[rrd-users] Graphing data by layers

[Jose Oscar Olivares Ocampo/Mexico/Contr/IBM]

    Hello everyone, I am a beginner user of the tool.

I have 4 values on an RRD file, which I am trying to graph into a single 
chart.
I want all these values to be AREAs.

My problem is that sometimes, one value is greater than the rest at 
certain interval, and this value superpose at the front (making the rest 
"invisible").
Changing the order is of no help, since these values are not predictable 
and any of them can be greater than the rest at a given interval.

Is there a way to force the lower value to be graphed at front and the 
higher at the back of a chart?
Should I use alpha on the areas for this?

The current definitions as follows:
"DEF:IdleThreads=$DB_PATH:IdleThreads:AVERAGE"
"DEF:WaitThreads=$DB_PATH:WaitThreads:AVERAGE"
"DEF:Connections=$DB_PATH:Connections:AVERAGE"
"DEF:AverageRTT=$DB_PATH:AverageRTT:AVERAGE"
"AREA:IdleThreads#C000FF:IdleThreads"
"AREA:WaitThreads#C0FF00:WaitThreads"
"AREA:Connections#C0000F:Connections"
"AREA:AverageRTT#3333FF:AverageRTT"

Any idea will be appreciated.

Best Regards!
José Oscar Olivares Ocampo
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