJECT
 
public:
    explicit MyMainWindow(QWidget* parent = 0);
    void myRunSlot();
    void plotValuesFromFunction(std::vector<double>);
 
private:
    QPushButton *BUTTONRun;
    QPushButton *BUTTONQuit;
    QPushButton *BUTTONAbout;
    QPushButton *BUTTONContact;
 
    QwtPlot *myPlot1;
    QwtPlot *myPlot2;
    QwtPlot *myPlot3;
    QwtPlot *myPlot4;
    QwtPlot *myPlot5;
    QwtPlot *myPlot6;
 
    QwtPlotCurve myCurve1;
    QwtPlotCurve myCurve2;
    QwtPlotCurve myCurve3;
    QwtPlotCurve myCurve4;
    QwtPlotCurve myCurve5;
    QwtPlotCurve myCurve6;
 
};
#endif // MYMAINWINDOW_H
---------.cpp------
#include "MyMainWindow.h"
#include <QGridLayout>
#include <QHBoxLayout>
#include <qwt_plot_curve.h>
#include "RunSimulation.h"
#include <vector>
 
using namespace std;
MyMainWindow::MyMainWindow(QWidget* parent) : QWidget(parent)
{
    QGridLayout* mainLayout = new QGridLayout();
    setLayout(mainLayout);
 
    myPlot1 = new QwtPlot();
    myPlot2 = new QwtPlot();
    myPlot3 = new QwtPlot();
    myPlot4 = new QwtPlot();
    myPlot5 = new QwtPlot();
    myPlot6 = new QwtPlot();
 
    myPlot1->setMinimumSize(200, 100);
    myPlot2->setMinimumSize(200, 100);
    myPlot3->setMinimumSize(200, 100);
    myPlot4->setMinimumSize(200, 100);
    myPlot5->setMinimumSize(200, 100);
    myPlot6->setMinimumSize(200, 100);
 
    QWidget* buttonWidget = new QWidget();
    QGridLayout* buttonLayout = new QGridLayout();
 
    BUTTONRun = new QPushButton("RUN");
    BUTTONQuit = new QPushButton("STOP");
    BUTTONAbout = new QPushButton("About");
    BUTTONContact = new QPushButton("Contact");
 
    buttonLayout->addWidget(BUTTONRun    ,0,0);
    buttonLayout->addWidget(BUTTONQuit   ,0,1);
    buttonLayout->addWidget(BUTTONAbout  ,1,0);
    buttonLayout->addWidget(BUTTONContact,1,1);
 
    buttonWidget->setLayout(buttonLayout);
 
    mainLayout->addWidget(myPlot1      ,0,0,1,1);
    mainLayout->addWidget(myPlot2      ,0,1,1,1);
    mainLayout->addWidget(myPlot3      ,0,2,1,1);
    mainLayout->addWidget(myPlot4      ,1,0,1,1);
    mainLayout->addWidget(myPlot5      ,1,1,1,1);
    mainLayout->addWidget(myPlot6      ,1,2,1,1);
    mainLayout->addWidget(buttonWidget ,0,3,1,1);
 
    myCurve1.attach(myPlot1);
    myCurve2.attach(myPlot2);
    myCurve3.attach(myPlot3);
    myCurve4.attach(myPlot4);
    myCurve5.attach(myPlot5);
    myCurve6.attach(myPlot6);
 
    QObject::connect(BUTTONQuit, SIGNAL(clicked()), qApp, SLOT(quit()));
    QObject::connect(BUTTONAbout, SIGNAL(clicked()), qApp, SLOT(aboutQt()));
    QObject::connect(BUTTONRun, SIGNAL(clicked()), qApp, SLOT(myRunSlot()));
}
void MyMainWindow::plotValuesFromFunction(vector<double>points)
{
    QVector<double> x(1);
    QVector<double> y(1);
 
    x.append( points[0] );
    y.append( points[1] );
 
