Bug 210054 Axis labels will disappear when only select the first series as visible.
Description: Axis labels will disappear when only select the first series to display. build version: 2.3 v20071115-0800 steps to reproduce: 1. New a report. 2. New a datasource and dataset. 3. New a bar chart. 4. On Select Data page, create two value series. 5. Switch to Format Chart page, select Series. 6. Uncheck the two Visiable check box to hide the two series. 7. Check the first Visible check box to display the first series. Expected result: The Axis lables should not disappear. Actual result: The Axis lables disappear both in live preview and in preview.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
return oComputations;
	}
	/**
	 * @return Returns device renderer associated with current renderer.
	 */
	public final IDeviceRenderer getDevice( )
	{
		return ir;
	}
	/**
	 * Renders a 2D or extruded 2D plane as necessary for a given front surface
	 * polygon. Takes into account the correct z-ordering of each plane and
	 * applies basic lighting. This convenience method may be used by series
	 * type rendering extensions if needed.
	 * 
	 * @param ipr
	 *            A handle to the primitive rendering device
	 * @param oSource
	 *            The object wrapped in the polygon rendering event
	 * @param loaFront
	 *            The co-ordinates of the front face polygon
	 * @param f
	 *            The fill color for the front face
	 * @param lia
	 *            The edge color for the polygon
	 * @param dSeriesThickness
	 *            The thickness or the extrusion level (for 2.5D or 3D)
	 * 
	 * @throws RenderingException
	 */