Hi Tyn-
On 2/15/11 4:44 PM, Valentijn Venus wrote:
I have a flat ADDE image in IDV which plots in the Map Display on 0
msl. But in reality the data represents a pressure level (I.e. 800
mb).
I was hoping I could use jython to define a vertical coordinate axis,
and then augment my (meta)data so the image plots nicely at the
corresponding height in the atmosphere…
Ideas? Any pointers to which methods from the VisAD/IDV APIs I should
start with….
There is no method to easily do this. Essentially, you'll have to take
apart the existing domain, add in the 800 hPa value, create a new domain
RealTupleType with the appropriate coordinate system and the set the new
domain on the image. It's like the reverse of GridUtil.makeDomain2D,
but harder. ;-)
Couldn't you figure out where 800 hPa is on the box and use the Z Slider
to move it to that location?
Another possibility would be to create a RealTupleType with the value
of the level and the appropriate CoordinateSystem of Pressure to Height.
Take your image which is something like:
Time -> ((x,y)->value)
and create a new FieldImpl that looks like:
Time -> (Pressure ->((x,y)->value))
That might work, but I couldn't say for sure until someone tried it.
And, it would all have to be done manually - there is no method to do
that either.
Anyone else have some ideas on this?
Don
--
Don Murray
NOAA/ESRL/PSD and CIRES
303-497-3596
http://www.esrl.noaa.gov/psd/people/don.murray/
