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<td >Qt 5.9</td><td ><a href="qtcharts-index.html">Qt Charts</a></td><td ><a href="qtcharts-polarchart-example.html">Polar Chart Example</a></td><td >main.cpp Example File</td></tr></table><table class="buildversion"><tr>
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<h1 class="title">main.cpp Example File</h1>
<span class="subtitle">polarchart/main.cpp</span>
<!-- $$$polarchart/main.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 <QtWidgets/QApplication></span>
<span class="preprocessor">#include <QtWidgets/QMainWindow></span>
<span class="preprocessor">#include <QtCharts/QScatterSeries></span>
<span class="preprocessor">#include <QtCharts/QLineSeries></span>
<span class="preprocessor">#include <QtCharts/QSplineSeries></span>
<span class="preprocessor">#include <QtCharts/QAreaSeries></span>
<span class="preprocessor">#include <QtCharts/QValueAxis></span>
<span class="preprocessor">#include <QtCharts/QPolarChart></span>
<span class="preprocessor">#include <QtCore/QDebug></span>
QT_CHARTS_USE_NAMESPACE
<span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span>argv<span class="operator">[</span><span class="operator">]</span>)
{
<span class="type">QApplication</span> a(argc<span class="operator">,</span> argv);
<span class="keyword">const</span> <span class="type">qreal</span> angularMin <span class="operator">=</span> <span class="operator">-</span><span class="number">100</span>;
<span class="keyword">const</span> <span class="type">qreal</span> angularMax <span class="operator">=</span> <span class="number">100</span>;
<span class="keyword">const</span> <span class="type">qreal</span> radialMin <span class="operator">=</span> <span class="operator">-</span><span class="number">100</span>;
<span class="keyword">const</span> <span class="type">qreal</span> radialMax <span class="operator">=</span> <span class="number">100</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">"scatter"</span>);
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> angularMin; i <span class="operator"><</span><span class="operator">=</span> angularMax; i <span class="operator">+</span><span class="operator">=</span> <span class="number">10</span>)
series1<span class="operator">-</span><span class="operator">></span>append(i<span class="operator">,</span> (i <span class="operator">/</span> radialMax) <span class="operator">*</span> radialMax <span class="operator">+</span> <span class="number">8.0</span>);
<span class="type"><a href="qsplineseries.html">QSplineSeries</a></span> <span class="operator">*</span>series2 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qsplineseries.html">QSplineSeries</a></span>();
series2<span class="operator">-</span><span class="operator">></span>setName(<span class="string">"spline"</span>);
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> angularMin; i <span class="operator"><</span><span class="operator">=</span> angularMax; i <span class="operator">+</span><span class="operator">=</span> <span class="number">10</span>)
series2<span class="operator">-</span><span class="operator">></span>append(i<span class="operator">,</span> (i <span class="operator">/</span> radialMax) <span class="operator">*</span> radialMax);
<span class="type"><a href="qlineseries.html">QLineSeries</a></span> <span class="operator">*</span>series3 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineseries.html">QLineSeries</a></span>();
series3<span class="operator">-</span><span class="operator">></span>setName(<span class="string">"star outer"</span>);
<span class="type">qreal</span> ad <span class="operator">=</span> (angularMax <span class="operator">-</span> angularMin) <span class="operator">/</span> <span class="number">8</span>;
<span class="type">qreal</span> rd <span class="operator">=</span> (radialMax <span class="operator">-</span> radialMin) <span class="operator">/</span> <span class="number">3</span> <span class="operator">*</span> <span class="number">1.3</span>;
series3<span class="operator">-</span><span class="operator">></span>append(angularMin<span class="operator">,</span> radialMax);
series3<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">1</span><span class="operator">,</span> radialMin <span class="operator">+</span> rd);
series3<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">2</span><span class="operator">,</span> radialMax);
series3<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">3</span><span class="operator">,</span> radialMin <span class="operator">+</span> rd);
series3<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">4</span><span class="operator">,</span> radialMax);
series3<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">5</span><span class="operator">,</span> radialMin <span class="operator">+</span> rd);
series3<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">6</span><span class="operator">,</span> radialMax);
series3<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">7</span><span class="operator">,</span> radialMin <span class="operator">+</span> rd);
series3<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">8</span><span class="operator">,</span> radialMax);
<span class="type"><a href="qlineseries.html">QLineSeries</a></span> <span class="operator">*</span>series4 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlineseries.html">QLineSeries</a></span>();
series4<span class="operator">-</span><span class="operator">></span>setName(<span class="string">"star inner"</span>);
ad <span class="operator">=</span> (angularMax <span class="operator">-</span> angularMin) <span class="operator">/</span> <span class="number">8</span>;
rd <span class="operator">=</span> (radialMax <span class="operator">-</span> radialMin) <span class="operator">/</span> <span class="number">3</span>;
series4<span class="operator">-</span><span class="operator">></span>append(angularMin<span class="operator">,</span> radialMax);
series4<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">1</span><span class="operator">,</span> radialMin <span class="operator">+</span> rd);
series4<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">2</span><span class="operator">,</span> radialMax);
