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<td >Qt 5.9</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>
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<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>
<span class="keyword">const</span> <span class="type">float</span> Pi <span class="operator">=</span> <span class="number">3.14159f</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> 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> 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>
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<!-- @@@scatterchart/chartview.cpp -->
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<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
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distrib
>
Mageia
>
6
>
x86_64
>
media
>
core-updates
>
by-pkgid
>
19952c5e751bf7e3108c3c59625b0f35
>
files
>
472
