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README
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README 11/11/90
PolyView
_______________________________________________________________________________
BEFORE YOU BEGIN
Please read the README.FIRST file - found at the root level of this server -
for general information and instructions on unarchiving and uncompressing
files.
The README.BROCHURE also contains helpful descriptions of this and other
software offered on the ftp server.
_______________________________________________________________________________
POLYVIEW
Enhancements to this software are occurring rapidly. Keep looking for updates
in this directory. Useful suggestions are likely to be implemented in new
releases.
Portions developed at the National Center for Supercomputing Applications at
the University of Illinois at Urbana-Champaign.
What does it do?
PolyView displays an HDF Vset of polygons or points at a two
or three dimensional, interactive image with optional annotation,
which may be written to a RIS8 HDF format file. The program
also allows you to:
-- change display projection
-- render display as points, lines, or polygons
-- choose constant or gouraud shaded polygons
-- load and manipulate the colormap
-- animate a series of vdata sets
-- view a fly-by of the data using a script file
How is it used?
The program reads HDF Vset files. The HDF Vset 1.0 library
is required. The necessary code for this application is included
in this release.
_______________________________________________________________________________
REQUIREMENTS
PolyView is only supported on the Silicon Graphics Personal
IRIS 4D/20G (24-bit color, 24-bit Z-buffer). It makes extensive
use of Z-buffering. Although it has not been tested on higher-end
IRISes, it should run on most models. It is compiled using
shared graphics and mathematics libraries.
_______________________________________________________________________________
INSTALLATION
In order to create the example HDF Vset file, "demo.hdf", you should download
the following files:
makefile md.c df.h dfi.h vg.h libdf.a libvg.a
The makefile will compile "md" which, in turn, is used to create "demo.hdf".
"md.c" provides example code for creating an HDF Vset file from scratch, and
may be used as a starting point for a data filter.
Creating PolyView itself requires all of the files in the v102/src directory.
Typing "make" without any parameters is all that is necessary to create the
program.
For further development of Vset files it is recommended that you obtain the HDF
Vset 1.0 code. It is available via anonymous ftp, by remote login, or direct
from NCSA on tape.