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<h1 class="title">scatterdatamodifier.cpp Example File</h1>
<span class="subtitle">custominput/scatterdatamodifier.cpp</span>
<!-- $$$custominput/scatterdatamodifier.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 Data Visualization 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 "scatterdatamodifier.h"</span>
<span class="preprocessor">#include <QtDataVisualization/QScatterDataProxy></span>
<span class="preprocessor">#include <QtDataVisualization/QValue3DAxis></span>
<span class="preprocessor">#include <QtDataVisualization/Q3DScene></span>
<span class="preprocessor">#include <QtDataVisualization/Q3DCamera></span>
<span class="preprocessor">#include <QtDataVisualization/QScatter3DSeries></span>
<span class="preprocessor">#include <QtDataVisualization/Q3DTheme></span>
<span class="preprocessor">#include <QtCore/qmath.h></span>
<span class="preprocessor">#include <QtCore/QTextStream></span>
<span class="preprocessor">#include <QtCore/QDebug></span>
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="type"><a href="qtdatavisualization-qmlmodule.html">QtDataVisualization</a></span>;
ScatterDataModifier<span class="operator">::</span>ScatterDataModifier(<span class="type"><a href="q3dscatter.html">Q3DScatter</a></span> <span class="operator">*</span>scatter)
: m_graph(scatter)<span class="operator">,</span>
m_inputHandler(<span class="keyword">new</span> CustomInputHandler())
{
m_graph<span class="operator">-</span><span class="operator">></span>activeTheme()<span class="operator">-</span><span class="operator">></span>setType(<span class="type"><a href="q3dtheme.html">Q3DTheme</a></span><span class="operator">::</span>ThemeDigia);
m_graph<span class="operator">-</span><span class="operator">></span>setShadowQuality(QAbstract3DGraph<span class="operator">::</span>ShadowQualityMedium);
m_graph<span class="operator">-</span><span class="operator">></span>scene()<span class="operator">-</span><span class="operator">></span>activeCamera()<span class="operator">-</span><span class="operator">></span>setCameraPreset(<span class="type"><a href="q3dcamera.html">Q3DCamera</a></span><span class="operator">::</span>CameraPresetFront);
m_graph<span class="operator">-</span><span class="operator">></span>setAxisX(<span class="keyword">new</span> QValue3DAxis);
m_graph<span class="operator">-</span><span class="operator">></span>setAxisY(<span class="keyword">new</span> QValue3DAxis);
m_graph<span class="operator">-</span><span class="operator">></span>setAxisZ(<span class="keyword">new</span> QValue3DAxis);
m_graph<span class="operator">-</span><span class="operator">></span>axisX()<span class="operator">-</span><span class="operator">></span>setRange(<span class="operator">-</span><span class="number">10.0f</span><span class="operator">,</span> <span class="number">10.0f</span>);
m_graph<span class="operator">-</span><span class="operator">></span>axisY()<span class="operator">-</span><span class="operator">></span>setRange(<span class="operator">-</span><span class="number">5.0f</span><span class="operator">,</span> <span class="number">5.0f</span>);
m_graph<span class="operator">-</span><span class="operator">></span>axisZ()<span class="operator">-</span><span class="operator">></span>setRange(<span class="operator">-</span><span class="number">5.0f</span><span class="operator">,</span> <span class="number">5.0f</span>);
QScatter3DSeries <span class="operator">*</span>series <span class="operator">=</span> <span class="keyword">new</span> QScatter3DSeries;
series<span class="operator">-</span><span class="operator">></span>setItemLabelFormat(<span class="type">QStringLiteral</span>(<span class="string">"@xLabel, @yLabel, @zLabel"</span>));
series<span class="operator">-</span><span class="operator">></span>setMesh(QAbstract3DSeries<span class="operator">::</span>MeshCube);
series<span class="operator">-</span><span class="operator">></span>setItemSize(<span class="number">0.15f</span>);
m_graph<span class="operator">-</span><span class="operator">></span>addSeries(series);
m_animationCameraX <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPropertyAnimation</span>(m_graph<span class="operator">-</span><span class="operator">></span>scene()<span class="operator">-</span><span class="operator">></span>activeCamera()<span class="operator">,</span> <span class="string">"xRotation"</span>);
m_animationCameraX<span class="operator">-</span><span class="operator">></span>setDuration(<span class="number">20000</span>);
m_animationCameraX<span class="operator">-</span><span class="operator">></span>setStartValue(<span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="number">0.0f</span>));
m_animationCameraX<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="number">360.0f</span>));
m_animationCameraX<span class="operator">-</span><span class="operator">></span>setLoopCount(<span class="operator">-</span><span class="number">1</span>);
