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 final static String FIXED_STACKED_SERIES_LOCATION_KEY = "fixed_stacked_series_location_key"; 
	/**
	 * This key is to reference the fixed index value of last stacked series.
	 */
	protected final static String FIXED_STACKED_SERIES_INDEX_KEY = "fixed_stacked_series_index_key"; 
	
	
	protected final static String STACKED_SERIES_SIZE_KEY = "stacked_series_size_key"; 
	protected static final String TIMER = "T"; 
	protected ISeriesRenderingHints srh;
	protected IDisplayServer xs;
	protected IDeviceRenderer ir;
	protected DeferredCache dc;
	protected Chart cm;
	protected Object oComputations;
	protected Series se;
	protected SeriesDefinition sd;
	/**
	 * All renders associated with the chart provided for convenience and
	 * inter-series calculations
	 */
	protected BaseRenderer[] brna;
	/**
	 * Identifies the series sequence # in the list of series renders
	 */
	protected transient int iSeriesIndex = -1;
	/**
	 * Identifies the series count in the list of series renders
	 */
	protected transient int iSeriesCount = 1;