The file SURFACE.ZIP contains this README file and the files
SURFACE.EXE and SURFACE.HLP.

SURFACE is a program written for MS WINDOWS which will read in a
set of scattered data points (x, y, z) which represents a
surface. The program will generate a regular grid from this data
and then display the surface as a contour map, or as a grid
viewed from an arbitrary viewpoint, optionally with hidden lines
removed. 

SURFACE runs under MS WINDOWS 3.1 or later. An 80 by 80 grid
representing 1000 scattered data points will typically be gridded
in 10 to 20 seconds on a 33Mhz 486. A 125 by 125 grid (the
maximum allowed) representing 15,000 data points will be gridded
in less than a minute on the same machine. This program makes no
special demands on the PC and will run on much smaller machines
at a (much) slower speed. The display may be copied to the
clipboard or printed.

SURFACE is a lean program. It does not smooth contour lines nor
shade the surface. It does not create "presentation graphics".
However its ease of use, speed, and the fact that it will run on
very modest hardware platforms may make it attractive. It is well
suited in situations where it is desired to have a quick look at
a set of data points, for example under field conditions where
only a portable PC is available.

SURFACE is available through anonymous ftp from ftp.ucs.ubc.ca in
the file pub/msdos/ubc/surface.zip. It is self documented through
it's help facility. 

The program is installed by placing the files SURFACE.EXE and
SURFACE.HLP together in some handy directory. SURFACE may be run
from Windows by doubleclicking on SURFACE.EXE in the File Manager
window. It may be installed in a program group by dragging
SURFACE.EXE from the File Manager window to an existing program
group.

This program may be freely copied and distributed. For more
details please install the program and consult the help facility.

                                  John Coulthard
                                  3135 West 11th 
                                  Vancouver, B.C.   V6K 2M8 
                                  email: w.j.coulthard@ubc.ca