    myCurve1.setSamples(x.data(),y.data(),x.size());
    myCurve2.setSamples(x.data(),y.data(),x.size());
    myCurve3.setSamples(x.data(),y.data(),x.size());
    myCurve4.setSamples(x.data(),y.data(),x.size());
    myCurve5.setSamples(x.data(),y.data(),x.size());
    myCurve6.setSamples(x.data(),y.data(),x.size());
    myPlot1->replot();
    myPlot2->replot();
    myPlot3->replot();
    myPlot4->replot();
    myPlot5->replot();
    myPlot6->replot();
    myPlot1->show();
    myPlot2->show();
    myPlot3->show();
    myPlot4->show();
    myPlot5->show();
    myPlot6->show();
}
void MyMainWindow::myRunSlot()
{
    RunSimulation(this);
}

---------.h---------
#ifndef MYMAINWINDOW_H
#define MYMAINWINDOW_H

#include <QApplication>
#include <QWidget>
#include <QPushButton>
#include <QMessageBox>
#include <qwt_plot_curve.h>
#include <qwt_plot.h>

class MyMainWindow : public QWidget
{
    Q_OBJECT

public:
    explicit MyMainWindow(QWidget* parent = 0);
    void myRunSlot();
    void plotValuesFromFunction(std::vector<double>);

private:
    QPushButton *BUTTONRun;
    QPushButton *BUTTONQuit;
    QPushButton *BUTTONAbout;
    QPushButton *BUTTONContact;

    QwtPlot *myPlot1;
    QwtPlot *myPlot2;
    QwtPlot *myPlot3;
    QwtPlot *myPlot4;
    QwtPlot *myPlot5;
    QwtPlot *myPlot6;

    QwtPlotCurve myCurve1;
    QwtPlotCurve myCurve2;
    QwtPlotCurve myCurve3;
    QwtPlotCurve myCurve4;
    QwtPlotCurve myCurve5;
    QwtPlotCurve myCurve6;

};
#endif // MYMAINWINDOW_H
---------.cpp------
#include "MyMainWindow.h"
#include <QGridLayout>
#include <QHBoxLayout>
#include <qwt_plot_curve.h>
#include "RunSimulation.h"
#include <vector>

using namespace std;
MyMainWindow::MyMainWindow(QWidget* parent) : QWidget(parent)
{
    QGridLayout* mainLayout = new QGridLayout();
    setLayout(mainLayout);

    myPlot1 = new QwtPlot();
    myPlot2 = new QwtPlot();
    myPlot3 = new QwtPlot();
    myPlot4 = new QwtPlot();
    myPlot5 = new QwtPlot();
    myPlot6 = new QwtPlot();

    myPlot1->setMinimumSize(200, 100);
    myPlot2->setMinimumSize(200, 100);
    myPlot3->setMinimumSize(200, 100);
    myPlot4->setMinimumSize(200, 100);
    myPlot5->setMinimumSize(200, 100);
    myPlot6->setMinimumSize(200, 100);

    QWidget* buttonWidget = new QWidget();
    QGridLayout* buttonLayout = new QGridLayout();

    BUTTONRun = new QPushButton("RUN");
    BUTTONQuit = new QPushButton("STOP");
    BUTTONAbout = new QPushButton("About");
    BUTTONContact = new QPushButton("Contact");

    buttonLayout->addWidget(BUTTONRun    ,0,0);
    buttonLayout->addWidget(BUTTONQuit   ,0,1);
    buttonLayout->addWidget(BUTTONAbout  ,1,0);
    buttonLayout->addWidget(BUTTONContact,1,1);

    buttonWidget->setLayout(buttonLayout);

    mainLayout->addWidget(myPlot1      ,0,0,1,1);
    mainLayout->addWidget(myPlot2      ,0,1,1,1);
    mainLayout->addWidget(myPlot3      ,0,2,1,1);
    mainLayout->addWidget(myPlot4      ,1,0,1,1);
    mainLayout->addWidget(myPlot5      ,1,1,1,1);
    mainLayout->addWidget(myPlot6      ,1,2,1,1);
    mainLayout->addWidget(buttonWidget ,0,3,1,1);

    myCurve1.attach(myPlot1);
    myCurve2.attach(myPlot2);
    myCurve3.attach(myPlot3);
    myCurve4.attach(myPlot4);
    myCurve5.attach(myPlot5);
    myCurve6.attach(myPlot6);

