<?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-scatter-example.html">Scatter 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">scatter/scatterdatamodifier.cpp</span> <!-- $$$scatter/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.h></span> <span class="preprocessor">#include <QtDataVisualization/qvalue3daxis.h></span> <span class="preprocessor">#include <QtDataVisualization/q3dscene.h></span> <span class="preprocessor">#include <QtDataVisualization/q3dcamera.h></span> <span class="preprocessor">#include <QtDataVisualization/qscatter3dseries.h></span> <span class="preprocessor">#include <QtDataVisualization/q3dtheme.h></span> <span class="preprocessor">#include <QtCore/qmath.h></span> <span class="preprocessor">#include <QtCore/qrandom.h></span> <span class="preprocessor">#include <QtWidgets/QComboBox></span> <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="type">QtDataVisualization</span>; <span class="comment">//#define RANDOM_SCATTER // Uncomment this to switch to random scatter</span> <span class="keyword">const</span> <span class="type">int</span> numberOfItems <span class="operator">=</span> <span class="number">3600</span>; <span class="keyword">const</span> <span class="type">float</span> curveDivider <span class="operator">=</span> <span class="number">3.0f</span>; <span class="keyword">const</span> <span class="type">int</span> lowerNumberOfItems <span class="operator">=</span> <span class="number">900</span>; <span class="keyword">const</span> <span class="type">float</span> lowerCurveDivider <span class="operator">=</span> <span class="number">0.75f</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_fontSize(<span class="number">40.0f</span>)<span class="operator">,</span> m_style(QAbstract3DSeries<span class="operator">::</span>MeshSphere)<span class="operator">,</span> m_smooth(<span class="keyword">true</span>)<span class="operator">,</span> m_itemCount(lowerNumberOfItems)<span class="operator">,</span> m_curveDivider(lowerCurveDivider) { 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>ThemeEbony); <span class="type">QFont</span> font <span class="operator">=</span> m_graph<span class="operator">-</span><span class="operator">></span>activeTheme()<span class="operator">-</span><span class="operator">></span>font(); font<span class="operator">.</span>setPointSize(m_fontSize); m_graph<span class="operator">-</span><span class="operator">></span>activeTheme()<span class="operator">-</span><span class="operator">></span>setFont(font); m_graph<span class="operator">-</span><span class="operator">></span>setShadowQuality(QAbstract3DGraph<span class="operator">::</span>ShadowQualitySoftLow); 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); <span class="type"><a href="qscatterdataproxy.html">QScatterDataProxy</a></span> <span class="operator">*</span>proxy <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qscatterdataproxy.html">QScatterDataProxy</a></span>; QScatter3DSeries <span class="operator">*</span>series <span class="operator">=</span> <span class="keyword">new</span> QScatter3DSeries(proxy); series<span class="operator">-</span><span class="operator">></span>setItemLabelFormat(<span class="type">QStringLiteral</span>(<span class="string">"@xTitle: @xLabel @yTitle: @yLabel @zTitle: @zLabel"</span>)); series<span class="operator">-</span><span class="operator">></span>setMeshSmooth(m_smooth); m_graph<span class="operator">-</span><span class="operator">></span>addSeries(series); addData(); } 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>addData() { <span class="comment">// Configure the axes according to the data</span> m_graph<span class="operator">-</span><span class="operator">></span>axisX()<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"X"</span>); m_graph<span class="operator">-</span><span class="operator">></span>axisY()<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Y"</span>); m_graph<span class="operator">-</span><span class="operator">></span>axisZ()<span class="operator">-</span><span class="operator">></span>setTitle(<span class="string">"Z"</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(m_itemCount); <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="preprocessor">#ifdef RANDOM_SCATTER</span> <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> m_itemCount; i<span class="operator">+</span><span class="operator">+</span>) { ptrToDataArray<span class="operator">-</span><span class="operator">></span>setPosition(randVector()); ptrToDataArray<span class="operator">+</span><span class="operator">+</span>; } <span class="preprocessor">#else</span> <span class="type">float</span> limit <span class="operator">=</span> qSqrt(m_itemCount) <span class="operator">/</span> <span class="number">2.0f</span>; <span class="keyword">for</span> (<span class="type">float</span> i <span class="operator">=</span> <span class="operator">-</span>limit; i <span class="operator"><</span> limit; i<span class="operator">+</span><span class="operator">+</span>) { <span class="keyword">for</span> (<span class="type">float</span> j <span class="operator">=</span> <span class="operator">-</span>limit; j <span class="operator"><</span> limit; j<span class="operator">+</span><span class="operator">+</span>) { ptrToDataArray<span class="operator">-</span><span class="operator">></span>setPosition(QVector3D(i <span class="operator">+</span> <span class="number">0.5f</span><span class="operator">,</span> qCos(qDegreesToRadians((i <span class="operator">*</span> j) <span class="operator">/</span> m_curveDivider))<span class="operator">,</span> j <span class="operator">+</span> <span class="number">0.5f</span>)); ptrToDataArray<span class="operator">+</span><span class="operator">+</span>; } } <span class="preprocessor">#endif</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>changeStyle(<span class="type">int</span> style) { <span class="type">QComboBox</span> <span class="operator">*</span>comboBox <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type">QComboBox</span> <span class="operator">*</span><span class="operator">></span>(sender()); <span class="keyword">if</span> (comboBox) { m_style <span class="operator">=</span> QAbstract3DSeries<span class="operator">::</span>Mesh(comboBox<span class="operator">-</span><span class="operator">></span>itemData(style)<span class="operator">.