Bug 179898 Date/Time type X-Axis labels are not correct when set grouping [0001]
Description: Date/Time type X-Axis labels are not correct when set grouping. Build number: 2.2.0.v20070328-0630 Steps to reproduce: 1. New a Bar Chart with Date/Time type X-Axis with values as 4/1/2005 10:12 AM 4/1/2005 11:15 AM 4/1/2005 7:15 AM 2. Enable X Series Grouping, set Type as "DateTime", Unit as "Day", Interval as 1, and Aggregate Expression as "Sum". 3. Preview. Expected result: X-Axis label should be "4/1/2005" Actual result: X-Axis label is "2005" Error log: N/A
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/util/CDateTime.java
}
		}
		return Calendar.YEAR;
	}
	/**
	 * Computes the difference between two given datetime values as a fraction
	 * for the requested field.
	 * 
	 * @param cdt1
	 *            The first datetime value
	 * @param cdt2
	 *            The second datetime value
	 * @param iUnit
	 *            The field with respect to which the difference is being
	 *            computed as a fraction
	 * 
	 * @return The fractional difference between the two specified datetime
	 *         values
	 */
	public static final double computeDifference( CDateTime cdt1,
			CDateTime cdt2, int iUnit )
	{
		return computeDifference( cdt1, cdt2, iUnit, false );
	}
	/**
	 * Computes the difference between two given datetime values as a fraction
	 * for the requested field.
	 * 
	 * @param cdt1
	 *            The first datetime value