Bug 212371 [Regression] Auto-scale does not work correctly and gridline is not shown anymore when run the attached java file [13]
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/AutoScale.java
public final double[] getEndPoints( )
	{
		return new double[]{
				dStart, dEnd
		};
	}
	/**
	 * 
	 * @param _dStart
	 * @param _dEnd
	 */
	final void setEndPoints( double _dStart, double _dEnd )
	{
		if ( _dStart != -1 )
		{
			dStart = _dStart;
		}
		if ( _dEnd != -1 )
		{
			dEnd = _dEnd;
		}
		if ( atcTickCoordinates != null )
		{
			atcTickCoordinates.setEndPoints( dStart, dEnd );
		}
	}
	/**
	 * Computes tick count
	 * 
	 * @return tick count