series4<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">3</span><span class="operator">,</span> radialMin <span class="operator">+</span> rd);
series4<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">4</span><span class="operator">,</span> radialMax);
series4<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">5</span><span class="operator">,</span> radialMin <span class="operator">+</span> rd);
series4<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">6</span><span class="operator">,</span> radialMax);
series4<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">7</span><span class="operator">,</span> radialMin <span class="operator">+</span> rd);
series4<span class="operator">-</span><span class="operator">></span>append(angularMin <span class="operator">+</span> ad<span class="operator">*</span><span class="number">8</span><span class="operator">,</span> radialMax);
<span class="type"><a href="qareaseries.html">QAreaSeries</a></span> <span class="operator">*</span>series5 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qareaseries.html">QAreaSeries</a></span>();
series5<span class="operator">-</span><span class="operator">></span>setName(<span class="string">"star area"</span>);
series5<span class="operator">-</span><span class="operator">></span>setUpperSeries(series3);
series5<span class="operator">-</span><span class="operator">></span>setLowerSeries(series4);
series5<span class="operator">-</span><span class="operator">></span>setOpacity(<span class="number">0.5</span>);
<span class="type"><a href="qpolarchart.html">QPolarChart</a></span> <span class="operator">*</span>chart <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpolarchart.html">QPolarChart</a></span>();
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>addSeries(series3);
chart<span class="operator">-</span><span class="operator">></span>addSeries(series4);
chart<span class="operator">-</span><span class="operator">></span>addSeries(series5);
chart<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Use arrow keys to scroll, +/- to zoom, and space to switch chart type."</span>);
<span class="type"><a href="qvalueaxis.html">QValueAxis</a></span> <span class="operator">*</span>angularAxis <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvalueaxis.html">QValueAxis</a></span>();
angularAxis<span class="operator">-</span><span class="operator">></span>setTickCount(<span class="number">9</span>); <span class="comment">// First and last ticks are co-located on 0/360 angle.</span>
angularAxis<span class="operator">-</span><span class="operator">></span>setLabelFormat(<span class="string">"%.1f"</span>);
angularAxis<span class="operator">-</span><span class="operator">></span>setShadesVisible(<span class="keyword">true</span>);
angularAxis<span class="operator">-</span><span class="operator">></span>setShadesBrush(<span class="type">QBrush</span>(<span class="type">QColor</span>(<span class="number">249</span><span class="operator">,</span> <span class="number">249</span><span class="operator">,</span> <span class="number">255</span>)));
chart<span class="operator">-</span><span class="operator">></span>addAxis(angularAxis<span class="operator">,</span> <span class="type"><a href="qpolarchart.html">QPolarChart</a></span><span class="operator">::</span>PolarOrientationAngular);
<span class="type"><a href="qvalueaxis.html">QValueAxis</a></span> <span class="operator">*</span>radialAxis <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvalueaxis.html">QValueAxis</a></span>();
radialAxis<span class="operator">-</span><span class="operator">></span>setTickCount(<span class="number">9</span>);
radialAxis<span class="operator">-</span><span class="operator">></span>setLabelFormat(<span class="string">"%d"</span>);
chart<span class="operator">-</span><span class="operator">></span>addAxis(radialAxis<span class="operator">,</span> <span class="type"><a href="qpolarchart.html">QPolarChart</a></span><span class="operator">::</span>PolarOrientationRadial);
series1<span class="operator">-</span><span class="operator">></span>attachAxis(radialAxis);
series1<span class="operator">-</span><span class="operator">></span>attachAxis(angularAxis);
series2<span class="operator">-</span><span class="operator">></span>attachAxis(radialAxis);
series2<span class="operator">-</span><span class="operator">></span>attachAxis(angularAxis);
series3<span class="operator">-</span><span class="operator">></span>attachAxis(radialAxis);
series3<span class="operator">-</span><span class="operator">></span>attachAxis(angularAxis);
series4<span class="operator">-</span><span class="operator">></span>attachAxis(radialAxis);
series4<span class="operator">-</span><span class="operator">></span>attachAxis(angularAxis);
series5<span class="operator">-</span><span class="operator">></span>attachAxis(radialAxis);
series5<span class="operator">-</span><span class="operator">></span>attachAxis(angularAxis);
radialAxis<span class="operator">-</span><span class="operator">></span>setRange(radialMin<span class="operator">,</span> radialMax);
angularAxis<span class="operator">-</span><span class="operator">></span>setRange(angularMin<span class="operator">,</span> angularMax);
ChartView <span class="operator">*</span>chartView <span class="operator">=</span> <span class="keyword">new</span> ChartView();
chartView<span class="operator">-</span><span class="operator">></span>setChart(chart);
chartView<span class="operator">-</span><span class="operator">></span>setRenderHint(<span class="type">QPainter</span><span class="operator">::</span>Antialiasing);
<span class="type">QMainWindow</span> window;
window<span class="operator">.</span>setCentralWidget(chartView);
window<span class="operator">.</span>resize(<span class="number">800</span><span class="operator">,</span> <span class="number">600</span>);
window<span class="operator">.</span>show();
<span class="keyword">return</span> a<span class="operator">.</span>exec();
}
</pre>
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<!-- @@@polarchart/main.cpp -->
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<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
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distrib
>
Mageia
>
6
>
x86_64
>
media
>
core-updates
>
by-pkgid
>
19952c5e751bf7e3108c3c59625b0f35
>
files
>
400
