##// END OF EJS Templates
HG_REPOSITORIES » LPP » INSTRUMENTATION » USERS » JEANDET » qtcharts
RSS

Clone from http://code.qt.io/qt/qtcharts.git

minor. updates to line ekg exampels
Michal Klocek -
r705:46244239bbcc
parent child
Show More
Show file before | Show file after | Hide comments
@@ -1,58 +1,57
1 1 #include "chartview.h"
2 2 #include <QSplineSeries>
3 3 #include <QTime>
4 4
5 5 ChartView::ChartView(QWidget* parent):QChartView(parent),
6 6 m_step(1),
7 7 m_x(0),
8 8 m_y(1)
9 9 {
10 10 QTime now = QTime::currentTime();
11 11 qsrand((uint)now.msec());
12 12 setChartTitle("Three random line charts");
13 13
14 14 QObject::connect(&m_timer,SIGNAL(timeout()),this,SLOT(handleTimeout()));
15 m_timer.setInterval(3000);
15 m_timer.setInterval(1000);
16 16
17 17 m_series0 = new QLineSeries(this);
18 18 QPen blue(Qt::blue);
19 19 blue.setWidth(3);
20 20 m_series0->setPen(blue);
21 21
22 22
23 23 m_series1 = new QSplineSeries(this);
24 QPen green(Qt::green);
24 QPen green(Qt::red);
25 25 green.setWidth(3);
26 26 m_series1->setPen(green);
27 27
28
29 28 m_series0->add(m_x,m_y);
30 29 m_series1->add(m_x,m_y);
31 30
32 setChartTitle("Simple EKG example");
31 setChartTitle("Simple EKG chart");
33 32 addSeries(m_series0);
34 33 addSeries(m_series1);
35 34 axisY()->setRange(-5,5);
36 35 axisX()->setRange(-9,1);
37 36 axisX()->setTicksCount(11);
38 37 m_timer.start();
39 38 }
40 39
41 40 ChartView::~ChartView()
42 41 {
43 42
44 43 }
45 44
46 45 void ChartView::handleTimeout()
47 46 {
48 47 m_x+=m_step;
49 48 m_y = qrand() % 5 - 2.5;
50 49 m_series0->add(m_x,m_y);
51 50 m_series1->add(m_x,m_y);
52 51 if(m_x>=10)
53 52 {
54 53 m_series0->remove(m_x-10);
55 54 m_series1->remove(m_x-10);
56 55 }
57 56 scrollRight();
58 57 }
Show file before | Show file after | Hide comments
@@ -1,51 +1,51
1 1 #include <QApplication>
2 2 #include <QMainWindow>
3 3 #include <QChartView>
4 4 #include <QLineSeries>
5 5 #include <cmath>
6 6
7 7 QTCOMMERCIALCHART_USE_NAMESPACE
8 8
9 9 int main(int argc, char *argv[])
10 10 {
11 11 QApplication a(argc, argv);
12 12
13 13 //![1]
14 14 QLineSeries* series0 = new QLineSeries();
15 15 QPen blue(Qt::blue);
16 16 blue.setWidth(3);
17 17 series0->setPen(blue);
18 18
19 19 QLineSeries* series1 = new QLineSeries();
20 20 QPen red(Qt::red);
21 21 red.setWidth(3);
22 22 series1->setPen(red);
23 23 //![1]
24 24
25 25 //![2]
26 26 series0->add(0, 6);
27 27 series0->add(2, 4);
28 28 series0->add(3, 8);
29 29 series0->add(7, 4);
30 30 series0->add(10,5);
31 31
32 32 *series1 << QPointF(1, 1) << QPointF(3, 3) << QPointF(7, 6) << QPointF(8, 3) << QPointF(10,2);
33 33 //![2]
34 34 //![3]
35 35 QMainWindow window;
36 36 QChartView* chartView = new QChartView(&window);
37 37
38 chartView->setChartTitle("Basic line chart example");
38 chartView->setChartTitle("Simple line chart");
39 39 chartView->setRenderHint(QPainter::Antialiasing);
40 40
41 41 chartView->addSeries(series0);
42 42 chartView->addSeries(series1);
43 43 //![3]
44 44 //![4]
45 45 window.setCentralWidget(chartView);
46 46 window.resize(400, 300);
47 47 window.show();
48 48 //![4]
49 49
50 50 return a.exec();
51 51 }
General Comments 0
You need to be logged in to leave comments. Login now