<span class="type">QPropertyAnimation</span> <span class="operator">*</span>upAnimation <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPropertyAnimation</span>(m_graph<span class="operator">-</span><span class="operator">></span>scene()<span class="operator">-</span><span class="operator">></span>activeCamera()<span class="operator">,</span> <span class="string">"yRotation"</span>);
upAnimation<span class="operator">-</span><span class="operator">></span>setDuration(<span class="number">9000</span>);
upAnimation<span class="operator">-</span><span class="operator">></span>setStartValue(<span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="number">5.0f</span>));
upAnimation<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="number">45.0f</span>));
<span class="type">QPropertyAnimation</span> <span class="operator">*</span>downAnimation <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QPropertyAnimation</span>(m_graph<span class="operator">-</span><span class="operator">></span>scene()<span class="operator">-</span><span class="operator">></span>activeCamera()<span class="operator">,</span> <span class="string">"yRotation"</span>);
downAnimation<span class="operator">-</span><span class="operator">></span>setDuration(<span class="number">9000</span>);
downAnimation<span class="operator">-</span><span class="operator">></span>setStartValue(<span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="number">45.0f</span>));
downAnimation<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="type">QVariant</span><span class="operator">::</span>fromValue(<span class="number">5.0f</span>));
m_animationCameraY <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QSequentialAnimationGroup</span>();
m_animationCameraY<span class="operator">-</span><span class="operator">></span>setLoopCount(<span class="operator">-</span><span class="number">1</span>);
m_animationCameraY<span class="operator">-</span><span class="operator">></span>addAnimation(upAnimation);
m_animationCameraY<span class="operator">-</span><span class="operator">></span>addAnimation(downAnimation);
m_animationCameraX<span class="operator">-</span><span class="operator">></span>start();
m_animationCameraY<span class="operator">-</span><span class="operator">></span>start();
<span class="comment">// Give ownership of the handler to the graph and make it the active handler</span>
m_graph<span class="operator">-</span><span class="operator">></span>setActiveInputHandler(m_inputHandler);
m_selectionTimer <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QTimer</span>(<span class="keyword">this</span>);
m_selectionTimer<span class="operator">-</span><span class="operator">></span>setInterval(<span class="number">10</span>);
m_selectionTimer<span class="operator">-</span><span class="operator">></span>setSingleShot(<span class="keyword">false</span>);
<span class="type">QObject</span><span class="operator">::</span>connect(m_selectionTimer<span class="operator">,</span> <span class="operator">&</span><span class="type">QTimer</span><span class="operator">::</span>timeout<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span>
<span class="operator">&</span>ScatterDataModifier<span class="operator">::</span>triggerSelection);
m_selectionTimer<span class="operator">-</span><span class="operator">></span>start();
}
ScatterDataModifier<span class="operator">::</span><span class="operator">~</span>ScatterDataModifier()
{
<span class="keyword">delete</span> m_graph;
}
<span class="type">void</span> ScatterDataModifier<span class="operator">::</span>start()
{
addData();
}
<span class="type">void</span> ScatterDataModifier<span class="operator">::</span>addData()
{
<span class="type">QVector</span><span class="operator"><</span>QVector3D<span class="operator">></span> itemList;
<span class="comment">// Read data items from the file to QVector</span>
<span class="type">QTextStream</span> stream;
<span class="type">QFile</span> dataFile(<span class="string">":/data/data.txt"</span>);
<span class="keyword">if</span> (dataFile<span class="operator">.</span>open(<span class="type">QIODevice</span><span class="operator">::</span>ReadOnly <span class="operator">|</span> <span class="type">QIODevice</span><span class="operator">::</span>Text)) {
stream<span class="operator">.</span>setDevice(<span class="operator">&</span>dataFile);
<span class="keyword">while</span> (<span class="operator">!</span>stream<span class="operator">.</span>atEnd()) {
<span class="type">QString</span> line <span class="operator">=</span> stream<span class="operator">.</span>readLine();
<span class="keyword">if</span> (line<span class="operator">.</span>startsWith(<span class="string">"#"</span>)) <span class="comment">// Ignore comments</span>
<span class="keyword">continue</span>;
<span class="type">QStringList</span> strList <span class="operator">=</span> line<span class="operator">.</span>split(<span class="string">","</span><span class="operator">,</span> <span class="type">QString</span><span class="operator">::</span>SkipEmptyParts);
