eqd.h

使用finger协议从USGS(美国地质勘探局)获取地震数据

/*
Module : EQD.H
Purpose: Implementation for a MFC class to retrieve earthquake data from the US 
         Geological Survey Web site.
Created: PJN / 18-10-1999

Copyright (c) 1999 by PJ Naughter.  
All rights reserved.

*/


/////////////////////////////// Defines ///////////////////////////////////////
#ifndef __EQD_H__
#define __EQD_H__

#ifndef __AFXTEMPL_H__
#pragma message("EQD classes require afxtempl.h in your PCH")                                                                                
#endif

  

/////////////////////////////// Classes ///////////////////////////////////////

//Data pertaining to 1 single earthquake
class CQuakeData
{
public:
//Constructors / Destructors
  CQuakeData();

//Methods
  BOOL Parse(const CString& sLine); //Converts a line as returned into the member variable

//Enums
enum MagnitudeType
{
  Ml,   //  
  Lg,   //Local or regional magnitude
  Md,   //Duration wave
  Mb,   //Body wave
  Ms,   //Surface wave
  Mw,   //Moment wave
};

enum LocationQuality
{
  A,    //Quake location is "Good"
  B,    //Quake location is "Fair"
  C,    //Quake location is "Poor"
  D,    //Quake Location is "Bad"
  U,    //Quake Location quality has not been determined
};

//Member variables
  SYSTEMTIME      m_Time;      //The UTC date and time when the quake took place.
  float           m_Latitude;  //The latitude where the quake took place
  float           m_Longitude; //The longitude where the quake took place
  float           m_Depth;     //The depth in Km below sea level of the epicenter
  MagnitudeType   m_MagType;   //the type of magnitude quoted
  float           m_Magnitude; //The actual magnitude of the earthquake (Richter Scale).
  LocationQuality m_Quality;   //The quality of the location fix
  CString         m_sComments; //Textual Description, Normally the location of the quake
};
                
                     
//The main class which encapsulates the data retrieval
class CEQD
{
public:
//Methods
  BOOL GetQuakeData(CArray<CQuakeData, CQuakeData&>& data, DWORD dwTimeout=500);

protected:
  LPTSTR GetNextLine(LPTSTR pszData, CString& sLine);
};


#endif //__EQD_H__