Bug 212370 [Regression] Negative value can not be shown both in chart builder and when preview [13]
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/PlotWith2DAxes.java
{
				
				if ( aax.anyOverlayPositionedAt( IConstants.MIN ) )
				{
					scBase.computeAxisStartEndShifts( ids,
							oaxBase.getLabel( ),
							HORIZONTAL,
							oaxBase.getLabelPosition( ),
							aax );
					{
						double dLeftThreshold = bo.getLeft( );
						double dStart = scBase.getStart( );
						final double dEndShift = scBase.getEndShift( );
						final double dStartShift = scBase.getStartShift( );
						if ( dStart - dStartShift > dLeftThreshold )
						{
							dStart -= dStartShift;
							final double dEnd = scBase.getEnd( ) + dEndShift;
							scBase.computeTicks( ids,
									oaxBase.getLabel( ),
									oaxBase.getLabelPosition( ),
									HORIZONTAL,
									dStart,
									dEnd,
									false,
									null );
						}
					}
				}
			}