data.cpp Example File

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  ** Contact: https://www.qt.io/licensing/
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  ** This file is part of the Qt Data Visualization module of the Qt Toolkit.
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  #include "data.h"

  #include <QtDataVisualization/QScatterDataProxy>
  #include <QtDataVisualization/Q3DScene>
  #include <QtDataVisualization/Q3DCamera>
  #include <QtDataVisualization/QScatter3DSeries>
  #include <QtDataVisualization/Q3DTheme>

  using namespace QtDataVisualization;

  const int itemCount = 500;

  Data::Data(Q3DScatter *scatter)
      : m_graph(scatter),
        m_inputHandler(new AxesInputHandler(scatter)),
        m_autoAdjust(false)
  {
      m_graph->activeTheme()->setType(Q3DTheme::ThemeEbony);
      m_graph->activeTheme()->setLabelBorderEnabled(true);
      m_graph->activeTheme()->setLabelBackgroundColor(QColor(QRgb(0x151550)));
      m_graph->activeTheme()->setLabelTextColor(Qt::lightGray);
      m_graph->activeTheme()->setFont(QFont("Arial Black", 30));
      m_graph->setShadowQuality(QAbstract3DGraph::ShadowQualityMedium);
      m_graph->scene()->activeCamera()->setCameraPreset(Q3DCamera::CameraPresetIsometricRight);

      m_graph->axisX()->setRange(-20.0f, 20.0f);
      m_graph->axisY()->setRange(-10.0f, 10.0f);
      m_graph->axisZ()->setRange(-20.0f, 20.0f);

      // Give ownership of the handler to the graph and make it the active handler
      m_graph->setActiveInputHandler(m_inputHandler);

      // Give our axes to the input handler
      m_inputHandler->setAxes(m_graph->axisX(), m_graph->axisZ(), m_graph->axisY());

      addData();
  }

  Data::~Data()
  {
      delete m_graph;
  }

  void Data::toggleRanges()
  {
      if (!m_autoAdjust) {
          m_graph->axisX()->setAutoAdjustRange(true);
          m_graph->axisZ()->setAutoAdjustRange(true);
          m_graph->axisY()->setAutoAdjustRange(true);
          m_inputHandler->setDragSpeedModifier(1.5f);
          m_autoAdjust = true;
      } else {
          m_graph->axisX()->setRange(-20.0f, 20.0f);
          m_graph->axisY()->setRange(-10.0f, 10.0f);
          m_graph->axisZ()->setRange(-20.0f, 20.0f);
          m_inputHandler->setDragSpeedModifier(15.0f);
          m_autoAdjust = false;
      }
  }

  void Data::addData()
  {
      QScatter3DSeries *series = new QScatter3DSeries;
      series->setMesh(QAbstract3DSeries::MeshCube);
      series->setMeshSmooth(true);
      m_graph->addSeries(series);

      QScatter3DSeries *series2 = new QScatter3DSeries;
      series2->setMesh(QAbstract3DSeries::MeshMinimal);
      series2->setMeshSmooth(true);
      m_graph->addSeries(series2);

      QScatter3DSeries *series3 = new QScatter3DSeries;
      series3->setMesh(QAbstract3DSeries::MeshSphere);
      series3->setMeshSmooth(true);
      m_graph->addSeries(series3);

      QScatter3DSeries *series4 = new QScatter3DSeries;
      series4->setMesh(QAbstract3DSeries::MeshBevelCube);
      series4->setMeshSmooth(true);
      m_graph->addSeries(series4);

      QScatter3DSeries *series5 = new QScatter3DSeries;
      series5->setMesh(QAbstract3DSeries::MeshSphere);
      m_graph->addSeries(series5);

      QScatterDataArray *dataArray = new QScatterDataArray;
      dataArray->resize(itemCount);
      QScatterDataItem *ptrToDataArray = &dataArray->first();
      for (int i = 0; i < itemCount; i++) {
          ptrToDataArray->setPosition(randVector());
          ptrToDataArray++;
      }
      QScatterDataArray *dataArray2 = new QScatterDataArray;
      dataArray2->resize(itemCount);
      ptrToDataArray = &dataArray2->first();
      for (int i = 0; i < itemCount; i++) {
          ptrToDataArray->setPosition(randVector());
          ptrToDataArray++;
      }
      QScatterDataArray *dataArray3 = new QScatterDataArray;
      dataArray3->resize(itemCount);
      ptrToDataArray = &dataArray3->first();
      for (int i = 0; i < itemCount; i++) {
          ptrToDataArray->setPosition(randVector());
          ptrToDataArray++;
      }
      QScatterDataArray *dataArray4 = new QScatterDataArray;
      dataArray4->resize(itemCount);
      ptrToDataArray = &dataArray4->first();
      for (int i = 0; i < itemCount; i++) {
          ptrToDataArray->setPosition(randVector());
          ptrToDataArray++;
      }
      QScatterDataArray *dataArray5 = new QScatterDataArray;
      dataArray5->resize(itemCount);
      ptrToDataArray = &dataArray5->first();
      for (int i = 0; i < itemCount; i++) {
          ptrToDataArray->setPosition(randVector());
          ptrToDataArray++;
      }

      m_graph->seriesList().at(0)->dataProxy()->resetArray(dataArray);
      m_graph->seriesList().at(1)->dataProxy()->resetArray(dataArray2);
      m_graph->seriesList().at(2)->dataProxy()->resetArray(dataArray3);
      m_graph->seriesList().at(3)->dataProxy()->resetArray(dataArray4);
      m_graph->seriesList().at(4)->dataProxy()->resetArray(dataArray5);
  }

  QVector3D Data::randVector()
  {
      return QVector3D(
                  (float)(rand() % 100) / 2.0f - (float)(rand() % 100) / 2.0f,
                  (float)(rand() % 100) / 2.0f - (float)(rand() % 100) / 2.0f,
                  (float)(rand() % 100) / 2.0f - (float)(rand() % 100) / 2.0f);
  }