Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
return false;
		}
		for ( int i = 1; i < iSeriesCount; i++ )
		{
			BaseRenderer renderer = getRenderer( i );
			if ( renderer.getSeries( ).isVisible( ) )
			{
				return i == iSeriesIndex;
			}
		}
		return false;
	}
	protected final boolean isLastVisibleSeries( )
	{
		if ( iSeriesIndex == 0 )
		{
			return false;
		}
		for ( int i = iSeriesCount - 1; i > 0; i-- )
		{
			BaseRenderer renderer = getRenderer( i );
			if ( renderer.getSeries( ).isVisible( ) )
			{
				return i == iSeriesIndex;
			}
		}
		return false;
	}
}