/**********************************************************************
* DumpTabFile()
*
* Open a .TAB file and print all the geogr. objects found.
**********************************************************************/
static int DumpTabFile(const char *pszFname)
{
IMapInfoFile *poFile;
int nFeatureId;
TABFeature *poFeature;
/*---------------------------------------------------------------------
* Try to open source file
*--------------------------------------------------------------------*/
if ((poFile = IMapInfoFile::SmartOpen(pszFname)) == NULL)
{
printf("Failed to open %s\n", pszFname);
return -1;
}
poFile->Dump();
/*---------------------------------------------------------------------
* Check for indexed fields
*--------------------------------------------------------------------*/
for(int iField=0; iField<poFile->GetLayerDefn()->GetFieldCount(); iField++)
{
if (poFile->IsFieldIndexed(iField))
printf(" Field %d is indexed\n", iField);
}
/*---------------------------------------------------------------------
* Read/Dump objects until EOF is reached
*--------------------------------------------------------------------*/
nFeatureId = -1;
while ( (nFeatureId = poFile->GetNextFeatureId(nFeatureId)) != -1 )
{
poFeature = poFile->GetFeatureRef(nFeatureId);
if (poFeature)
{
// poFeature->DumpReadable(stdout);
printf("\nFeature %d:\n", nFeatureId);
poFeature->DumpMID();
poFeature->DumpMIF();
}
else
break; // GetFeatureRef() failed: Abort the loop
}
/*---------------------------------------------------------------------
* Cleanup and exit.
*--------------------------------------------------------------------*/
poFile->Close();
delete poFile;
return 0;
}
/**********************************************************************
* DumpViaSpatialIndex()
*
* Open a .TAB file and print all the geogr. objects that match the
* specified filter. Scanes the file via the spatial index.
**********************************************************************/
static int DumpViaSpatialIndex(const char *pszFname,
double dXMin, double dYMin,
double dXMax, double dYMax)
{
IMapInfoFile *poFile;
TABFeature *poFeature;
/*---------------------------------------------------------------------
* Try to open source file
*--------------------------------------------------------------------*/
if ((poFile = IMapInfoFile::SmartOpen(pszFname)) == NULL)
{
printf("Failed to open %s\n", pszFname);
return -1;
}
poFile->Dump();
/*---------------------------------------------------------------------
* Check for indexed fields
*--------------------------------------------------------------------*/
for(int iField=0; iField<poFile->GetLayerDefn()->GetFieldCount(); iField++)
{
if (poFile->IsFieldIndexed(iField))
printf(" Field %d is indexed\n", iField);
}
/*---------------------------------------------------------------------
* Set spatial filter
*--------------------------------------------------------------------*/
OGRLinearRing oSpatialFilter;
oSpatialFilter.setNumPoints(5);
oSpatialFilter.setPoint(0, dXMin, dYMin);
oSpatialFilter.setPoint(1, dXMax, dYMin);
oSpatialFilter.setPoint(2, dXMax, dYMax);
oSpatialFilter.setPoint(3, dXMin, dYMax);
oSpatialFilter.setPoint(4, dXMin, dYMin);
poFile->SetSpatialFilter( &oSpatialFilter );
/*---------------------------------------------------------------------
* Read/Dump objects until EOF is reached
*--------------------------------------------------------------------*/
while ( (poFeature = (TABFeature*)poFile->GetNextFeature()) != NULL )
{
// poFeature->DumpReadable(stdout);
printf("\nFeature %ld:\n", poFeature->GetFID());
poFeature->DumpMID();
poFeature->DumpMIF();
}
/*---------------------------------------------------------------------
* Cleanup and exit.
*--------------------------------------------------------------------*/
poFile->Close();
delete poFile;
return 0;
}
