Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
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/
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