    QObject::connect(BUTTONQuit, SIGNAL(clicked()), qApp, SLOT(quit()));
    QObject::connect(BUTTONAbout, SIGNAL(clicked()), qApp, SLOT(aboutQt()));
    QObject::connect(BUTTONRun, SIGNAL(clicked()), qApp, SLOT(myRunSlot()));
}
void MyMainWindow::plotValuesFromFunction(vector<double>points)
{
    QVector<double> x(1);
    QVector<double> y(1);

    x.append( points[0] );
    y.append( points[1] );

    myCurve1.setSamples(x.data(),y.data(),x.size());
    myCurve2.setSamples(x.data(),y.data(),x.size());
    myCurve3.setSamples(x.data(),y.data(),x.size());
    myCurve4.setSamples(x.data(),y.data(),x.size());
    myCurve5.setSamples(x.data(),y.data(),x.size());
    myCurve6.setSamples(x.data(),y.data(),x.size());
    myPlot1->replot();
    myPlot2->replot();
    myPlot3->replot();
    myPlot4->replot();
    myPlot5->replot();
    myPlot6->replot();
    myPlot1->show();
    myPlot2->show();
    myPlot3->show();
    myPlot4->show();
    myPlot5->show();
    myPlot6->show();
}
void MyMainWindow::myRunSlot()
{
    RunSimulation(this);
}

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RunSimulation

Qt Code:

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--.h--------
#ifndef RUNSIMULATION_H
#define RUNSIMULATION_H
void RunSimulation();
#endif // RUNSIMULATION_H
-.cpp-------
#include <QApplication>
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <vector>
#include "function.h"
#include "RunSimulation.h"
#include "MyMainWindow.h"
 
using namespace std;
void RunSimulation( MyMainWindow * mainWindow )
{
    vector<double> points;
    for (int i=1;i<10;i++)
    {
    points.clear();
    points=function();
    mainWindow->plotValuesFromFunction(points);
    //!! for each "i" i want to send result to the 6plots... but i don't know how...?
    }
}

--.h--------
#ifndef RUNSIMULATION_H
#define RUNSIMULATION_H
void RunSimulation();
#endif // RUNSIMULATION_H
-.cpp-------
#include <QApplication>
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <vector>
#include "function.h"
#include "RunSimulation.h"
#include "MyMainWindow.h"

using namespace std;
void RunSimulation( MyMainWindow * mainWindow )
{
    vector<double> points;
    for (int i=1;i<10;i++)
    {
    points.clear();
    points=function();
    mainWindow->plotValuesFromFunction(points);
    //!! for each "i" i want to send result to the 6plots... but i don't know how...?
    }
}

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function

Qt Code:

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--.h-------
#ifndef FUNCTION_HPP
#define FUNCTION_HPP
std::vector<double>  function();
#endif // FUNCTION_HPP
--.cpp-----
#include <vector>
#include <ctime> // to generate random point
#include <cstdlib> // to generate random point
#include "function.h"
#include "windows.h"
using namespace std;
vector<double>  function()
{
    vector<double> points;
    srand(time(0));
    points.clear();
    Sleep(1);
    points.push_back(rand() % 1800);
    points.push_back(rand() % 500);
    return points;
}

--.h-------
#ifndef FUNCTION_HPP
#define FUNCTION_HPP
std::vector<double>  function();
#endif // FUNCTION_HPP
--.cpp-----
#include <vector>
#include <ctime> // to generate random point
#include <cstdlib> // to generate random point
#include "function.h"
#include "windows.h"
using namespace std;
vector<double>  function()
{
    vector<double> points;
    srand(time(0));
    points.clear();
    Sleep(1);
    points.push_back(rand() % 1800);
    points.push_back(rand() % 500);
    return points;
}

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**stampede** · 6th June 2011, 09:05

What do you mean by "don't work" ?

