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
Trigger buildinTg = null;
			if ( cm.getInteractivity( ) != null )
			{
				boolean customed = false;
				switch ( cm.getInteractivity( ).getLegendBehavior( ).getValue( ) )
				{
					case LegendBehaviorType.HIGHLIGHT_SERIE :
						for ( Iterator itr = elTriggers.iterator( ); itr.hasNext( ); )
						{
							tg = (Trigger) itr.next( );
							if ( tg.getCondition( ) == TriggerCondition.ONCLICK_LITERAL
									|| tg.getAction( ).getType( ) == ActionType.HIGHLIGHT_LITERAL )
							{
								customed = true;
							}
						}
						if ( !customed )
						{
							buildinTg = TriggerImpl.create( TriggerCondition.ONCLICK_LITERAL,
									ActionImpl.create( ActionType.HIGHLIGHT_LITERAL,
											SeriesValueImpl.create( String.valueOf( se.getSeriesIdentifier( ) ) ) ) );
						}
						break;
					case LegendBehaviorType.TOGGLE_SERIE_VISIBILITY :
						for ( Iterator itr = elTriggers.iterator( ); itr.hasNext( ); )
						{
							tg = (Trigger) itr.next( );
							if ( tg.getCondition( ) == TriggerCondition.ONCLICK_LITERAL
									|| tg.getAction( ).getType( ) == ActionType.TOGGLE_VISIBILITY_LITERAL )
							{