main.cpp
55 lines
| 1.4 KiB
| text/x-c
|
CppLexer
Michal Klocek
|
r69 | #include <QApplication> | ||
#include <QMainWindow> | ||||
#include <qchartview.h> | ||||
Michal Klocek
|
r349 | #include <qlineseries.h> | ||
Michal Klocek
|
r69 | #include <qchart.h> | ||
#include <cmath> | ||||
QTCOMMERCIALCHART_USE_NAMESPACE | ||||
#define PI 3.14159265358979 | ||||
int main(int argc, char *argv[]) | ||||
{ | ||||
QApplication a(argc, argv); | ||||
QMainWindow window; | ||||
Michal Klocek
|
r349 | QLineSeries* series0 = new QLineSeries(); | ||
Michal Klocek
|
r85 | QPen blue(Qt::blue); | ||
blue.setWidth(3); | ||||
series0->setPen(blue); | ||||
Michal Klocek
|
r349 | QLineSeries* series1 = new QLineSeries(); | ||
Michal Klocek
|
r85 | QPen red(Qt::red); | ||
red.setWidth(3); | ||||
series1->setPen(red); | ||||
Michal Klocek
|
r69 | |||
int numPoints = 100; | ||||
for (int x = 0; x <= numPoints; ++x) { | ||||
Michal Klocek
|
r131 | series0->add(x, fabs(sin(PI/50*x)*100)); | ||
series1->add(x, fabs(cos(PI/50*x)*100)); | ||||
Michal Klocek
|
r69 | } | ||
QChartView* chartView = new QChartView(&window); | ||||
Michal Klocek
|
r86 | chartView->setRenderHint(QPainter::Antialiasing); | ||
Michal Klocek
|
r192 | |||
QFont font; | ||||
font.setPixelSize(18); | ||||
chartView->setChartTitleFont(font); | ||||
chartView->setChartTitle("Custom color line chart example"); | ||||
Michal Klocek
|
r69 | chartView->addSeries(series0); | ||
chartView->addSeries(series1); | ||||
Michal Klocek
|
r122 | |||
QLinearGradient backgroundGradient; | ||||
backgroundGradient.setColorAt(0.0, Qt::blue); | ||||
backgroundGradient.setColorAt(1.0, Qt::yellow); | ||||
backgroundGradient.setCoordinateMode(QGradient::ObjectBoundingMode); | ||||
chartView->setChartBackgroundBrush(backgroundGradient); | ||||
Michal Klocek
|
r69 | |||
window.setCentralWidget(chartView); | ||||
window.resize(400, 300); | ||||
window.show(); | ||||
return a.exec(); | ||||
} | ||||