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.
Trickier part might be using YAxisOffset with the map boundaries, the uglyway: lon,lat -> elem,line and duplicate those at each index in the field structure
that Bill suggested. Don Murray wrote:
Thanks, Bill. I had tried using YAxisOffset and it sort of works, but I think I was missing computing the scale and offset. Since I haven't used the offset spatial scalarmaps before, I guess I'll have to bone up on the caveats.At least I'm on the right track! Don On 10/27/10 10:45 AM, hiding@xxxxxxxxx wrote:Hi Don, If the images are at evenly spaced time intervals you may simply be able to replace: Time -> Animation with: Time -> YAxisOffset with appropriately computed scale and offset. If the time intervals are not evenly spaced, then you may need to convert your data to something like: (Index -> (Time, ((ImageElement, ImageLine) -> Band1))) and replace: Time -> Animation with: Index -> YAxisOffset It will be a little work to compute proper scale and offset for the ScalarMap to YAxsOffset. Good luck and let us know if you have any problems. Bill -----Original Message----- From: Don Murray <Don.Murray@xxxxxxxx> To: visad@xxxxxxxxxxxxxxxx Sent: Wed, Oct 27, 2010 10:53 am Subject: [visad] Hovmoller diagram Hi All- I have a set of images that show the data of a narrow band of the earth. The MathType is: (Time-> ((ImageElement, ImageLine) -> Band1)) with a CoordinateSystem of: (ImageElement, ImageLine) ==> (Latitude, Longitude) Normally, I map: Latitude->Y Axis Longitude -> X Axis Band1 -> RGB Time -> Animation to do a time animation of the images. What I would like to do is generate a Hovmoller diagram where Time is the Y axis and the images are stacked along in time, such as the image here: http://www.nhc.noaa.gov/gifs/gehov2.gif What ScalarMaps would I need and/or how would I need to munge the data to accomplish this? Thanks for your help. Don -- Don Murray NOAA/ESRL/PSD and CIRES 303-497-3596 http://www.esrl.noaa.gov/psd/people/don.murray/ _______________________________________________ visad mailing list visad@xxxxxxxxxxxxxxxx For list information, to unsubscribe, visit: http://www.unidata.ucar.edu/mailing_lists/
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