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.
Hi Stu- Stuart Wier wrote:
I need to make an IDV formula to make the gradient of a 2d scalar field (a new 2d vector field), and also the magnitude of the gradient as a new scalar field. Anyone know how to do that offhand?
You can use the grad(S) python procedure in the griddiag.py module to compute the gradient. Use the mag(V) procedure to compute the magnitude of the resulting vector: mag(grad(S)) You can use the Grid->Define a grid diagnostic Formula to try this on the fly, or create a formula. All the jython procedures are documented at: http://www.unidata.ucar.edu/software/idv/docs/userguide/tools/JythonLib.html (I just noticed that the mag function on that page is not formatted correctly. I'll fix that for a future release). Don ************************************************************* Don Murray UCAR Unidata Program dmurray@xxxxxxxxxxxxxxxx P.O. Box 3000 (303) 497-8628 Boulder, CO 80307 http://www.unidata.ucar.edu/staff/donm *************************************************************
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