long OGRDXFWriterDS::WriteEntityID( VSILFILE *fpIn, long nPreferredFID )
{
CPLString osEntityID;
if( nPreferredFID != OGRNullFID )
{
osEntityID.Printf( "%X", (unsigned int) nPreferredFID );
if( !CheckEntityID( osEntityID ) )
{
aosUsedEntities.insert( osEntityID );
WriteValue( fpIn, 5, osEntityID );
return nPreferredFID;
}
}
do
{
osEntityID.Printf( "%X", nNextFID++ );
}
while( CheckEntityID( osEntityID ) );
aosUsedEntities.insert( osEntityID );
WriteValue( fpIn, 5, osEntityID );
return nNextFID - 1;
}
bool CFilterSet::CheckShape(CShape* pShape) const
{
n_assert(pShape);
return CheckMaterialType(pShape->GetMaterialType()) ||
(pShape->GetEntity() && CheckEntityID(pShape->GetEntity()->GetUniqueID())) ||
(pShape->GetRigidBody() && CheckRigidBodyID(pShape->GetRigidBody()->GetUniqueID()));
}
void OGRDXFWriterDS::ScanForEntities( const char *pszFilename,
const char *pszTarget )
{
OGRDXFReader oReader;
VSILFILE *fp;
/* -------------------------------------------------------------------- */
/* Open the file and setup a reader. */
/* -------------------------------------------------------------------- */
fp = VSIFOpenL( pszFilename, "r" );
if( fp == NULL )
return;
oReader.Initialize( fp );
/* -------------------------------------------------------------------- */
/* Add every code "5" line to our entities list. */
/* -------------------------------------------------------------------- */
char szLineBuf[257];
int nCode;
const char *pszPortion = "HEADER";
while( (nCode = oReader.ReadValue( szLineBuf, sizeof(szLineBuf) )) != -1 )
{
if( (nCode == 5 || nCode == 105) && EQUAL(pszTarget,pszPortion) )
{
CPLString osEntity( szLineBuf );
if( CheckEntityID( osEntity ) )
CPLDebug( "DXF", "Encounted entity '%s' multiple times.",
osEntity.c_str() );
else
aosUsedEntities.insert( osEntity );
}
if( nCode == 0 && EQUAL(szLineBuf,"SECTION") )
{
nCode = oReader.ReadValue( szLineBuf, sizeof(szLineBuf) );
if( nCode == 2 && EQUAL(szLineBuf,"ENTITIES") )
pszPortion = "BODY";
if( nCode == 2 && EQUAL(szLineBuf,"OBJECTS") )
pszPortion = "TRAILER";
}
}
VSIFCloseL( fp );
}
