File: README
Authors: David Meyers,
         K.R. Sloan
Last Modified: 13 November 1990
Purpose: General description of Surfaces from contours Release 2.0

This directory contains a surfaces from contours package written by
David Meyers, James Painter, Kenneth Sloan and others at the University of
Washington and the University of Alabama at Birmingham.

It is made available on an "as-is, where-is" basis, for non-commercial
research use only.  If it turns out to be useful, we would appreciate
appropriate acknowledgements, and reprints of papers.  If it turns out
to be broken, or not precisely what you need, we are sorry, but cannot
guarantee to help.    

Please do not re-distribute.  Please let us know that you are using it,
and your experiences with it.

The package produces a triangulated mesh from a set of contours
(cross-sections). Please read the UsersManual, located in the /doc directory.

To use some of the applications in this package it is necessary to have
the "Simple Graphics Package" (SGP) and "Washington File Format" (wff)
packages.  Another package of interest is the SurfacePipeline, which
accepts the "mesh" and produces various smooth surfaces.  See
"CONTACTS", below.

Some (most!) of the Makefile's in this package will need to be modified to
indicate the location of the SGP and wff packages.

All of the Makefile's use a rather baroque scheme to maintain separate
"bin" directories for multiple architectures.  It is non-standard, and
we are sorry if it offends you.  But, you will probably need to edit ALL
of the Makefiles, and specify your local Architecture (look for ARCH =
...).

Once you have editted the Makefile's, and installed SGP and wff, you are
ready to run "Installer", in this directory.  This will almost certainly
fail, and require minor diddling.  Sorry about that.

If you only want PART of this release, perhaps because you don't have
SGP or wff, you are on your own.  Good luck.

NEW AND SPECIAL:

A new canyon tiler has been implemented which optimizes the tiling
produced by the tiler of the original release. A demo of the tiling
algorithm is in the subdirectory "Tiling". The README file in that
directory explains how to compile that code.

CONTACTS:

For Contours, SGP, wff: 
    Kenneth Sloan
    Computer and Information Sciences
    University of Alabama at Birmingham
    115A Campbell Hall, UAB Station
    Birmingham, AL 35294
    (205) 934-2213
    (205) 934-5473 FAX
    <sloan@cis.uab.edu>
             
For the SurfacePipeline: 
    Tony DeRose
    CSE, FR-35
    University of Washington
    Seattle WA 98195
    (206) 545-3795
    derose@cs.washington.edu



