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
{
				start = i;
				x = liha[i].getLeft( );
				maxWidth = liha[i].getWidth( );
			}
			else if ( liha[i].getLeft( ) != x )
			{
				for ( int j = start; j < i; j++ )
				{
					rt.put( liha[j], new Double( maxWidth ) );
				}
				start = i;
				x = liha[i].getLeft( );
				maxWidth = liha[i].getWidth( );
			}
			else
			{
				maxWidth = Math.max( maxWidth, liha[i].getWidth( ) );
			}
		}
		for ( int j = Math.max( start, 0 ); j < liha.length; j++ )
		{
			rt.put( liha[j], new Double( maxWidth ) );
		}
		return rt;
	}
	/**
	 * Internally provided to render a single legend entry
	 * 
	 * @param ipr