Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderer.java
renderLabel( StructureSource.createSeries( getSeries( ) ),
						TextRenderEvent.RENDER_TEXT_IN_BLOCK,
						lb,
						Position.RIGHT_LITERAL,
						LocationImpl.create( bb.getLeft( ), bb.getTop( ) ),
						BoundsImpl.create( bb.getLeft( ),
								bb.getTop( ),
								bb.getWidth( ),
								bb.getHeight( ) ),
								fDeferredCacheManager.getLastDeferredCache( ) );
			}
			ScriptHandler.callFunction( getRunTimeContext( ).getScriptHandler( ),
					ScriptHandler.AFTER_DRAW_FITTING_CURVE,
					curve,
					getRunTimeContext( ).getScriptContext( ) );
			getRunTimeContext( ).notifyStructureChange( IStructureDefinitionListener.AFTER_DRAW_FITTING_CURVE,
					curve );
		}
	}
	/**
	 * 
	 * @param xa
	 *            xa must be sorted from smallest to largest.
	 * @param ya
	 * @param center
	 * @param width