<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>chartview.cpp Example File | Qt Charts 5.12.6</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtcharts-index.html">Qt Charts</a></td><td ><a href="qtcharts-scatterchart-example.html">ScatterChart Example</a></td><td >chartview.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtcharts-index.html">Qt Charts | Commercial or GPLv3</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">chartview.cpp Example File</h1> <span class="subtitle">scatterchart/chartview.cpp</span> <!-- $$$scatterchart/chartview.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** 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. ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#include "chartview.h"</span> <span class="preprocessor">#include <QtCharts/QScatterSeries></span> <span class="preprocessor">#include <QtCharts/QLegendMarker></span> <span class="preprocessor">#include <QtGui/QImage></span> <span class="preprocessor">#include <QtGui/QPainter></span> <span class="preprocessor">#include <QtCore/QtMath></span> ChartView<span class="operator">::</span>ChartView(<span class="type">QWidget</span> <span class="operator">*</span>parent) : <span class="type"><a href="qchartview.html">QChartView</a></span>(<span class="keyword">new</span> <span class="type"><a href="qchart.html">QChart</a></span>()<span class="operator">,</span> parent) { <span class="type"><a href="qscatterseries.html">QScatterSeries</a></span> <span class="operator">*</span>series0 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qscatterseries.html">QScatterSeries</a></span>(); series0<span class="operator">-</span><span class="operator">></span>setName(<span class="string">"scatter1"</span>); series0<span class="operator">-</span><span class="operator">></span>setMarkerShape(<span class="type"><a href="qscatterseries.html">QScatterSeries</a></span><span class="operator">::</span>MarkerShapeCircle); series0<span class="operator">-</span><span class="operator">></span>setMarkerSize(<span class="number">15.0</span>); <span class="type"><a href="qscatterseries.html">QScatterSeries</a></span> <span class="operator">*</span>series1 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qscatterseries.html">QScatterSeries</a></span>(); series1<span class="operator">-</span><span class="operator">></span>setName(<span class="string">"scatter2"</span>); series1<span class="operator">-</span><span class="operator">></span>setMarkerShape(<span class="type"><a href="qscatterseries.html">QScatterSeries</a></span><span class="operator">::</span>MarkerShapeRectangle); series1<span class="operator">-</span><span class="operator">></span>setMarkerSize(<span class="number">20.0</span>); <span class="type"><a href="qscatterseries.html">QScatterSeries</a></span> <span class="operator">*</span>series2 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qscatterseries.html">QScatterSeries</a></span>(); series2<span class="operator">-</span><span class="operator">></span>setName(<span class="string">"scatter3"</span>); series2<span class="operator">-</span><span class="operator">></span>setMarkerShape(<span class="type"><a href="qscatterseries.html">QScatterSeries</a></span><span class="operator">::</span>MarkerShapeRectangle); series2<span class="operator">-</span><span class="operator">></span>setMarkerSize(<span class="number">30.0</span>); series0<span class="operator">-</span><span class="operator">></span>append(<span class="number">0</span><span class="operator">,</span> <span class="number">6</span>); series0<span class="operator">-</span><span class="operator">></span>append(<span class="number">2</span><span class="operator">,</span> <span class="number">4</span>); series0<span class="operator">-</span><span class="operator">></span>append(<span class="number">3</span><span class="operator">,</span> <span class="number">8</span>); series0<span class="operator">-</span><span class="operator">></span>append(<span class="number">7</span><span class="operator">,</span> <span class="number">4</span>); series0<span class="operator">-</span><span class="operator">></span>append(<span class="number">10</span><span class="operator">,</span> <span class="number">5</span>); <span class="operator">*</span>series1 <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">1</span><span class="operator">,</span> <span class="number">1</span>) <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">3</span><span class="operator">,</span> <span class="number">3</span>) <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">7</span><span class="operator">,</span> <span class="number">6</span>) <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">8</span><span class="operator">,</span> <span class="number">3</span>) <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">10</span><span class="operator">,</span> <span class="number">2</span>); <span class="operator">*</span>series2 <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">1</span><span class="operator">,</span> <span class="number">5</span>) <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">4</span><span class="operator">,</span> <span class="number">6</span>) <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">6</span><span class="operator">,</span> <span class="number">3</span>) <span class="operator"><</span><span class="operator"><</span> <span class="type">QPointF</span>(<span class="number">9</span><span class="operator">,</span> <span class="number">5</span>); <span class="type">QPainterPath</span> starPath; starPath<span class="operator">.</span>moveTo(<span class="number">28</span><span class="operator">,</span> <span class="number">15</span>); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">1</span>; i <span class="operator"><</span> <span class="number">5</span>; <span class="operator">+</span><span class="operator">+</span>i) { starPath<span class="operator">.</span>lineTo(<span class="number">14</span> <span class="operator">+</span> <span class="number">14</span> <span class="operator">*</span> qCos(<span class="number">0.8</span> <span class="operator">*</span> i <span class="operator">*</span> M_PI)<span class="operator">,</span> <span class="number">15</span> <span class="operator">+</span> <span class="number">14</span> <span class="operator">*</span> qSin(<span class="number">0.8</span> <span class="operator">*</span> i <span class="operator">*</span> M_PI)); } starPath<span class="operator">.</span>closeSubpath(); <span class="type">QImage</span> star(<span class="number">30</span><span class="operator">,</span> <span class="number">30</span><span class="operator">,</span> <span class="type">QImage</span><span class="operator">::</span>Format_ARGB32); star<span class="operator">.</span>fill(<span class="type">Qt</span><span class="operator">::</span>transparent); <span class="type">QPainter</span> painter(<span class="operator">&</span>star); painter<span class="operator">.</span>setRenderHint(<span class="type">QPainter</span><span class="operator">::</span>Antialiasing); painter<span class="operator">.</span>setPen(<span class="type">QRgb</span>(<span class="number">0xf6a625</span>)); painter<span class="operator">.</span>setBrush(painter<span class="operator">.</span>pen()<span class="operator">.</span>color()); painter<span class="operator">.</span>drawPath(starPath); series2<span class="operator">-</span><span class="operator">></span>setBrush(star); series2<span class="operator">-</span><span class="operator">></span>setPen(<span class="type">QColor</span>(<span class="type">Qt</span><span class="operator">::</span>transparent)); setRenderHint(<span class="type">QPainter</span><span class="operator">::</span>Antialiasing); chart()<span class="operator">-</span><span class="operator">></span>addSeries(series0); chart()<span class="operator">-</span><span class="operator">></span>addSeries(series1); chart()<span class="operator">-</span><span class="operator">></span>addSeries(series2); chart()<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Simple scatterchart example"</span>); chart()<span class="operator">-</span><span class="operator">></span>createDefaultAxes(); chart()<span class="operator">-</span><span class="operator">></span>setDropShadowEnabled(<span class="keyword">false</span>); chart()<span class="operator">-</span><span class="operator">></span>legend()<span class="operator">-</span><span class="operator">></span>setMarkerShape(<span class="type"><a href="qlegend.html">QLegend</a></span><span class="operator">::</span>MarkerShapeFromSeries); } </pre> </div> <!-- @@@scatterchart/chartview.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>