<?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>scatterdatamodifier.cpp Example File | Qt Data Visualization 5.12.2</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="qtdatavisualization-index.html">Qt Data Visualization</a></td><td ><a href="qtdatavisualization-custominput-example.html">Custom Input Example</a></td><td >scatterdatamodifier.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtdatavisualization-index.html">Qt Data Visualization | 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">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">QtDataVisualization</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 --> </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>