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

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