Bug 171533 Pie chart legends are truncated
This only happens with a title for the legend. There is a small bug in the layout algorithm that causes the clipping in such case.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/LegendBuilder.java
try
				{
					bb = Methods.computeBox( xs, IConstants.ABOVE, la, 0, 0 );
				}
				catch ( IllegalArgumentException uiex )
				{
					throw new ChartException( ChartEnginePlugin.ID,
							ChartException.RENDERING,
							uiex );
				}
				dW = bb.getWidth( );
				double dFHeight = bb.getHeight( );
				double dExtraHeight = 0;
				String extraText = null;
				double dExceedingSpace = dExtraWidth
						+ dW
						+ legendData.dHorizonalReservedSpace
						- legendData.dAvailableWidth
						- legendData.dSafeSpacing;
				double[] newMetrics = checkEllipsisText( dExceedingSpace,
						dW,
						xs,
						itm,
						la,
						legendData.dEllipsisWidth,
						legendData.maxWrappingSize );
				if ( newMetrics != null )
				{
					dW = newMetrics[0];
					dFHeight = newMetrics[1];