**21did21** · 6th June 2011, 10:27

thank you for your help

Originally Posted by stampede

What do you mean by "don't work" ?

yes, excuse me.
when i compile my programm the GUI appear but when i click on the "run button" the points don't appear on the chart

**stampede** · 6th June 2011, 10:31

Is the slot method called ? Add some debugging messages to know what's going on during execution.

**21did21** · 6th June 2011, 12:52

Originally Posted by stampede

Is the slot method called ? Add some debugging messages to know what's going on during execution.

i don't know if the slot method is called.

I don't know how i can show message during execution because "cout" don't work because i am not in a console projet...

can you explain me how i can do this

**stampede** · 6th June 2011, 13:05

If you are using windows, add CONFIG += console to project's .pro file, then you can output to stdout any message using qDebug()
I think it will work without the extra CONFIG if you run your app with gdb, qDebug() output should be visible in debugger message window

**21did21** · 6th June 2011, 16:28

thank you,i haven't compilation's problem but where the console appear?

during debug i have this error (remark: exempleForum is the name of my project):
Object::connect: No such slot QApplication::myRunSlot() in ..\2exempleForum\MyMainWindow.cpp:61
Object::connect: (receiver name: 'exempleForum')
main

with this code i just change the prototype of the function :

main.cpp

Qt Code:

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#include <QApplication>
#include "MyMainWindow.h"
#include <QGridLayout>
#include "RunSimulation.h"
#include <QtDebug>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MyMainWindow fenetre;
    qDebug()<<"main ";
    fenetre.show();
    return app.exec();
}

#include <QApplication>
#include "MyMainWindow.h"
#include <QGridLayout>
#include "RunSimulation.h"
#include <QtDebug>
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MyMainWindow fenetre;
    qDebug()<<"main ";
    fenetre.show();
    return app.exec();
}

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MyMainWindows

Qt Code:

