Bug 177483 [Regression] The value in chart area and legend area are different for Meter chart [0001]
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
throw new ChartException( ChartEnginePlugin.ID,
					ChartException.GENERATION,
					"exception.legend.orientation.horzvert", 
					Messages.getResourceBundle( xs.getULocale( ) ) );
		}
		if ( !lg.isSetDirection( ) )
		{
			throw new ChartException( ChartEnginePlugin.ID,
					ChartException.GENERATION,
					"exception.legend.direction.tblr", 
					Messages.getResourceBundle( xs.getULocale( ) ) );
		}
		
		final Orientation orientation = lg.getOrientation( );
		final Direction direction = lg.getDirection( );
		final Position lgPosition = lg.getPosition( );
		final boolean bPaletteByCategory = ( lg.getItemType( ).getValue( ) == LegendItemType.CATEGORIES );
		Label la = LabelImpl.create( );
		la.setCaption( TextImpl.copyInstance( lg.getText( ) ) );
		ClientArea ca = lg.getClientArea( );
		LineAttributes lia = ca.getOutline( );
		legendData.dSeparatorThickness = lia.getThickness( );
		la.getCaption( ).setValue( "X" ); 
		final ITextMetrics itm = xs.getTextMetrics( la );
		legendData.dItemHeight = itm.getFullHeight( );
		la.getCaption( ).setValue( ELLIPSIS_STRING );
		itm.reuse( la );
		legendData.dEllipsisWidth = itm.getFullWidth( );
		legendData.dScale = xs.getDpiResolution( ) / 72d;
		legendData.insCa = ca.getInsets( ).scaledInstance( legendData.dScale );