Bug 214197 [Regression] Auto scale does not work correctly [13]
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/AutoScale.java
}
		}
	}
	/**
	 * Updates AutoScale by checking step size and step number
	 * 
	 * @param sc
	 * @param oStep
	 * @param oStepNumber
	 * @param rtc
	 * @throws ChartException
	 */
	public static void setStepToScale( AutoScale sc, Object oStep,
			Integer oStepNumber, RunTimeContext rtc ) throws ChartException
	{
		
		if ( oStep != null )
		{
			sc.oStep = oStep;
			sc.bStepFixed = true;
			
			if ( ( (Double) sc.oStep ).doubleValue( ) <= 0 )
			{
				throw new ChartException( ChartEnginePlugin.ID,
						ChartException.GENERATION,
						"exception.invalid.step.size", 
						new Object[]{
							oStep
						},
						Messages.getResourceBundle( rtc.getULocale( ) ) );