getObjects获取块的函数

admin1

bool getObjects( ACHAR *xRefName, ACHAR *layer, std::vector<AcDbEntity*> *objects, AcGeMatrix3d *transform )
{
        Acad::ErrorStatus errorStatus;
        AcDbDatabase *database = acdbHostApplicationServices()->workingDatabase();
        AcDbBlockTable *blockTable = NULL;
        AcDbBlockTableRecord *modelBlockTableRecord = NULL;
        AcDbBlockTableRecord *blockTableRecord = NULL;
        AcDbDatabase *xRefDatabase = NULL;
        const ACHAR *xRefPath = NULL;
        AcDbDatabase *xRefDWGDatabase = NULL;
        AcDbBlockTable *xRefBlockTable = NULL;
        AcDbBlockTableRecord *xRefBlockTableRecord = NULL;

        //Get the block table for our database
        errorStatus = database->getBlockTable(blockTable, AcDb::kForRead);
        if( errorStatus != Acad::eOk )
        {
                acutPrintf(L"\nError getting block table %s", acadErrorStatusText( errorStatus ) );     
                return false;
        }
        //Get the table record in model space
        errorStatus = blockTable->getAt(ACDB_MODEL_SPACE,modelBlockTableRecord,AcDb::kForRead);
        if( errorStatus != Acad::eOk )
        {
                acutPrintf(L"\nError getting model space block table record %s", acadErrorStatusText( errorStatus ) );     
                blockTable->close();
                return false;
        }
        //Get the block table record for the external reference
        errorStatus = blockTable->getAt( xRefName, blockTableRecord, AcDb::kForRead );
        if( errorStatus != Acad::eOk )
        {
                acutPrintf(L"\nError could not get xref %s %s", xRefName, acadErrorStatusText( errorStatus ) );
                modelBlockTableRecord->close();
                blockTable->close();
                return false;
        }

        xRefDatabase = blockTableRecord->xrefDatabase(true);

        if( xRefDatabase == NULL )
        {
                acutPrintf(L"\nCould not get external reference database" );
                modelBlockTableRecord->close();
                blockTable->close();
                blockTableRecord->close();
                return false;
        }
        //Get path for external reference dwg file
        xRefPath = acdbOriginalXrefFullPathFor( xRefDatabase );
        if( xRefDatabase == NULL )
        {
                acutPrintf(L"\nCould not get external reference path" );
                modelBlockTableRecord->close();
                blockTable->close();
                blockTableRecord->close();
                return false;
        }
        //Get database for the external reference drawing
        xRefDWGDatabase = new AcDbDatabase(Adesk::kFalse);
        errorStatus = xRefDWGDatabase->readDwgFile(xRefPath);
        if( errorStatus != Acad::eOk )
        {
                acutPrintf(L"\nError could not read xref file %s", acadErrorStatusText( errorStatus ));     
                modelBlockTableRecord->close();
                blockTable->close();
                blockTableRecord->close();
                return false;
        }
        //Get the block table for the open model reference file
        errorStatus = xRefDWGDatabase->getBlockTable( xRefBlockTable, AcDb::kForRead );
        if( errorStatus != Acad::eOk )
        {
                acutPrintf(L"\nError could not load xref block table %s", acadErrorStatusText( errorStatus ));     
                modelBlockTableRecord->close();
                blockTable->close();
                blockTableRecord->close();
                return false;
        }

        //Get the definition for the block in the the external reference
        errorStatus = xRefBlockTable->getAt( L"TRINA 335W MODULE", xRefBlockTableRecord, AcDb::kForRead );
        if( errorStatus != Acad::eOk )
        {
                acutPrintf(L"\nError could not get xref block table record %s", acadErrorStatusText( errorStatus ));     
                modelBlockTableRecord->close();
                blockTable->close();
                blockTableRecord->close();
                xRefBlockTable->close();
                return false;
        }

        AcDbObjectIdArray blockIds;
        errorStatus = xRefBlockTableRecord->getBlockReferenceIds( blockIds );
        if( errorStatus != Acad::eOk )
        {
                acutPrintf(L"\nError could not get xref block ids %s", acadErrorStatusText( errorStatus ));     
                modelBlockTableRecord->close();
                blockTable->close();
                blockTableRecord->close();
                xRefBlockTable->close();
                xRefBlockTableRecord->close();
                return false;
        }

        for( int i = 0; i < blockIds.length(); i++ )
        {
                AcDbEntity *ent = NULL;
                acdbOpenObject( ent, blockIds.at(i), AcDb::kForRead );
                if( ent != NULL )
                {
                        objects->push_back( ent );
                }               
        }

        modelBlockTableRecord->close();
        blockTable->close();
        blockTableRecord->close();
        xRefBlockTable->close();
        xRefBlockTableRecord->close();
        return true;
}