main.cpp
146 lines
| 5.3 KiB
| text/x-c
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CppLexer
winter
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r0 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2016 The Qt Company Ltd. | ||||
** Contact: https://www.qt.io/licensing/ | ||||
** | ||||
** This file is part of the Qt Charts module of the Qt Toolkit. | ||||
** | ||||
** $QT_BEGIN_LICENSE:GPL$ | ||||
** Commercial License Usage | ||||
** Licensees holding valid commercial Qt licenses may use this file in | ||||
** accordance with the commercial license agreement provided with the | ||||
** Software or, alternatively, in accordance with the terms contained in | ||||
** a written agreement between you and The Qt Company. For licensing terms | ||||
** and conditions see https://www.qt.io/terms-conditions. For further | ||||
** information use the contact form at https://www.qt.io/contact-us. | ||||
** | ||||
** GNU General Public License Usage | ||||
** Alternatively, this file may be used under the terms of the GNU | ||||
** General Public License version 3 or (at your option) any later version | ||||
** approved by the KDE Free Qt Foundation. The licenses are as published by | ||||
** the Free Software Foundation and appearing in the file LICENSE.GPL3 | ||||
** included in the packaging of this file. Please review the following | ||||
** information to ensure the GNU General Public License requirements will | ||||
** be met: https://www.gnu.org/licenses/gpl-3.0.html. | ||||
** | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
#include "chartview.h" | ||||
#include <QtWidgets/QApplication> | ||||
#include <QtWidgets/QMainWindow> | ||||
#include <QtCharts/QScatterSeries> | ||||
#include <QtCharts/QLineSeries> | ||||
#include <QtCharts/QSplineSeries> | ||||
#include <QtCharts/QAreaSeries> | ||||
#include <QtCharts/QValueAxis> | ||||
#include <QtCharts/QPolarChart> | ||||
#include <QtCore/QDebug> | ||||
QT_CHARTS_USE_NAMESPACE | ||||
int main(int argc, char *argv[]) | ||||
{ | ||||
QApplication a(argc, argv); | ||||
const qreal angularMin = -100; | ||||
const qreal angularMax = 100; | ||||
const qreal radialMin = -100; | ||||
const qreal radialMax = 100; | ||||
QScatterSeries *series1 = new QScatterSeries(); | ||||
series1->setName("scatter"); | ||||
for (int i = angularMin; i <= angularMax; i += 10) | ||||
series1->append(i, (i / radialMax) * radialMax + 8.0); | ||||
QSplineSeries *series2 = new QSplineSeries(); | ||||
series2->setName("spline"); | ||||
for (int i = angularMin; i <= angularMax; i += 10) | ||||
series2->append(i, (i / radialMax) * radialMax); | ||||
QLineSeries *series3 = new QLineSeries(); | ||||
series3->setName("star outer"); | ||||
qreal ad = (angularMax - angularMin) / 8; | ||||
qreal rd = (radialMax - radialMin) / 3 * 1.3; | ||||
series3->append(angularMin, radialMax); | ||||
series3->append(angularMin + ad*1, radialMin + rd); | ||||
series3->append(angularMin + ad*2, radialMax); | ||||
series3->append(angularMin + ad*3, radialMin + rd); | ||||
series3->append(angularMin + ad*4, radialMax); | ||||
series3->append(angularMin + ad*5, radialMin + rd); | ||||
series3->append(angularMin + ad*6, radialMax); | ||||
series3->append(angularMin + ad*7, radialMin + rd); | ||||
series3->append(angularMin + ad*8, radialMax); | ||||
QLineSeries *series4 = new QLineSeries(); | ||||
series4->setName("star inner"); | ||||
ad = (angularMax - angularMin) / 8; | ||||
rd = (radialMax - radialMin) / 3; | ||||
series4->append(angularMin, radialMax); | ||||
series4->append(angularMin + ad*1, radialMin + rd); | ||||
series4->append(angularMin + ad*2, radialMax); | ||||
series4->append(angularMin + ad*3, radialMin + rd); | ||||
series4->append(angularMin + ad*4, radialMax); | ||||
series4->append(angularMin + ad*5, radialMin + rd); | ||||
series4->append(angularMin + ad*6, radialMax); | ||||
series4->append(angularMin + ad*7, radialMin + rd); | ||||
series4->append(angularMin + ad*8, radialMax); | ||||
QAreaSeries *series5 = new QAreaSeries(); | ||||
series5->setName("star area"); | ||||
series5->setUpperSeries(series3); | ||||
series5->setLowerSeries(series4); | ||||
series5->setOpacity(0.5); | ||||
//![1] | ||||
QPolarChart *chart = new QPolarChart(); | ||||
//![1] | ||||
chart->addSeries(series1); | ||||
chart->addSeries(series2); | ||||
chart->addSeries(series3); | ||||
chart->addSeries(series4); | ||||
chart->addSeries(series5); | ||||
chart->setTitle("Use arrow keys to scroll, +/- to zoom, and space to switch chart type."); | ||||
//![2] | ||||
QValueAxis *angularAxis = new QValueAxis(); | ||||
angularAxis->setTickCount(9); // First and last ticks are co-located on 0/360 angle. | ||||
angularAxis->setLabelFormat("%.1f"); | ||||
angularAxis->setShadesVisible(true); | ||||
angularAxis->setShadesBrush(QBrush(QColor(249, 249, 255))); | ||||
chart->addAxis(angularAxis, QPolarChart::PolarOrientationAngular); | ||||
QValueAxis *radialAxis = new QValueAxis(); | ||||
radialAxis->setTickCount(9); | ||||
radialAxis->setLabelFormat("%d"); | ||||
chart->addAxis(radialAxis, QPolarChart::PolarOrientationRadial); | ||||
//![2] | ||||
series1->attachAxis(radialAxis); | ||||
series1->attachAxis(angularAxis); | ||||
series2->attachAxis(radialAxis); | ||||
series2->attachAxis(angularAxis); | ||||
series3->attachAxis(radialAxis); | ||||
series3->attachAxis(angularAxis); | ||||
series4->attachAxis(radialAxis); | ||||
series4->attachAxis(angularAxis); | ||||
series5->attachAxis(radialAxis); | ||||
series5->attachAxis(angularAxis); | ||||
radialAxis->setRange(radialMin, radialMax); | ||||
angularAxis->setRange(angularMin, angularMax); | ||||
ChartView *chartView = new ChartView(); | ||||
chartView->setChart(chart); | ||||
chartView->setRenderHint(QPainter::Antialiasing); | ||||
QMainWindow window; | ||||
window.setCentralWidget(chartView); | ||||
window.resize(800, 600); | ||||
window.show(); | ||||
return a.exec(); | ||||
} | ||||