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-------------h--------------------
#ifndef MYMAINWINDOW_H
#define MYMAINWINDOW_H
#include <QApplication>
#include <QWidget>
#include <QPushButton>
#include <QMessageBox>
#include <qwt_plot_curve.h>
#include <qwt_plot.h>
class MyMainWindow : public QWidget
{
    Q_OBJECT
public:
    explicit MyMainWindow(QWidget* parent = 0);
    void myRunSlot();
    void plotValuesFromFunction(std::vector<double>);
private:
    QPushButton *BUTTONRun;
    QPushButton *BUTTONQuit;
    QPushButton *BUTTONAbout;
    QPushButton *BUTTONContact;
    QwtPlot *myPlot1;
    QwtPlot *myPlot2;
    QwtPlot *myPlot3;
    QwtPlot *myPlot4;
    QwtPlot *myPlot5;
    QwtPlot *myPlot6;
    QwtPlotCurve myCurve1;
    QwtPlotCurve myCurve2;
    QwtPlotCurve myCurve3;
    QwtPlotCurve myCurve4;
    QwtPlotCurve myCurve5;
    QwtPlotCurve myCurve6;
};
#endif // MYMAINWINDOW_H
-------------cpp----------------
#include "MyMainWindow.h"
#include <QGridLayout>
#include <QHBoxLayout>
#include <qwt_plot_curve.h>
#include "RunSimulation.h"
#include <vector>
#include <QtDebug>
using namespace std;
MyMainWindow::MyMainWindow(QWidget* parent) : QWidget(parent)
{
    QGridLayout* mainLayout = new QGridLayout();
    setLayout(mainLayout);
    myPlot1 = new QwtPlot();
    myPlot2 = new QwtPlot();
    myPlot3 = new QwtPlot();
    myPlot4 = new QwtPlot();
    myPlot5 = new QwtPlot();
    myPlot6 = new QwtPlot();
    myPlot1->setMinimumSize(200, 100);
    myPlot2->setMinimumSize(200, 100);
    myPlot3->setMinimumSize(200, 100);
    myPlot4->setMinimumSize(200, 100);
    myPlot5->setMinimumSize(200, 100);
    myPlot6->setMinimumSize(200, 100);
    QWidget* buttonWidget = new QWidget();
    QGridLayout* buttonLayout = new QGridLayout();
    BUTTONRun = new QPushButton("RUN");
    BUTTONQuit = new QPushButton("STOP");
    BUTTONAbout = new QPushButton("About");
    BUTTONContact = new QPushButton("Contact");
    buttonLayout->addWidget(BUTTONRun    ,0,0);
    buttonLayout->addWidget(BUTTONQuit   ,0,1);
    buttonLayout->addWidget(BUTTONAbout  ,1,0);
    buttonLayout->addWidget(BUTTONContact,1,1);
    buttonWidget->setLayout(buttonLayout);
    mainLayout->addWidget(myPlot1      ,0,0,1,1);
    mainLayout->addWidget(myPlot2      ,0,1,1,1);
    mainLayout->addWidget(myPlot3      ,0,2,1,1);
    mainLayout->addWidget(myPlot4      ,1,0,1,1);
    mainLayout->addWidget(myPlot5      ,1,1,1,1);
    mainLayout->addWidget(myPlot6      ,1,2,1,1);
    mainLayout->addWidget(buttonWidget ,0,3,1,1);
    myCurve1.attach(myPlot1);
    myCurve2.attach(myPlot2);
    myCurve3.attach(myPlot3);
    myCurve4.attach(myPlot4);
    myCurve5.attach(myPlot5);
    myCurve6.attach(myPlot6);
    QObject::connect(BUTTONQuit, SIGNAL(clicked()), qApp, SLOT(quit()));
    QObject::connect(BUTTONAbout, SIGNAL(clicked()), qApp, SLOT(aboutQt()));
    QObject::connect(BUTTONRun, SIGNAL(clicked()), qApp, SLOT(myRunSlot()));
}
void MyMainWindow::plotValuesFromFunction(vector<double>points)
{
    QVector<double> x(1);
    QVector<double> y(1);
    x.append( points[0] );
    y.append( points[1] );
    myCurve1.setSamples(x.data(),y.data(),x.size());
    myCurve2.setSamples(x.data(),y.data(),x.size());
    myCurve3.setSamples(x.data(),y.data(),x.size());
    myCurve4.setSamples(x.data(),y.data(),x.size());
    myCurve5.setSamples(x.data(),y.data(),x.size());
    myCurve6.setSamples(x.data(),y.data(),x.size());
    myPlot1->replot();
    myPlot2->replot();
    myPlot3->replot();
    myPlot4->replot();
    myPlot5->replot();
    myPlot6->replot();
    myPlot1->show();
    myPlot2->show();
    myPlot3->show();
    myPlot4->show();
    myPlot5->show();
    myPlot6->show();
}
void MyMainWindow::myRunSlot()
{
    qDebug()<<"method my run slot ";
    RunSimulation(this);
}

