surfacegraph.h Example File

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  #ifndef SURFACEGRAPH_H
  #define SURFACEGRAPH_H

  #include <QtDataVisualization/Q3DSurface>
  #include <QtDataVisualization/QSurfaceDataProxy>
  #include <QtDataVisualization/QHeightMapSurfaceDataProxy>
  #include <QtDataVisualization/QSurface3DSeries>
  #include <QtWidgets/QSlider>

  using namespace QtDataVisualization;

  class SurfaceGraph : public QObject
  {
      Q_OBJECT
  public:
      explicit SurfaceGraph(Q3DSurface *surface);
      ~SurfaceGraph();

      void enableHeightMapModel(bool enable);
      void enableSqrtSinModel(bool enable);

      void toggleModeNone() { m_graph->setSelectionMode(QAbstract3DGraph::SelectionNone); }
      void toggleModeItem() { m_graph->setSelectionMode(QAbstract3DGraph::SelectionItem); }
      void toggleModeSliceRow() { m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemAndRow
                                                            | QAbstract3DGraph::SelectionSlice); }
      void toggleModeSliceColumn() { m_graph->setSelectionMode(QAbstract3DGraph::SelectionItemAndColumn
                                                               | QAbstract3DGraph::SelectionSlice); }

      void setBlackToYellowGradient();
      void setGreenToRedGradient();

      void setAxisMinSliderX(QSlider *slider) { m_axisMinSliderX = slider; }
      void setAxisMaxSliderX(QSlider *slider) { m_axisMaxSliderX = slider; }
      void setAxisMinSliderZ(QSlider *slider) { m_axisMinSliderZ = slider; }
      void setAxisMaxSliderZ(QSlider *slider) { m_axisMaxSliderZ = slider; }

      void adjustXMin(int min);
      void adjustXMax(int max);
      void adjustZMin(int min);
      void adjustZMax(int max);

  public Q_SLOTS:
      void changeTheme(int theme);

  private:
      Q3DSurface *m_graph;
      QHeightMapSurfaceDataProxy *m_heightMapProxy;
      QSurfaceDataProxy *m_sqrtSinProxy;
      QSurface3DSeries *m_heightMapSeries;
      QSurface3DSeries *m_sqrtSinSeries;

      QSlider *m_axisMinSliderX;
      QSlider *m_axisMaxSliderX;
      QSlider *m_axisMinSliderZ;
      QSlider *m_axisMaxSliderZ;
      float m_rangeMinX;
      float m_rangeMinZ;
      float m_stepX;
      float m_stepZ;
      int m_heightMapWidth;
      int m_heightMapHeight;

      void setAxisXRange(float min, float max);
      void setAxisZRange(float min, float max);
      void fillSqrtSinProxy();
  };

  #endif // SURFACEGRAPH_H