home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!rcwusr.bp.com!lakerb
- From: lakerb@rcwusr.bp.com
- Newsgroups: comp.graphics.avs
- Subject: Re: Handling of "missing" or "special values"
- Message-ID: <1992Dec30.121439.81@rcwusr>
- Date: 30 Dec 92 12:14:39 -0600
- References: <1992Dec30.150955.18683@netnews.whoi.edu>
- Organization: BP Research, Cleveland, OH (USA)
- Lines: 17
-
- In article <1992Dec30.150955.18683@netnews.whoi.edu>, rsignell@crusty.er.usgs.gov (Richard P. Signell) writes:
- > Is there a way to tell isosurface to ignore missing or special
- > values in a 3D grid? Setting missing values to zero or some
- > other value does *not* have the desired affect.
- >
-
- One trick we considered (topo map with some corners missing) was to break the
- grid domain into several rectilinear 2-D fields. We would then assign the
- appropriate coordinates to each data point and combine the several 2-D views in
- a Geometry Viewer.
-
- We ended up re-gridding the data into a spreadsheet and filling in the missing
- corners by hand ...
-
- Rob Lake
- BP Research
-
-