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
	 */
	protected final int getOrientation( int iBaseOrOrthogonal )
	{
		if ( !cwa.isTransposed( ) )
		{
			return ( iBaseOrOrthogonal == IConstants.BASE || iBaseOrOrthogonal == IConstants.ANCILLARY_BASE ) ? IConstants.HORIZONTAL
					: IConstants.VERTICAL;
		}
		else
		{
			return ( iBaseOrOrthogonal == IConstants.BASE || iBaseOrOrthogonal == IConstants.ANCILLARY_BASE ) ? IConstants.VERTICAL
					: IConstants.HORIZONTAL;
		}
	}
	/**
	 * Returns a transpose of the original angle
	 * 
	 * @param dOriginalAngle
	 * @return
	 * @throws UnexpectedInputException
	 */
	public final double getTransposedAngle( double dOriginalAngle )
			throws IllegalArgumentException
	{
		if ( dOriginalAngle >= 0 && dOriginalAngle <= 90 )
		{
			return -( 90 - dOriginalAngle );
		}
		else if ( dOriginalAngle < 0 && dOriginalAngle >= -90 )