Bug 206093 bar chart: title of y axis is not aligned according to the y axe.
Build ID: v20070924-0630 Steps To Reproduce: 1. Create a bar chart 2. For y axis enter a Title and set the alignment to center 3. See the chart, the y axis title is not aligned according to the y axe; it is center aligned with the height of the chart. More information: see attached chart image example: the first image at the top is how Birt aligned the y axis label and the second image at the bottom is the proposition of aligment according to the y axe
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderHelper.java
l3dre = null;
		bTickBetweenCategories = axModel.getScale( ).isTickBetweenCategories( );
		bLabelWithinAxes = ax.getModelAxis( ).isLabelWithinAxes( );
	}
	private RunTimeContext getRunTimeContext( )
	{
		return renderer.getRunTimeContext( );
	}
	private void processTrigger( Trigger tg, StructureSource source )
	{
		renderer.processTrigger( tg, source );
	}
	final class ComputationContext
	{
		
		boolean isVertical;
		double dTick1, dTick2;
		
		double dX;
		double y3d;
		
		double dY;
		double x3d, z3d;
		public ComputationContext( boolean isVertical )
		{
			this.isVertical = isVertical;
		}
	}
	
	interface IAxisTypeComputation