</span>toInt()); <span class="keyword">if</span> (m_graph<span class="operator">-</span><span class="operator">></span>seriesList()<span class="operator">.</span>size()) 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>setMesh(m_style); } } <span class="type">void</span> ScatterDataModifier<span class="operator">::</span>setSmoothDots(<span class="type">int</span> smooth) { m_smooth <span class="operator">=</span> bool(smooth); QScatter3DSeries <span class="operator">*</span>series <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>); series<span class="operator">-</span><span class="operator">></span>setMeshSmooth(m_smooth); } <span class="type">void</span> ScatterDataModifier<span class="operator">::</span>changeTheme(<span class="type">int</span> theme) { <span class="type"><a href="q3dtheme.html">Q3DTheme</a></span> <span class="operator">*</span>currentTheme <span class="operator">=</span> m_graph<span class="operator">-</span><span class="operator">></span>activeTheme(); currentTheme<span class="operator">-</span><span class="operator">></span>setType(<span class="type"><a href="q3dtheme.html">Q3DTheme</a></span><span class="operator">::</span>Theme(theme)); <span class="keyword">emit</span> backgroundEnabledChanged(currentTheme<span class="operator">-</span><span class="operator">></span>isBackgroundEnabled()); <span class="keyword">emit</span> gridEnabledChanged(currentTheme<span class="operator">-</span><span class="operator">></span>isGridEnabled()); <span class="keyword">emit</span> fontChanged(currentTheme<span class="operator">-</span><span class="operator">></span>font()); } <span class="type">void</span> ScatterDataModifier<span class="operator">::</span>changePresetCamera() { <span class="keyword">static</span> <span class="type">int</span> preset <span class="operator">=</span> <span class="type"><a href="q3dcamera.html">Q3DCamera</a></span><span class="operator">::</span>CameraPresetFrontLow; 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>CameraPreset)preset); <span class="keyword">if</span> (<span class="operator">+</span><span class="operator">+</span>preset <span class="operator">></span> <span class="type"><a href="q3dcamera.html">Q3DCamera</a></span><span class="operator">::</span>CameraPresetDirectlyBelow) preset <span class="operator">=</span> <span class="type"><a href="q3dcamera.html">Q3DCamera</a></span><span class="operator">::</span>CameraPresetFrontLow; } <span class="type">void</span> ScatterDataModifier<span class="operator">::</span>changeLabelStyle() { m_graph<span class="operator">-</span><span class="operator">></span>activeTheme()<span class="operator">-</span><span class="operator">></span>setLabelBackgroundEnabled(<span class="operator">!</span>m_graph<span class="operator">-</span><span class="operator">></span>activeTheme()<span class="operator">-</span><span class="operator">></span>isLabelBackgroundEnabled()); } <span class="type">void</span> ScatterDataModifier<span class="operator">::</span>changeFont(<span class="keyword">const</span> <span class="type">QFont</span> <span class="operator">&</span>font) { <span class="type">QFont</span> newFont <span class="operator">=</span> font; newFont<span class="operator">.</span>setPointSizeF(m_fontSize); m_graph<span class="operator">-</span><span class="operator">></span>activeTheme()<span class="operator">-</span><span class="operator">></span>setFont(newFont); } <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); } <span class="type">void</span> ScatterDataModifier<span class="operator">::</span>setBackgroundEnabled(<span class="type">int</span> enabled) { m_graph<span class="operator">-</span><span class="operator">></span>activeTheme()<span class="operator">-</span><span class="operator">></span>setBackgroundEnabled((bool)enabled); } <span class="type">void</span> ScatterDataModifier<span class="operator">::</span>setGridEnabled(<span class="type">int</span> enabled) { m_graph<span class="operator">-</span><span class="operator">></span>activeTheme()<span class="operator">-</span><span class="operator">></span>setGridEnabled((bool)enabled); } <span class="type">void</span> ScatterDataModifier<span class="operator">::</span>toggleItemCount() { <span class="keyword">if</span> (m_itemCount <span class="operator">=</span><span class="operator">=</span> numberOfItems) { m_itemCount <span class="operator">=</span> lowerNumberOfItems; m_curveDivider <span class="operator">=</span> lowerCurveDivider; } <span class="keyword">else</span> { m_itemCount <span class="operator">=</span> numberOfItems; m_curveDivider <span class="operator">=</span> curveDivider; } 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(<span class="number">0</span>); addData(); } QVector3D ScatterDataModifier<span class="operator">::</span>randVector() { <span class="keyword">return</span> QVector3D( (<span class="type">float</span>)(<span class="type">QRandomGenerator</span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">100</span>)) <span class="operator">/</span> <span class="number">2.0f</span> <span class="operator">-</span> (<span class="type">float</span>)(<span class="type">QRandomGenerator</span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">100</span>)) <span class="operator">/</span> <span class="number">2.0f</span><span class="operator">,</span> (<span class="type">float</span>)(<span class="type">QRandomGenerator</span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">100</span>)) <span class="operator">/</span> <span class="number">100.0f</span> <span class="operator">-</span> (<span class="type">float</span>)(<span class="type">QRandomGenerator</span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">100</span>)) <span class="operator">/</span> <span class="number">100.0f</span><span class="operator">,</span> (<span class="type">float</span>)(<span class="type">QRandomGenerator</span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">100</span>)) <span class="operator">/</span> <span class="number">2.0f</span> <span class="operator">-</span> (<span class="type">float</span>)(<span class="type">QRandomGenerator</span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">100</span>)) <span class="operator">/</span> <span class="number">2.0f</span>); } </pre> </div> <!-- @@@scatter/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>