-------------h--------------------
#ifndef MYMAINWINDOW_H
#define MYMAINWINDOW_H
#include <QApplication>
#include <QWidget>
#include <QPushButton>
#include <QMessageBox>
#include <qwt_plot_curve.h>
#include <qwt_plot.h>
class MyMainWindow : public QWidget
{
    Q_OBJECT
public:
    explicit MyMainWindow(QWidget* parent = 0);
    void myRunSlot();
    void plotValuesFromFunction(std::vector<double>);
private:
    QPushButton *BUTTONRun;
    QPushButton *BUTTONQuit;
    QPushButton *BUTTONAbout;
    QPushButton *BUTTONContact;
    QwtPlot *myPlot1;
    QwtPlot *myPlot2;
    QwtPlot *myPlot3;
    QwtPlot *myPlot4;
    QwtPlot *myPlot5;
    QwtPlot *myPlot6;
    QwtPlotCurve myCurve1;
    QwtPlotCurve myCurve2;
    QwtPlotCurve myCurve3;
    QwtPlotCurve myCurve4;
    QwtPlotCurve myCurve5;
    QwtPlotCurve myCurve6;
};
#endif // MYMAINWINDOW_H
-------------cpp----------------
#include "MyMainWindow.h"
#include <QGridLayout>
#include <QHBoxLayout>
#include <qwt_plot_curve.h>
#include "RunSimulation.h"
#include <vector>
#include <QtDebug>
using namespace std;
MyMainWindow::MyMainWindow(QWidget* parent) : QWidget(parent)
{
    QGridLayout* mainLayout = new QGridLayout();
    setLayout(mainLayout);
    myPlot1 = new QwtPlot();
    myPlot2 = new QwtPlot();
    myPlot3 = new QwtPlot();
    myPlot4 = new QwtPlot();
    myPlot5 = new QwtPlot();
    myPlot6 = new QwtPlot();
    myPlot1->setMinimumSize(200, 100);
    myPlot2->setMinimumSize(200, 100);
    myPlot3->setMinimumSize(200, 100);
    myPlot4->setMinimumSize(200, 100);
    myPlot5->setMinimumSize(200, 100);
    myPlot6->setMinimumSize(200, 100);
    QWidget* buttonWidget = new QWidget();
    QGridLayout* buttonLayout = new QGridLayout();
    BUTTONRun = new QPushButton("RUN");
    BUTTONQuit = new QPushButton("STOP");
    BUTTONAbout = new QPushButton("About");
    BUTTONContact = new QPushButton("Contact");
    buttonLayout->addWidget(BUTTONRun    ,0,0);
    buttonLayout->addWidget(BUTTONQuit   ,0,1);
    buttonLayout->addWidget(BUTTONAbout  ,1,0);
    buttonLayout->addWidget(BUTTONContact,1,1);
    buttonWidget->setLayout(buttonLayout);
    mainLayout->addWidget(myPlot1      ,0,0,1,1);
    mainLayout->addWidget(myPlot2      ,0,1,1,1);
    mainLayout->addWidget(myPlot3      ,0,2,1,1);
    mainLayout->addWidget(myPlot4      ,1,0,1,1);
    mainLayout->addWidget(myPlot5      ,1,1,1,1);
    mainLayout->addWidget(myPlot6      ,1,2,1,1);
    mainLayout->addWidget(buttonWidget ,0,3,1,1);
    myCurve1.attach(myPlot1);
    myCurve2.attach(myPlot2);
    myCurve3.attach(myPlot3);
    myCurve4.attach(myPlot4);
    myCurve5.attach(myPlot5);
    myCurve6.attach(myPlot6);
    QObject::connect(BUTTONQuit, SIGNAL(clicked()), qApp, SLOT(quit()));
    QObject::connect(BUTTONAbout, SIGNAL(clicked()), qApp, SLOT(aboutQt()));
    QObject::connect(BUTTONRun, SIGNAL(clicked()), qApp, SLOT(myRunSlot()));
}
void MyMainWindow::plotValuesFromFunction(vector<double>points)
{
    QVector<double> x(1);
    QVector<double> y(1);
    x.append( points[0] );
    y.append( points[1] );
    myCurve1.setSamples(x.data(),y.data(),x.size());
    myCurve2.setSamples(x.data(),y.data(),x.size());
    myCurve3.setSamples(x.data(),y.data(),x.size());
    myCurve4.setSamples(x.data(),y.data(),x.size());
    myCurve5.setSamples(x.data(),y.data(),x.size());
    myCurve6.setSamples(x.data(),y.data(),x.size());
    myPlot1->replot();
    myPlot2->replot();
    myPlot3->replot();
    myPlot4->replot();
    myPlot5->replot();
    myPlot6->replot();
    myPlot1->show();
    myPlot2->show();
    myPlot3->show();
    myPlot4->show();
    myPlot5->show();
    myPlot6->show();
}
void MyMainWindow::myRunSlot()
{
    qDebug()<<"method my run slot ";
    RunSimulation(this);
}

