> Hi Yuan... > > Using the "Principle of Least Surprise", I would say remove the option > when you have something over topography, and let people use a formula > to smooth just the grid they want. > > However, even that might be too much of a "surprise", so I would say > do what you proposed -- solve problem #1 which would smooth the > topography, but make sure the user is aware of this (document) and > give them the formula-based work-around if smoothing the topography is > not desired. > > Thanks for asking! See you in a couple of weeks! > > tom Tom, Actually, I am more towards to Don's approach that can be less buggy in the future. My feeling is that you can take either one. I will check in Don's change and hope not making any big surprise.:) Yuan > > On Mon, Jan 10, 2011 at 10:28 AM, Unidata IDV Support > <address@hidden> wrote: > >> Hi.... > >> > >> A user had put a contour-over-topography (model data, 1000hPa > >> temperatures draped over the 1000hPa height field) and when he the > >> smoothed the contours using the Control option, the contour display > >> ended up being re-drawn down at z=0 instead of being 'draped'.... > >> > >> I talked with Don who said the issue is that "the ScalarMap of height > >> to Z now points to the wrong parameter, so it does indeed plot at z = > >> 0" > >> > >> I have given the user a work-around for now -- to use the gwfs() > >> function in the Jython library to create a smoothed grid initially and > >> drape that over the topography...but perhaps the other should be > >> fixed... > >> > >> tom > > > > Hi Tom, > > Â Â ÂWe figured out the problem in the source code, and I checked with > > Don about > > the possible solution. Here is two different approaches, and I would like > > to get > > your opinion. > > Â Â ÂThere are two problems in this ticket, one is the topography field > > gets smoothed when > > user applies any smoothing request, and the second is the topography filed > > is no longer valid > > after the smoothed. > > Â Â ÂSo the first approach is to solve the second problem and ignore the > > first one, assuming the > > user does't care that much. If the user does care, then your suggestion > > about the formula is the > > answer. The second apporach is to remove the smoothing option when you have > > something over the > > topography. > > Â Â ÂWhat do you think? > > > > > > Yuan > >> > >> -- > >> Tom Whittaker > >> University of Wisconsin-Madison > >> Space Science & Engineering Center (SSEC) > >> Cooperative Institute for Meteorological Satellite Studies (CIMSS) > >> 1225 W. Dayton Street > >> Madison, WIÂ 53706Â USA > >> ph: +1 608 262 2759 > >> > >> > > > > > > Ticket Details > > =================== > > Ticket ID: EHW-921191 > > Department: Support IDV > > Priority: Emergency > > Status: Open > > > > > > > > -- > Tom Whittaker > University of Wisconsin-Madison > Space Science & Engineering Center (SSEC) > Cooperative Institute for Meteorological Satellite Studies (CIMSS) > 1225 W. Dayton Street > Madison, WIÂ 53706Â USA > ph: +1 608 262 2759 > > Ticket Details =================== Ticket ID: EHW-921191 Department: Support IDV Priority: Emergency Status: Open
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