Bug 194727 Pyramid chart with 2d+ dimension should like a pyramid
Pyramid chart in 2d+ dimension should like a pyramid, rather than a triangle with depth effect. In addition, pyramid in 2d+ should like itself in 3d as well. Take a look at attached screenshot to compare the charts.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
bo = bo.adjustedInstance( pwoa.getCellInsets( ) );
		}
		else if ( obj instanceof PlotWithAxes )
		{
			PlotWithAxes pwa = (PlotWithAxes) obj;
			bo = BoundsImpl.copyInstance( pwa.getPlotBounds( ) );
			bo = bo.adjustedInstance( pwa.getPlotInsets( ) );
		}
		return bo;
	}
	/**
	 * Returns the bounds of the plot area, NOTE this bounds has reduced the
	 * insets.
	 * 
	 * @return
	 */
	protected final Bounds getPlotBounds( )
	{
		Object obj = getComputations( );
		Bounds bo = null;
		if ( obj instanceof PlotWithoutAxes )
		{
			PlotWithoutAxes pwoa = (PlotWithoutAxes) obj;
			bo = BoundsImpl.copyInstance( pwoa.getBounds( ) );
			bo = bo.adjustedInstance( pwoa.getCellInsets( ) );
		}
		else if ( obj instanceof PlotWithAxes )
		{
			PlotWithAxes pwa = (PlotWithAxes) obj;
			bo = BoundsImpl.copyInstance( pwa.getPlotBounds( ) );