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<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 &quot;scatterdatamodifier.h&quot;</span>
  <span class="preprocessor">#include &lt;QtDataVisualization/qscatterdataproxy.h&gt;</span>
  <span class="preprocessor">#include &lt;QtDataVisualization/qvalue3daxis.h&gt;</span>
  <span class="preprocessor">#include &lt;QtDataVisualization/q3dscene.h&gt;</span>
  <span class="preprocessor">#include &lt;QtDataVisualization/q3dcamera.h&gt;</span>
  <span class="preprocessor">#include &lt;QtDataVisualization/qscatter3dseries.h&gt;</span>
  <span class="preprocessor">#include &lt;QtDataVisualization/q3dtheme.h&gt;</span>
  <span class="preprocessor">#include &lt;QtCore/qmath.h&gt;</span>
  <span class="preprocessor">#include &lt;QtCore/qrandom.h&gt;</span>
  <span class="preprocessor">#include &lt;QtWidgets/QComboBox&gt;</span>

  <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="type"><a href="qtdatavisualization-qmlmodule.html">QtDataVisualization</a></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">&gt;</span>activeTheme()<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>activeTheme()<span class="operator">-</span><span class="operator">&gt;</span>font();
      font<span class="operator">.</span>setPointSize(m_fontSize);
      m_graph<span class="operator">-</span><span class="operator">&gt;</span>activeTheme()<span class="operator">-</span><span class="operator">&gt;</span>setFont(font);
      m_graph<span class="operator">-</span><span class="operator">&gt;</span>setShadowQuality(QAbstract3DGraph<span class="operator">::</span>ShadowQualitySoftLow);
      m_graph<span class="operator">-</span><span class="operator">&gt;</span>scene()<span class="operator">-</span><span class="operator">&gt;</span>activeCamera()<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>setItemLabelFormat(<span class="type">QStringLiteral</span>(<span class="string">&quot;@xTitle: @xLabel @yTitle: @yLabel @zTitle: @zLabel&quot;</span>));
      series<span class="operator">-</span><span class="operator">&gt;</span>setMeshSmooth(m_smooth);
      m_graph<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>axisX()<span class="operator">-</span><span class="operator">&gt;</span>setTitle(<span class="string">&quot;X&quot;</span>);
      m_graph<span class="operator">-</span><span class="operator">&gt;</span>axisY()<span class="operator">-</span><span class="operator">&gt;</span>setTitle(<span class="string">&quot;Y&quot;</span>);
      m_graph<span class="operator">-</span><span class="operator">&gt;</span>axisZ()<span class="operator">-</span><span class="operator">&gt;</span>setTitle(<span class="string">&quot;Z&quot;</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">&gt;</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">&amp;</span>dataArray<span class="operator">-</span><span class="operator">&gt;</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">&lt;</span> m_itemCount; i<span class="operator">+</span><span class="operator">+</span>) {
          ptrToDataArray<span class="operator">-</span><span class="operator">&gt;</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">&lt;</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">&lt;</span> limit; j<span class="operator">+</span><span class="operator">+</span>) {
              ptrToDataArray<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>seriesList()<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">-</span><span class="operator">&gt;</span>dataProxy()<span class="operator">-</span><span class="operator">&gt;</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">&lt;</span><span class="type">QComboBox</span> <span class="operator">*</span><span class="operator">&gt;</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">&gt;</span>itemData(style)<span class="operator">.</span>toInt());
          <span class="keyword">if</span> (m_graph<span class="operator">-</span><span class="operator">&gt;</span>seriesList()<span class="operator">.</span>size())
              m_graph<span class="operator">-</span><span class="operator">&gt;</span>seriesList()<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>seriesList()<span class="operator">.</span>at(<span class="number">0</span>);
      series<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>activeTheme();
      currentTheme<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>isBackgroundEnabled());
      <span class="keyword">emit</span> gridEnabledChanged(currentTheme<span class="operator">-</span><span class="operator">&gt;</span>isGridEnabled());
      <span class="keyword">emit</span> fontChanged(currentTheme<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>scene()<span class="operator">-</span><span class="operator">&gt;</span>activeCamera()<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</span>activeTheme()<span class="operator">-</span><span class="operator">&gt;</span>setLabelBackgroundEnabled(<span class="operator">!</span>m_graph<span class="operator">-</span><span class="operator">&gt;</span>activeTheme()<span class="operator">-</span><span class="operator">&gt;</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">&amp;</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">&gt;</span>activeTheme()<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</span>activeTheme()<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>activeTheme()<span class="operator">-</span><span class="operator">&gt;</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">&gt;</span>seriesList()<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">-</span><span class="operator">&gt;</span>dataProxy()<span class="operator">-</span><span class="operator">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</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">&gt;</span>bounded(<span class="number">100</span>)) <span class="operator">/</span> <span class="number">2.0f</span>);
  }

</pre>
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<!-- @@@scatter/scatterdatamodifier.cpp -->
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