Qt/QWT/Plot

main.cpp

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

form.h

#ifndef BUTTONFORM_H
#define BUTTONFORM_H
 
#include "ui_form.h"
 
class MyForm : public QWidget, private Ui::Form
{
  Q_OBJECT
 
public:
  MyForm(QWidget *parent = 0);
 
public slots:
 
};
 
#endif

form.cpp

#include "form.h"
 
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <qwt_series_data.h>
 
 
MyForm::MyForm(QWidget *parent) : QWidget(parent)
{
  setupUi(this);
 
  QwtPlot *myPlot = new QwtPlot(this);
 
  QwtPlotCurve *curve1 = new QwtPlotCurve("Curve 1");
 
 
  QwtPointSeriesData* myData = new QwtPointSeriesData;
 
  QVector<QPointF>* samples = new QVector<QPointF>;
  samples->push_back(QPointF(1.0,1.0));
  samples->push_back(QPointF(2.0,2.0));
  samples->push_back(QPointF(3.0,3.0));
  samples->push_back(QPointF(4.0,5.0));
  myData->setSamples(*samples);
  curve1->setData(myData);
 
  curve1->attach(myPlot);
 
  myPlot->replot();
}

form.ui

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>Form</class>
 <widget class="QWidget" name="Form">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>400</width>
    <height>300</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>My Program</string>
  </property>
 
 </widget>
 <resources/>
 <connections/>
</ui>

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)
 
PROJECT(QWT)
 
FIND_PACKAGE(Qt4 REQUIRED)
INCLUDE(${QT_USE_FILE})
 
QT4_WRAP_UI(UISrcs form.ui)
QT4_WRAP_CPP(MOCSrcs form.h)
 
include_directories(${include_directories} ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} /home/doriad/src/qwt-6.0/src)
link_directories(/home/doriad/src/qwt-6.0/lib)
 
ADD_EXECUTABLE(QWT main.cpp form.cpp ${MOCSrcs} ${UISrcs})
TARGET_LINK_LIBRARIES(QWT ${QT_LIBRARIES} qwt)