Bug 209464 Drill-through link should pass svg parameter value[0002]
Description: Drill-through link should pass svg parameter value Build number:2.3.0.v20071112 Steps to reproduce: 1. Insert a chart. 2. Define drill-through link in chart interactivity which link to the current report. 3. In preference, enable svg. 4. Preview and click the link. Expected result: Display chart with same type after drill-through link Actual result: In preview page, chart is svg chart.After drill-through link, the same chart in the linked page has gray background which means the chart is converted to non-svg image. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
* @param isExportDataType
	 * @throws RemoteException
	 */
	public void extractData( IReportDocument document, String resultSetName,
			Collection columns, Locale locale, OutputStream outputStream,
			String encoding, char sep, boolean isExportDataType )
			throws RemoteException
	{
		assert document != null;
		assert resultSetName != null && resultSetName.length( ) > 0;
		assert columns != null && !columns.isEmpty( );
		String[] columnNames = new String[columns.size( )];
		Iterator iSelectedColumns = columns.iterator( );
		for ( int i = 0; iSelectedColumns.hasNext( ); i++ )
		{
			columnNames[i] = ParameterAccessor
					.htmlDecode( (String) iSelectedColumns.next( ) );
		}
		IDataExtractionTask dataTask = null;
		IExtractionResults result = null;
		IDataIterator iData = null;
		try
		{
			dataTask = engine.createDataExtractionTask( document );
			dataTask.selectResultSet( resultSetName );
			dataTask.selectColumns( columnNames );
			dataTask.setLocale( locale );
			result = dataTask.extract( );
			if ( result != null )
			{