Q3DSurface曲面

http://doc.qt.io/qt-5/q3dsurface.html

 #include <QtDataVisualization>

  using namespace QtDataVisualization;

  int main(int argc, char **argv)
  {
      QGuiApplication app(argc, argv);

      Q3DSurface surface;
      surface.setFlags(surface.flags() ^ Qt::FramelessWindowHint);
      QSurfaceDataArray *data = new QSurfaceDataArray;
      QSurfaceDataRow *dataRow1 = new QSurfaceDataRow;
      QSurfaceDataRow *dataRow2 = new QSurfaceDataRow;

      *dataRow1 << QVector3D(0.0f, 0.1f, 0.5f) << QVector3D(1.0f, 0.5f, 0.5f);
      *dataRow2 << QVector3D(0.0f, 1.8f, 1.0f) << QVector3D(1.0f, 1.2f, 1.0f);
      *data << dataRow1 << dataRow2;
      // 数据
      // 第一条线:
      // 0.0f, 0.1f, 0.5f           1.0f, 0.5f, 0.5f
      //第二条线：
      // 0.0f, 1.8f, 1.0f            1.0f, 1.2f, 1.0f
      
      // 发现：同一条线Z坐标相同
      //            不是同一条线，相同序号（即第几个）点的X坐标相同

      QSurface3DSeries *series = new QSurface3DSeries;
      series->dataProxy()->resetArray(data);
      surface.addSeries(series);
      surface.show();

      return app.exec();
  }
  
// 此外：
// void Q3DSurface::addSeries(QSurface3DSeries *series)
// Adds the series to the graph. A graph can contain multiple series, but has only one set of axes. If the 
// newly added series has specified a selected item, it will be highlighted and any existing selection will 
// be cleared. Only one added series can have an active selection.
// 也就是好像添加多个无效