Re: [idvusers] Jython method to extract isosurface?

All-

Gridded3DSet would return you a geometry in VisAD coordinates and you could then convert those to lat/lon/alt by running them through the MapProjectionDisplay's coordinate system (fromReference), I would presume. But tom's point is valid in that you can't always map an isosurface to a 2D surface. Even a "simple" field like temperature might have folds where there are inversions.

Don

On 12/10/13 8:08 AM, Tommy Jasmin wrote:
On 12/10/13 8:52 AM, Tom Whittaker wrote:
Paul -- I don't know of anything off-hand.  One issue I see is if
there is a fold in the isosurface, a 2D representation is impossible.
For example, think of an isosurface of wind speed for, say, the 40kt
isosurface -- they would be "tubes" and "bubbles"...

tom

On Mon, Dec 9, 2013 at 11:47 PM, Paul Graham <meteorpaul@xxxxxxxxx>
wrote:
Hi IDV'ers,

I'm interested to know if there is a way to extract an isosurface
from a 3d
gridded field and store it as a 2d grid of isosurface heights for
display
or other purposes, using an IDV Jython script?

Any help is appreciated.

Thanks,

Paul
_______________________________________________


Hi guys - you are probably both aware but just to be sure, the VisAD
Gridded3DSet
class does have methods to extract both isosurfaces and isolines :

http://www.ssec.wisc.edu/visad-docs/javadoc/visad/Gridded3DSet.html


--
Don Murray
NOAA/ESRL/PSD and CU-CIRES
303-497-3596
http://www.esrl.noaa.gov/psd/people/don.murray/