tabfeature.h

linux下一款GIS程序源码

// tabfeature.h: interface for the TABFeature class.
//
/*---------------------------------------------------------------------
 *                      class TABFeature
 *
 * Extend the UGKFeature to support MapInfo specific extensions related
 * to geometry types, representation strings, etc.
 *
 * TABFeature will be used as a base class for all the feature classes.
 *
 * This class will also be used to instanciate objects with no Geometry
 * (i.e. type TAB_GEOM_NONE) which is a valid case in MapInfo.
 *
 * The logic to read/write the object from/to the .DAT and .MAP files is also
 * implemented as part of this class and derived classes.
 *--------------------------------------------------------------------*/

#ifndef TABFeature_H
#define TABFeature_H

#include "ugkfeature.h"
#include "tabmapfile.h"
#include "tabdatfile.h"
#include "tabmapobjhdr.h"
#include "tabindfile.h"
#include "middatafile.h"


class TABFeature : public UGKFeature  
{
protected:
	int         m_nMapInfoType;

	double      m_dXMin;  //边界
	double      m_dYMin;
	double      m_dXMax;
	double      m_dYMax;

	UGKBool       m_bDeletedFlag;

	void        CopyTABFeatureBase(TABFeature *poDestFeature);

	UGKInt32      m_nXMin;
      UGKInt32      m_nYMin;
      UGKInt32      m_nXMax;
      UGKInt32      m_nYMax;
      UGKInt32      m_nComprOrgX;
      UGKInt32      m_nComprOrgY;


public:
	TABFeature(UGKFeatureDefn *poDefnIn);
	virtual ~TABFeature();

	virtual TABFeature     *CloneTABFeature(UGKFeatureDefn *pNewDefn = NULL);
	virtual TABFeatureClass GetFeatureClass() { return TABFCNoGeomFeature; };
	virtual int             GetMapInfoType()  { return m_nMapInfoType; };
    virtual int            ValidateMapInfoType(TABMAPFile *poMapFile = NULL)
                                                {m_nMapInfoType=TAB_GEOM_NONE;
                                                 return m_nMapInfoType;};

	UGKBool       IsRecordDeleted() { return m_bDeletedFlag; };
	void        SetRecordDeleted(UGKBool bDeleted) { m_bDeletedFlag=bDeleted; };

    /*-----------------------------------------------------------------
     * TAB Support
     *----------------------------------------------------------------*/
	virtual int ReadRecordFromDATFile(TABDATFile *poDATFile);
	virtual int ReadGeometryFromMAPFile(TABMAPFile *poMapFile, TABMAPObjHdr *);

    virtual int WriteRecordToDATFile(TABDATFile *poDATFile,
                                     TABINDFile *poINDFile, int *panIndexNo);
	virtual int WriteGeometryToMAPFile(TABMAPFile *poMapFile, TABMAPObjHdr *);
	UGKBool       ValidateCoordType(TABMAPFile * poMapFile);

    /*-----------------------------------------------------------------
     * Mid/Mif Support
     *----------------------------------------------------------------*/
	virtual int ReadRecordFromMIDFile(MIDDATAFile *fp);
	virtual int ReadGeometryFromMIFFile(MIDDATAFile *fp);

	virtual int WriteRecordToMIDFile(MIDDATAFile *fp);
	virtual int WriteGeometryToMIFFile(MIDDATAFile *fp);

	void ReadMIFParameters(MIDDATAFile *fp);
	void WriteMIFParameters(MIDDATAFile *fp);

    void        SetMBR(double dXMin, double dYMin, 
                       double dXMax, double dYMax);
    void        GetMBR(double &dXMin, double &dYMin, 
                       double &dXMax, double &dYMax);

    virtual void DumpMID(FILE *fpOut = NULL);
    virtual void DumpMIF(FILE *fpOut = NULL);

};

#endif