Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
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