int TigerPolygon::SetModule( const char * pszModule )
{
if( !OpenFile( pszModule, "A" ) )
return FALSE;
EstablishFeatureCount();
/* -------------------------------------------------------------------- */
/* Open the RTS file */
/* -------------------------------------------------------------------- */
if( bUsingRTS )
{
if( fpRTS != NULL )
{
VSIFCloseL( fpRTS );
fpRTS = NULL;
}
if( pszModule )
{
char *pszFilename;
pszFilename = poDS->BuildFilename( pszModule, "S" );
fpRTS = VSIFOpenL( pszFilename, "rb" );
CPLFree( pszFilename );
nRTSRecLen = EstablishRecordLength( fpRTS );
}
}
return TRUE;
}
int TigerPolygonCorrections::SetModule( const char * pszModule )
{
if( !OpenFile( pszModule, FILE_CODE ) )
return FALSE;
EstablishFeatureCount();
return TRUE;
}
int TigerZeroCellID::SetModule( const char * pszModule )
{
if( !OpenFile( pszModule, FILE_CODE ) )
return FALSE;
EstablishFeatureCount();
return TRUE;
}
int TigerAreaLandmarks::SetModule( const char * pszModule )
{
if( !OpenFile( pszModule, FILE_CODE ) )
return FALSE;
EstablishFeatureCount();
return TRUE;
}
int TigerFileBase::SetModule( const char * pszModuleIn )
{
if (m_pszFileCode == NULL)
return FALSE;
if( !OpenFile( pszModuleIn, m_pszFileCode ) )
return FALSE;
EstablishFeatureCount();
return TRUE;
}
int TigerCompleteChain::SetModule( const char * pszModule )
{
if( !OpenFile( pszModule, "1" ) )
return FALSE;
EstablishFeatureCount();
/* -------------------------------------------------------------------- */
/* Is this a copyright record inserted at the beginning of the */
/* RT1 file by the folks at GDT? If so, setup to ignore the */
/* first record. */
/* -------------------------------------------------------------------- */
nRT1RecOffset = 0;
if( pszModule )
{
char achHeader[10];
VSIFSeekL( fpPrimary, 0, SEEK_SET );
VSIFReadL( achHeader, sizeof(achHeader), 1, fpPrimary );
if( EQUALN(achHeader,"Copyright",8) )
{
nRT1RecOffset = 1;
nFeatures--;
}
}
/* -------------------------------------------------------------------- */
/* Open the RT3 file */
/* -------------------------------------------------------------------- */
if( bUsingRT3 )
{
if( fpRT3 != NULL )
{
VSIFCloseL( fpRT3 );
fpRT3 = NULL;
}
if( pszModule )
{
char *pszFilename;
pszFilename = poDS->BuildFilename( pszModule, "3" );
fpRT3 = VSIFOpenL( pszFilename, "rb" );
CPLFree( pszFilename );
}
}
/* -------------------------------------------------------------------- */
/* Close the shape point file, if open and free the list of */
/* record ids. */
/* -------------------------------------------------------------------- */
if( fpShape != NULL )
{
VSIFCloseL( fpShape );
fpShape = NULL;
}
CPLFree( panShapeRecordId );
panShapeRecordId = NULL;
/* -------------------------------------------------------------------- */
/* Try to open the RT2 file corresponding to this RT1 file. */
/* -------------------------------------------------------------------- */
if( pszModule != NULL )
{
char *pszFilename;
pszFilename = poDS->BuildFilename( pszModule, "2" );
fpShape = VSIFOpenL( pszFilename, "rb" );
if( fpShape == NULL )
{
if( nRT1RecOffset == 0 )
CPLError( CE_Warning, CPLE_OpenFailed,
"Failed to open %s, intermediate shape arcs will not be available.\n",
pszFilename );
}
else
panShapeRecordId = (int *)CPLCalloc(sizeof(int),GetFeatureCount());
CPLFree( pszFilename );
}
return TRUE;
}
