Bug 208373 Auto resize Chart to have a single axis without blank
When Chart is within Cross tab, chart axis image should have a single axis only, but there may be much blank in other area. Chart engine should auto resize the image to have the axis with fit size. Meanwhile, report engine should not set size for chart image.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/factory/Generator.java
catch ( RuntimeException ex )
			{
				throw new ChartException( ChartEnginePlugin.ID,
						ChartException.GENERATION,
						ex );
			}
			logger.log( ILogger.INFORMATION,
					Messages.getString( "info.compute.elapsed.time.without.axes", 
							new Object[]{
								new Long( System.currentTimeMillis( ) - lTimer )
							},
							gcs.getRunTimeContext( ).getULocale( ) ) );
		}
		ScriptHandler.callFunction( gcs.getRunTimeContext( ).getScriptHandler( ),
				ScriptHandler.AFTER_COMPUTATIONS,
				cm,
				gcs.getComputations( ) );
	}
	/**
	 * Draws a previously built chart using the specified device renderer into a
	 * target output device.
	 * 
	 * @param idr
	 *            A device renderer that determines the target context on which
	 *            the chart will be rendered.
	 * @param gcs
	 *            A previously built chart that needs to be rendered.
	 * 
	 * @throws ChartException
	 */