Bug 182270 Sample Data issue [0001]
Description: Sample Data issue. Build number: 2.2.0.v20070413-1121 Steps to reproduce: 1. Drag a chart from Palette to Layout, first setlect type as Gantt, then change back to Bar,check the "Chart Preview" pane. Expected result: Y Axis is still of linear type. Actual result: Y Axis is of Date/Time type. Error log: N/A
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/type/BarChart.java
currentChart = ChartWithAxesImpl.create( );
			currentChart.setType( TYPE_LITERAL );
			currentChart.setSubType( sNewSubType );
			( (ChartWithAxes) currentChart ).setOrientation( newOrientation );
			currentChart.setDimension( ChartUIUtil.getDimensionType( sNewDimension ) );
			( (Axis) ( (ChartWithAxes) currentChart ).getAxes( ).get( 0 ) ).setOrientation( Orientation.HORIZONTAL_LITERAL );
			( (Axis) ( (ChartWithAxes) currentChart ).getAxes( ).get( 0 ) ).setCategoryAxis( true );
			( (Axis) ( (Axis) ( (ChartWithAxes) currentChart ).getAxes( )
					.get( 0 ) ).getAssociatedAxes( ).get( 0 ) ).setOrientation( Orientation.VERTICAL_LITERAL );
			
			currentChart.setBlock( helperModel.getBlock( ) );
			currentChart.setDescription( helperModel.getDescription( ) );
			currentChart.setGridColumnCount( helperModel.getGridColumnCount( ) );
			currentChart.setSampleData( helperModel.getSampleData( ) );
			currentChart.setScript( helperModel.getScript( ) );
			currentChart.setSeriesThickness( helperModel.getSeriesThickness( ) );
			currentChart.setUnits( helperModel.getUnits( ) );
			if ( helperModel.getInteractivity( ) != null )
			{
				currentChart.getInteractivity( )
						.setEnable( helperModel.getInteractivity( ).isEnable( ) );
				currentChart.getInteractivity( )
						.setLegendBehavior( helperModel.getInteractivity( )
								.getLegendBehavior( ) );
			}
			if ( helperModel.getType( ).equals( PieChart.TYPE_LITERAL )
					|| helperModel.getType( ).equals( MeterChart.TYPE_LITERAL ) )
			{