Bug 176582 "Show Lines as Curves" does not work correctly for Area Chart [0001]
Description: "Show Lines as Curves" does not work correctly for Area Chart. Build number: 2.2.0.v20070307-1128 Steps to reproduce: 1. New a Area Chart. 2. In "Format Chart" tab, select Series->Value (Y) Series, tick and untick "Show Lines as Curves" checkbox. Expected result: Null value point e is treated the same when tick and untick "Show Lines as Curves" checkbox. Actual result: Null value point e is treated differently (see the screenshot). Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/CurveRenderer.java
sideColor = fillColor.darker( );
		}
		else
		{
			fillColor = lia.getColor( );
			tapeColor = lia.getColor( ).brighter( );
			sideColor = lia.getColor( ).darker( );
		}
		if ( bTranslucent )
		{
			fillColor = fillColor.translucent( );
			tapeColor = tapeColor.translucent( );
			sideColor = sideColor.translucent( );
		}
	}
	/**
	 * Fixes null values with the coordinates in baseline.
	 * 
	 * @param ll
	 * @param boClientArea
	 * @return
	 */
	private static Location[] fixNull( Location[] ll, Bounds boClientArea )
	{
		List al = new ArrayList( );
		for ( int i = 0; i < ll.length; i++ )
		{
			if ( Double.isNaN( ll[i].getX( ) ) )
			{
				ll[i].setX( boClientArea.getLeft( ) );