Axis Range Dragging With Labels Example

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 #include "data.h"

 #include <QtCore/QRandomGenerator>
 #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)(QRandomGenerator::global()->bounded(100)) / 2.0f -
                 (float)(QRandomGenerator::global()->bounded(100)) / 2.0f,
                 (float)(QRandomGenerator::global()->bounded(100)) / 2.0f -
                 (float)(QRandomGenerator::global()->bounded(100)) / 2.0f,
                 (float)(QRandomGenerator::global()->bounded(100)) / 2.0f -
                 (float)(QRandomGenerator::global()->bounded(100)) / 2.0f);
 }