Bug 168839 Chart Legend Toggle Visibility does not work correctly for Pie chart in SVG[0001]
Description: Chart Legend Toggle Visibility does not work correctly . Build number: 2.1.2.v20061221-0710 Steps to reproduce: 1. Preview the attached design file. 2. Click the legend. Expected result: Toggle Visibility works correctly. Actual result: Pie slice of different color disappears when being click. Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/DataPointHints.java
return getBaseDisplayValue( fsBase );
	}
	/**
	 * Returns the series display value of current DataPointHintes.
	 * 
	 * @return
	 */
	public final String getSeriesDisplayValue( )
	{
		return getSeriesDisplayValue( fsSeries );
	}
	/**
	 * Returns the percentile orthogonal display value of current
	 * DataPointHintes.
	 * 
	 * @return
	 */
	public final String getPercentileOrthogonalDisplayValue( )
	{
		return getPercentileOrthogonalDisplayValue( fsPercentile );
	}
	/**
	 * Returns the base display value of current DataPointHintes using given
	 * format specifier.
	 * 
	 * @return
	 */
	private final String getBaseDisplayValue( FormatSpecifier fs )
	{
		if ( oBaseValue == null )