Bug 212291 SWT Chart render engine always uses 96 DPI(Display) resolution
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/PlotWithAxes.java
}
	/**
	 * @return
	 */
	public final double getHorizontalSpacingInPixels( )
	{
		return dXAxisPlotSpacing;
	}
	/**
	 * @return
	 */
	public final double getVerticalSpacingInPixels( )
	{
		return dYAxisPlotSpacing;
	}
	/**
	 * This method computes the entire chart within the given bounds. If the
	 * dataset has changed but none of the axis attributes have changed, simply
	 * re-compute without 'rebuilding axes'.
	 * 
	 * @param bo
	 * 
	 */
	public abstract void compute( Bounds bo ) throws ChartException,
			IllegalArgumentException;
	/**
	 * @param sdOrthogonal
	 * @param seOrthogonal
	 * @return
	 * @throws ChartException