shpfile.h

其实跟上面一个是一样一样一样一样一样一样一样一样一样一样一样一样一样一样一样一样一样的

/************************************************************
  文件名: shpFile.h
  
  作者:   钱军洪       Version : 1.0          Date: 2002/12/21
  
  类描述: 完成Shp、shx、dbf 文件读取 实现对shp对象的管理及
          绘制工作
  
  邮件地址：[e-mail]
***********************************************************/


#ifndef _SHPFILE_H_
#define _SHPFILE_H_

#include "Global.h"
#include "MapRectangle.h"
#include "MapLine.h"
#include "MapPolygon.h"
#include "MapRender.h"
#include "MapRecordSet.h"

#define FILE_VERSION 1000
#define MAX_BUFFER_SIZE 32768 /*32K*/

/*系统错误常量*/

#define FILE_READERR    -1 
#define FILE_CODEERR    -2 
#define FILE_VERSIONERR -3

//shp 类型
#define NULLSHP       0
#define POINT         1
#define POLYLINE      3
#define POLYGON       5
#define MULTIPOINT    8
#define POINTZ        11
#define POLYLINEZ     13
#define POLYGONZ      15
#define MULTIPOINTZ   18
#define POINTM        21
#define POLYLINEM     23
#define POLYGONM      25
#define MULTIPOINTM   28
#define MULTIPATCH    31 

#pragma pack(4) 


typedef struct  {

	int iFileCode;      //文件标识
	int iReserved[5];   //保留字节
	int iFileLength;    //文件长度
	int iVersion;       //版本号
	int iShpType;       //文件类型
	double dbXMin;
	double dbYMin;
	double dbXMax;
	double dbYMax;
	double dbZMin;
	double dbZMax;
	double dbMMin;
	double dbMMax;

} SHPHEADER;

typedef struct shpRecordHeader {
	
	int iRecordNum;      //记录数
	int iContentLength;  //记录内容长度

} SHPRECORDHEADER;

typedef struct shpPoint
{
	double dbX;
	double dbY;

} SHPPOINT;

typedef struct shpPtContent {
	
	int iShpType;
	double dbX;
	double dbY;

} SHPPTCONTENT;


typedef struct shxRecord {
	
	int iOffset;
	int iContentLength;

} SHXRECORD;

typedef struct shpInfo {
	
	int ishpType;          //shp 类型
	shpPoint Box[2];       //最大矩形范围 
	int iNumParts;         //分段数
	int iNumPoints;        //shp总共顶点数  

} SHPINFO;

class CMapLayer;

class CShpFile 
{


public:
    CShpFile();
	virtual ~CShpFile();

public:
	BOOL ReadShp(CString& csFileName);
	CMapRectangle GetExtent();
	void SetExtent(CMapRectangle& extent );
	int GetShpType( ) {return m_shpType;};
	void SetShpType(int& iShpType);
	int SearchShape(CMapPoint& pt );
	void DrawShp(CDC*pDC ,  CMapRender* m_pRender , DrawParam& draw );
	void FlashShp(CDC*pDC , DrawParam& draw , int iIndex);
protected:
	BOOL ReadRecord();
	BOOL GetRecordHeader(SHPRECORDHEADER& varHeader );
	BOOL GetShpInfo(SHPINFO& varInfo);
	int  ReadPoint(char* pszBuffer,int& iLength,BOOL& bEof); 
	int SetRecordPos( int iRecord );
	BOOL ReadDBF(CString& csFileName);
private:
	void DrawPoint(CDC*pDC ,  CMapRender* m_pRender , DrawParam& draw );
	void DrawPointElement(CDC*pDC,CMapPoint *pPoint,DrawParam& draw );
    void DrawPLine(CDC*pDC ,  CMapRender* m_pRender , DrawParam& draw );
	void DrawPLineElement(CDC*pDC,CMapLine *pPline , DrawParam& draw );
	void DrawPolygon(CDC*pDC ,  CMapRender* m_pRender , DrawParam& draw );
	void DrawPolygonElement(CDC*pDC , CMapPolygon* pPolygon , DrawParam& draw );
private:
	BOOL bShpOpen,bShxOpen;
	BOOL m_bBigEndian; 
	CFile fShp,fShx;
	CMapRectangle m_Extent;
	CMapRecordSet *pRecordSet;
private:
	int m_shpFileLength;
	int m_shxFileLength;
	int m_iRecordCount;
	int m_shpType;
	CMapRectangle m_CurMapExtent;
	CObList m_ObList;
private:
	friend class CMapLayer;


};
#endif //_SHPFILE_H_