Bug 193467 URL hyperlink can't work in chart viewer
chart/org.eclipse.birt.chart.viewer/src/org/eclipse/birt/chart/viewer/sample/SampleHelper.java
* Creates a sample chart model
	 * 
	 * @return chart model
	 */
	public static Chart createSampleChart( )
	{
		ChartWithAxes cwaBar = ChartWithAxesImpl.create( );
		cwaBar.setDimension( ChartDimension.TWO_DIMENSIONAL_WITH_DEPTH_LITERAL );
		
		cwaBar.getBlock( ).setBackground( ColorDefinitionImpl.WHITE( ) );
		cwaBar.getBlock( ).getOutline( ).setVisible( true );
		Plot p = cwaBar.getPlot( );
		p.getClientArea( ).setBackground( ColorDefinitionImpl.create( 255,
				255,
				225 ) );
		p.getOutline( ).setVisible( false );
		
		cwaBar.getTitle( ).getLabel( ).getCaption( ).setValue( "Sample Chart" ); 
		
		Legend lg = cwaBar.getLegend( );
		lg.getText( ).getFont( ).setSize( 16 );
		lg.setItemType( LegendItemType.CATEGORIES_LITERAL );
		
		Axis xAxisPrimary = cwaBar.getPrimaryBaseAxes( )[0];
		xAxisPrimary.setType( AxisType.TEXT_LITERAL );
		xAxisPrimary.getMajorGrid( ).setTickStyle( TickStyle.BELOW_LITERAL );
		xAxisPrimary.getOrigin( ).setType( IntersectionType.MIN_LITERAL );
		xAxisPrimary.getTitle( ).setVisible( true );
		
		Axis yAxisPrimary = cwaBar.getPrimaryOrthogonalAxis( xAxisPrimary );