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runSimulation

Qt Code:

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---------------h-----------------
#ifndef RUNSIMULATION_H
#define RUNSIMULATION_H
#include "MyMainWindow.h"
void RunSimulation( MyMainWindow *fenetre );
#endif // RUNSIMULATION_H
---------------cpp---------------
#include <QApplication>
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <vector>
#include "function.h"
#include "RunSimulation.h"
#include "MyMainWindow.h"
#include <QtDebug>
using namespace std;
void RunSimulation( MyMainWindow *fenetre )
{
    qDebug()<<"run simlation ";
    vector<double> points;
    for (int i=1;i<10;i++)
    {
    points.clear();
    points=function();
    fenetre->plotValuesFromFunction(points);
    //!! for each "i" i want to send result to the 6plots... but i don't know how...?
    }
}

---------------h-----------------
#ifndef RUNSIMULATION_H
#define RUNSIMULATION_H
#include "MyMainWindow.h"
void RunSimulation( MyMainWindow *fenetre );
#endif // RUNSIMULATION_H
---------------cpp---------------
#include <QApplication>
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <vector>
#include "function.h"
#include "RunSimulation.h"
#include "MyMainWindow.h"
#include <QtDebug>
using namespace std;
void RunSimulation( MyMainWindow *fenetre )
{
    qDebug()<<"run simlation ";
    vector<double> points;
    for (int i=1;i<10;i++)
    {
    points.clear();
    points=function();
    fenetre->plotValuesFromFunction(points);
    //!! for each "i" i want to send result to the 6plots... but i don't know how...?
    }
}

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function

Qt Code:

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-------------------h-------------
#ifndef FUNCTION_HPP
#define FUNCTION_HPP
std::vector<double>  function();
#endif // FUNCTION_HPP
------------cpp-----------------
#include <vector>
#include <ctime> // to generate random point
#include <cstdlib> // to generate random point
#include "function.h"
#include "windows.h"
#include <QtDebug>
using namespace std;
vector<double>  function()
{
    qDebug()<<"function ";
    vector<double> points;
    srand(time(0));
    points.clear();
    //Sleep(1);
    points.push_back(rand() % 1800);
    points.push_back(rand() % 500);
    return points;
}

-------------------h-------------
#ifndef FUNCTION_HPP
#define FUNCTION_HPP
std::vector<double>  function();
#endif // FUNCTION_HPP
------------cpp-----------------
#include <vector>
#include <ctime> // to generate random point
#include <cstdlib> // to generate random point
#include "function.h"
#include "windows.h"
#include <QtDebug>
using namespace std;
vector<double>  function()
{
    qDebug()<<"function ";
    vector<double> points;
    srand(time(0));
    points.clear();
    //Sleep(1);
    points.push_back(rand() % 1800);
    points.push_back(rand() % 500);
    return points;
}

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**Troudhyl** · 6th June 2011, 20:10

QObject::connect(BUTTONRun, SIGNAL(clicked()), qApp, SLOT(myRunSlot()));
qApp (QApplication instance) doesn't have a myRunSlot() slot. "this" has one.

QObject::connect(a, SIGNAL(a()), this, SLOT(b())); = connect(a, SIGNAL(a()), SLOT(b()));

**21did21** · 7th June 2011, 22:00

i have replace this:
QObject::connect(BUTTONRun, SIGNAL(clicked()), qApp, SLOT(myRunSlot()));

by:

QObject::connect(BUTTONRun, SIGNAL(clicked()), this, SLOT(myRunSlot()));

now i haven't error but it still don't works...

**FelixB** · 8th June 2011, 07:53

you have to declare "myRunSlot()" as slot:

Qt Code:

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public slots:
  void myRunSlot();

public slots:
  void myRunSlot();

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**21did21** · 8th June 2011, 08:56

yes it's a mistake! thanks a lot!!! it resolve a problem

but one problem continue:
=> my curve appear just at the end, the point are not ploting during execution

Thread: How i can plot result in my GUI ?

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