Rich- > What I want is: > > a=a/10 (a>0) > a=a (a<=0) Define a Jython procedure: def scaleGrid(grid): p = grid.clone() for i in range(len(p)): a = p[i] if a > 0: p[i]=a/10 return p You could modify that to pass in a scale and threshold and provide defaults: def scaleGrid(grid, thresh=0, scale=10): p = grid.clone() t = int(thresh) s = int(scale) for i in range(len(p)): a = p[i] if a > t: p[i]=a/s return p Don > On Fri, Mar 5, 2010 at 4:54 PM, Unidata IDV Support > <address@hidden> wrote: > >> Jeff, > >> I seem to remember you saying to pass new function ideas along, so here > >> goes... > >> > >> I often want to load in DEM data (land topo/sea bathy) for visualizing > >> along with ocean modeling applications in IDV, but I want to provide a > >> different vertical exaggeration for the land and ocean topography, > >> because I want to clearly show the coastal ocean topography, but > >> without the land topography looking like skyscrapers. Â For example, > >> I'd like to scale the depths below 0 by a different factor than the > >> elevations above 0. Â ÂI imagine this is pretty simple, but still > >> don't know how. > >> > > > > Hi Rich, > > Just make a formula called scale, e.g., to scale by 2: > > > > Â Â fieldYouWantToScale*2 > > > > That should work. > > > > -Jeff > > > > > > > > > > > > Ticket Details > > =================== > > Ticket ID: NJK-709837 > > Department: Support IDV > > Priority: Normal > > Status: Closed > > > > > > > > -- > Dr. Richard P. Signell (508) 457-2229 > USGS, 384 Woods Hole Rd. > Woods Hole, MA 02543-1598 > > Ticket Details =================== Ticket ID: NJK-709837 Department: Support IDV Priority: Normal Status: Open
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