bo = ( (PrimitiveRenderEvent) pre ).getBounds( );
bo = pre.getBounds( );
	public int compareTo( Object o )	{		try		{			Bounds bo = null;			if ( this.isModel( ) )			{				if ( o instanceof PrimitiveRenderEvent )				{					bo = ( (PrimitiveRenderEvent) o ).getBounds( );				}				else if ( o instanceof WrappedInstruction )				{					bo = ( (WrappedInstruction) o ).getBounds( );				}			}			else			{				bo = ( (PrimitiveRenderEvent) pre ).getBounds( );			}			return dc.isTransposed( ) ? PrimitiveRenderEvent.compareTransposed( getBounds( ),					bo )					: PrimitiveRenderEvent.compareRegular( getBounds( ), bo );		}		catch ( Exception ex )		{			throw new RuntimeException( ex );		}	}