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.
Sorry, I messed up the capture. Correction attached.... tom On Sun, Apr 20, 2008 at 2:51 PM, Tom Whittaker <whittaker@xxxxxxxx> wrote: > Hi Dan -- > > I assume from your description that you tried to do a "change range" > on the theta-e plot. In my example, the original range was > 250-420K.....so perhaps you just tried changing the range to something > like 310-420K or something? > > The behaviour of this is that it then treats all values from 250-309 > as if there were equal to 310, for the purpose of mapping from the > data to the color table. > > The way I know of to accomplish this is to edit the color table, click > on the "Transparency" radio button, set the transparency to 100%, and > then grab the slider above the "250" and drag it to the right (you > should see black/white checkboard pattern). You will then get > something like the attached (I hope) image. > > Hope that helps... > > tom > > > > On Sun, Apr 20, 2008 at 12:42 PM, Dan Grey <dangrey@xxxxxxxxx> wrote: > > I've got a sat pic (from a server under "Images") on the surface, and > > a colour-shaded plot of theta-e at 850 hPa from the GFS above. I > > restrict the visible range of the theta-e to a value so only areas > > above a certain value are shown (to illustrate a plume event). However > > areas with theta-e below my range appear black, rather than showing > > through the sat pic below. > > > > Am I missing something simple, is this is intended behaviour, or is it a > bug? > > > > > > Dan > > _______________________________________________ > > idvusers mailing list > > idvusers@xxxxxxxxxxxxxxxx > > For list information, to unsubscribe, visit: > http://www.unidata.ucar.edu/mailing_lists/ > > > > > > -- > Tom Whittaker > University of Wisconsin-Madison > Space Science & Engineering Center (SSEC) > Cooperative Institute for Meteorological Satellite Studies (CIMSS) > 1225 W. Dayton Street > Madison, WI 53706 USA > ph: +1 608 262 2759 > -- Tom Whittaker University of Wisconsin-Madison Space Science & Engineering Center (SSEC) Cooperative Institute for Meteorological Satellite Studies (CIMSS) 1225 W. Dayton Street Madison, WI 53706 USA ph: +1 608 262 2759
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