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
rt = Math.floor( rt );
			}
			return rt;
		}
		else if ( iUnit == Calendar.MINUTE )
		{
			double rt = ( l1 - l2 ) / MILLIS_IN_MINUTE;
			if ( trimBelow )
			{
				rt = Math.floor( rt );
			}
			return rt;
		}
		else if ( iUnit == Calendar.HOUR_OF_DAY )
		{
			double rt = ( l1 - l2 ) / MILLIS_IN_HOUR;
			if ( trimBelow )
			{
				rt = Math.floor( rt );
			}
			return rt;
		}
		else if ( iUnit == Calendar.DATE )
		{
			double rt = ( l1 - l2 ) / MILLIS_IN_DAY;
			if ( trimBelow )
			{
				rt = Math.floor( rt );
			}
			return rt;