Bug 134671 Legend title is displayed incorrectly.
Legend title is displayed incorrectly. Steps: 1.Import the attached report design file 2.Preview Actual Results: 1.Legend title is "Company", but displayed as "=Company" Expected Results: 1.Legend title is displayed correctly.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
continue;
			}
			al.add( obj );
		}
		return al;
	}
	/**
	 * Filters the Null or invalid entry(contains NaN value) from the array.
	 * 
	 * @param ll
	 * @return
	 */
	protected static Location[] filterNull( Location[] ll )
	{
		ArrayList al = new ArrayList( );
		for ( int i = 0; i < ll.length; i++ )
		{
			if ( Double.isNaN( ll[i].getX( ) ) || Double.isNaN( ll[i].getY( ) ) )
			{
				continue;
			}
			al.add( ll[i] );
		}
		if ( ll instanceof Location3D[] )
		{
			return (Location3D[]) al.toArray( new Location3D[0] );
		}
		else
		{
			return (Location[]) al.toArray( new Location[0] );