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
	 */
	public final Location3D getLocation3D( )
	{
		if ( lo instanceof Location3D )
		{
			return (Location3D) lo;
		}
		return null;
	}
	/**
	 * Returns the index of current DataPointHints.
	 * 
	 * @return
	 */
	public final int getIndex( )
	{
		return index;
	}
	/**
	 * Returns the size value of current DataPointHintes.
	 * 
	 * @return
	 */
	public final double getSize( )
	{
		return dSize[0];
	}
	/**