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.
RC, >Date: Fri, 23 Feb 2001 09:47:31 -0500 >From: RC <recif@xxxxxxxxx> >To: visad-list@xxxxxxxxxxxxx >Subject: Display of 1D data from a 2D image The above message contained the following: > Is there a relatively straightforward way in visad for the data values > corresponding to a line being dragged across an image to be displayed > in a plot (somewhat as in Collage available from NCSA)? I'm not sure what you're asking, exactly. If you want to plot the range values of a ((x,y)->z) field as a function of position (s) along a line segment then, yes, VisAD can do this. Represent the line segment as an (s->(x,y)) FlatField. Everytime the line segment is moved, convert its new range values into a set and then use that set to resample the ((x,y)->z) field. Finally, modify the range values of a displayed (s->z) field according to the resampling. Regards, Steve Emmerson <http://www.unidata.ucar.edu>
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