<span class="comment">// Each line has three data items: xPos, yPos and zPos value</span>
<span class="keyword">if</span> (strList<span class="operator">.</span>size() <span class="operator"><</span> <span class="number">3</span>) {
qWarning() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Invalid row read from data:"</span> <span class="operator"><</span><span class="operator"><</span> line;
<span class="keyword">continue</span>;
}
itemList<span class="operator">.</span>append(QVector3D(
strList<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">.</span>trimmed()<span class="operator">.</span>toFloat()<span class="operator">,</span>
strList<span class="operator">.</span>at(<span class="number">1</span>)<span class="operator">.</span>trimmed()<span class="operator">.</span>toFloat()<span class="operator">,</span>
strList<span class="operator">.</span>at(<span class="number">2</span>)<span class="operator">.</span>trimmed()<span class="operator">.</span>toFloat()));
}
} <span class="keyword">else</span> {
qWarning() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Unable to open data file:"</span> <span class="operator"><</span><span class="operator"><</span> dataFile<span class="operator">.</span>fileName();
}
<span class="comment">// Add data from the QVector to datamodel</span>
<span class="type"><a href="qscatterdataproxy.html#QScatterDataArray-typedef">QScatterDataArray</a></span> <span class="operator">*</span>dataArray <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qscatterdataproxy.html#QScatterDataArray-typedef">QScatterDataArray</a></span>;
dataArray<span class="operator">-</span><span class="operator">></span>resize(itemList<span class="operator">.</span>count());
<span class="type"><a href="qscatterdataitem.html">QScatterDataItem</a></span> <span class="operator">*</span>ptrToDataArray <span class="operator">=</span> <span class="operator">&</span>dataArray<span class="operator">-</span><span class="operator">></span>first();
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> itemList<span class="operator">.</span>count(); i<span class="operator">+</span><span class="operator">+</span>) {
ptrToDataArray<span class="operator">-</span><span class="operator">></span>setPosition(itemList<span class="operator">.</span>at(i));
ptrToDataArray<span class="operator">+</span><span class="operator">+</span>;
}
m_graph<span class="operator">-</span><span class="operator">></span>seriesList()<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">-</span><span class="operator">></span>dataProxy()<span class="operator">-</span><span class="operator">></span>resetArray(dataArray);
}
<span class="type">void</span> ScatterDataModifier<span class="operator">::</span>toggleCameraAnimation()
{
<span class="keyword">if</span> (m_animationCameraX<span class="operator">-</span><span class="operator">></span>state() <span class="operator">!</span><span class="operator">=</span> <span class="type">QAbstractAnimation</span><span class="operator">::</span>Paused) {
m_animationCameraX<span class="operator">-</span><span class="operator">></span>pause();
m_animationCameraY<span class="operator">-</span><span class="operator">></span>pause();
} <span class="keyword">else</span> {
m_animationCameraX<span class="operator">-</span><span class="operator">></span>resume();
m_animationCameraY<span class="operator">-</span><span class="operator">></span>resume();
}
}
<span class="type">void</span> ScatterDataModifier<span class="operator">::</span>triggerSelection()
{
m_graph<span class="operator">-</span><span class="operator">></span>scene()<span class="operator">-</span><span class="operator">></span>setSelectionQueryPosition(m_inputHandler<span class="operator">-</span><span class="operator">></span>inputPosition());
}
<span class="type">void</span> ScatterDataModifier<span class="operator">::</span>shadowQualityUpdatedByVisual(QAbstract3DGraph<span class="operator">::</span>ShadowQuality sq)
{
<span class="type">int</span> quality <span class="operator">=</span> <span class="type">int</span>(sq);
<span class="keyword">emit</span> shadowQualityChanged(quality); <span class="comment">// connected to a checkbox in main.cpp</span>
}
<span class="type">void</span> ScatterDataModifier<span class="operator">::</span>changeShadowQuality(<span class="type">int</span> quality)
{
QAbstract3DGraph<span class="operator">::</span>ShadowQuality sq <span class="operator">=</span> QAbstract3DGraph<span class="operator">::</span>ShadowQuality(quality);
m_graph<span class="operator">-</span><span class="operator">></span>setShadowQuality(sq);
}
</pre>
</div>
<!-- @@@custominput/scatterdatamodifier.cpp -->
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<acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
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distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-updates
>
by-pkgid
>
845e36bb3ecce380666d628d88446962
>
files
>
222
