Bug 192585 The Tube/Cone/Pyramid Chart Y Axis type will be Date/Time after change type to Gantt then change back [0001]
Description: The Tube/Cone/Pyramid Chart Y Axis type will be Date/Time after change type to Gantt then change back Build number: 2.2.0.v20070614-0939 Steps to reproduce: 1. Drag a chart from the Palette to the Layout. 2. Select chart type as Gantt, then change to Tube/Cone/Pyramid. Expected result: The Chart in the preview pane is the same as the one when chart builder first opened. Actual result: Their Y Axis type change to Date/Time(see the screenshot). Error log: N/A
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/type/GanttChart.java
.equals( getDimensionFor( sNewDimension ) ) )
		{
			currentChart.setDimension( getDimensionFor( sNewDimension ) );
		}
		return currentChart;
	}
	private Series getConvertedSeries( Series series, int seriesIndex )
	{
		
		if ( series.getClass( )
				.getName( )
				.equals( "org.eclipse.birt.chart.model.component.impl.SeriesImpl" ) ) 
		{
			return series;
		}
		GanttSeries ganttseries = (GanttSeries) ChartCacheManager.getInstance( )
				.findSeries( GanttSeriesImpl.class.getName( ), seriesIndex );
		if ( ganttseries == null )
		{
			ganttseries = (GanttSeries) GanttSeriesImpl.create( );
		}
		
		ChartUIUtil.copyGeneralSeriesAttributes( series, ganttseries );
		return ganttseries;
	}
	private SampleData getConvertedSampleData( SampleData currentSampleData,
			AxisType axisType )
	{
		
		EList bsdList = currentSampleData.getBaseSampleData( );