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
case Anchor.SOUTH_EAST :
					case Anchor.NORTH_EAST :
						dX = bo.getLeft( ) + bo.getWidth( ) - sz.getWidth( );
						break;
					default : 
						dX = bo.getLeft( )
								+ ( bo.getWidth( ) - sz.getWidth( ) )
								/ 2;
						break;
				}
			}
			else
			{
				dX = bo.getLeft( ) + ( bo.getWidth( ) - sz.getWidth( ) ) / 2;
				dY = bo.getTop( ) + ( bo.getHeight( ) - sz.getHeight( ) ) / 2;
			}
		}
		else
		{
			
			
			dX = bo.getLeft( );
			dY = bo.getTop( );
			sz = SizeImpl.create( bo.getWidth( ), bo.getHeight( ) );
		}
		
		final LegendLayoutHints lilh = rtc.getLegendLayoutHints( );
		if ( lilh == null )
		{
			throw new ChartException( ChartEnginePlugin.ID,