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Turnbull China Bikeride
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Turnbull China Bikeride - Disc 2.iso
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GRAPHING
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SURFACE
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!Surface
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1996-03-20
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!Surface, © Chris Johnson, 1995
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
What this software does
~~~~~~~~~~~~~~~~~~~~~~~
This application is a very simple 3D function (surface)
plotter. It takes as input a text file containing the x, y,
and z data for a function of the form z=f(x,y), and draws a
3D view of the function. This version is very dumb and does
not allow any choice in how the graph is displayed. Better
things will emerge in the course of time, I hope.
Use !3DFnEdit to produce data files of BASIC type functions
in the correct format for !Surface to understand.
If !3DFnEdit and !Surface are active at the same time, then
the data files can be passed back and forwards
"transparently" as far as the user is concerned, the Wimp
message system doing all the work.
Running !Surface
~~~~~~~~~~~~~~~~
Double clicking on the !Surface icon in a directory viewer
will install its icon on the icon bar. A data file
(originally produced by !3DFnEdit) can be loaded by drag and
drop. The display window will open when the data is loaded.
Data can also be passed in directly from !3DFnEdit. Any new
data file will overwrite the surface being displayed.
Full interactive help is available, via !Help or
!BubbleHelp.
*************************************************************
The software referred to in these notes is NOT placed into
the public domain, but remains the copyright of the author,
Chris Johnson, and is released as Shareware only, and should
not be posted on bulletin boards or circulated on any public
domain software discs, except by prior and express agreement
with the author.
Anyone obtaining this software other than from the author,
and making use of the software other than for trial
purposes, is requested to register with the author by
sending a minimum of £3. All registered users will be
informed from time to time of any significant improvements
or 'bug' fixes and will be entitled to upgraded versions of
the software free of charge at any time by sending a blank
disc, an SAE and sufficient to cover return postage. A
single registration will cover use of the complete suite of
graphing software produced by the author.
The software is supplied as is, and no warranty, either
express or implied, is given as to the suitability of the
software for any purpose.
If you have any comments on this program, or would like to
suggest ways in which it could be improved then write to the
author.
Chris Johnson
7 Lovedale Grove
Balerno
Edinburgh EH14 7DR
If you have access to the JANET e-mail system then you can
try
C.A.Johnson@hw.ac.uk
In any communication PLEASE
• quote the version number and date
• refer only to the program as issued.
• supply as many details as possible about the problem, and
indicate the hardware configuration of the machine being
used.
PLEASE SEND A STAMPED AND SELF ADDRESSED ENVELOPE IF YOU
REQUIRE A REPLY.
I hope you find the program of some use.
CafJ 22/4/95