Positioning with Display side CoordinateSystem.


I'm asking this to the list because the answer might be
of interest to others.

I have a SkewT display (2D) that has a DisplayRealTupleType
(SkewTPressure, SkewTTemperature, SkewTZAxis) with a
CS that takes these to XYZ.  I use ScalarMaps of
(Pressure -> SkewTPressure), (Temperature -> SkewTTemperature).
I also have (X->XAxis, Y->YAxis, Z->ZAxis). This all works
fine for plots of temperature FlatField of type
(Pressure -> Temperature).  However, I'd like to plot winds
barbs along the right side display.  The fields I put in
are (Pressure -> (U, V)) and I add ScalarMaps of
(U -> Flow1X, V -> Flow1Y).  I thought I could get
this to work by adding in a ConstantMap of (1.0 -> XAxis),
so all the winds would line up along the right side of
the display. Instead, they line up along the 0 degree
isotherm (0 is the default for the DisplayRealType).  I've
put a screen shot at:


(the solid white line is the winds - there's a lot of

Is there any way I could get this to work without
having to figure out the p,t location of each point along
the right side of the display?

Thanks in advance.

Don Murray                               UCAR Unidata Program
dmurray@xxxxxxxxxxxxxxxx                        P.O. Box 3000
(303) 497-8628                              Boulder, CO 80307