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
* 
	 * @param _oBaseValue
	 *            Category data
	 * @param _oOrthogonalValue
	 *            Value data
	 * @param _sSeriesValue
	 *            Value Series Name
	 * @param _dp
	 *            DataPoint for combined value retrieval
	 * @param _fsBase
	 *            Category Format Specifier
	 * @param _fsOrthogonal
	 *            Value Format Specifier
	 * @param _fsSeries
	 *            Value Series Name Format Specifier
	 * @param _idx
	 *            Category Series index
	 * @param _lo
	 *            Location
	 * @param _dSize
	 *            Size
	 * @param _rtc
	 *            Runtime Context
	 * 
	 */
	public DataPointHints( Object _oBaseValue, Object _oOrthogonalValue,
			Object _oSeriesValue, Object _oPercentileValue, DataPoint _dp,
			FormatSpecifier _fsBase, FormatSpecifier _fsOrthogonal,
			FormatSpecifier _fsSeries, FormatSpecifier _fsPercentile, int _idx,
			Location _lo, double _dSize, RunTimeContext _rtc )