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/BaseRenderer.java
protected transient RunTimeContext rtc = null;
	private static ILogger logger = Logger.getLogger( "org.eclipse.birt.chart.engine/render" ); 
	/**
	 * The internal constructor that must be defined as public
	 * 
	 * @param _ir
	 * @param _cm
	 */
	public BaseRenderer( )
	{
	}
	/**
	 * Sets the context infomation for current renderer.
	 * 
	 * @param _cm
	 * @param _o
	 * @param _se
	 * @param _ax
	 * @param _sd
	 */
	public void set( Chart _cm, Object _oComputation, Series _se,
			SeriesDefinition _sd )
	{
		cm = _cm;
		oComputations = _oComputation;
		se = _se;
		sd = _sd;
	}
	/**
	 * Sets the deferred cache used by current renderer.