text: #ifndef HEATMAP_H
  #define HEATMAP_H
  #include <QJsonDocument>
  #include <QJsonObject>
  #include <QJsonArray>
  #include <vector>
  #include <iostream>
  
  struct Data{
      double latitude;
      double longitude;
      int total;
  };
  
  class HeatMap
  {
  public:
      HeatMap();
      void reset();
      QString getStr();
      void addData(QString jsonStr);
      std::vector<Data> data;
  };
  
  #endif // HEATMAP_H
  