Bug 211773 Legend entries overlap
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
{
					throw new ChartException( ChartEnginePlugin.ID,
							ChartException.RENDERING,
							uiex );
				}
				double dH = bb.getHeight( );
				double dFHeight = dH;
				double dFWidth = bb.getWidth( );
				double dEHeight = 0;
				String extraText = null;
				dDeltaWidth = legendData.insCa.getLeft( )
						+ ( 3 * legendData.dItemHeight )
						/ 2
						+ dFWidth
						+ legendData.insCa.getRight( )
						+ legendData.dHorizontalSpacing;
				if ( cm.getLegend( ).isShowValue( ) )
				{
					DataSetIterator dsiBase = createDataSetIterator( se, cm );
					
					if ( dsiBase.hasNext( ) )
					{
						obj = dsiBase.next( );
						
						while ( !isValidValue( obj ) && dsiBase.hasNext( ) )
						{
							obj = dsiBase.next( );
						}
						String valueText = String.valueOf( obj );
						if ( fs != null )