🚀 go-pugleaf

In article <1992Jul30.213040.1082@netnews.whoi.edu> rsignell@crusty.er.usgs.gov (Richard P. Signell) writes:
>I have lots of topography data that is convenient to read in as a 2D
>rectilinear field, where the data variable is elevation, and the
>coordinate variables are latitude and longitude.
>
>To render this data usefully with field-to-mesh, it seems I need to convert  
>this to a 3D irregular field, where the data variable elevation is
>combined with the latitude and longitude to give each elevation point
>a 3rd coordinate.
>
>I checked the AVS center, but didn't see anything obvious that would 
>do the trick.  Did I miss something there, or does anyone have a unsubmitted
>module that would work?
>
>Thanks,
>--
>Rich Signell               |  rsignell@crusty.er.usgs.gov
>U.S. Geological Survey     |  (508) 457-2229  |  FAX (508) 457-2310
>Quissett Campus            |  "George promised to be good... 
>Woods Hole, MA  02543      |  ... but it is easy for little monkeys to forget."


As mentioned previously in this newsgroup, we used the undocumented 'sphere'
capability to visualize topographic data.  This was in AVS 3.0, left over from
an earlier AVS release.  We had to append 3 or 4 integers to each line of data
to represent sphere color and perhaps sphere size.  I'm not in the lab, so
I can't check this out right now.

Someone suggested another way to do this, but we've just installed AVS 4.0
and time doesn't yet permit looking at alternatives.  The MAIN problem we had
was that the data set we were provided did not completely fill a rectalinear
area, so some of the conversion and filter routines would not work.  I am
committed to solving this problem, rendering a surface of this topo data with
an aerial photo before the end of the year.  Will be happy to share what we
learn along the way!

Rob Lake
BP Research
lake@rcwcl1.dnet.bp.com