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gnuplot-3.1bin.readme
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1995-03-17
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7 Feb 92 - OK people...sorry for the buggy 68881 version. This is
Gnuplot 3.1 compiled with Aztec 5.2a. It has been reported to be
stable for the 68881 version. I've turned on stack checking 'cuz this
thing can get stack hungry. Mail problems to black@beno.css.gov.
This .lzh also contains the complete docs/gnuplot.gih file.
SOME NOTES ON GNUPLOT ON THE AMIGA ...
Additions by Michael D. Black with new terminal driver
Environment Variables:
GNUXMAX This will define the width of the screen "setenv XMAX 640".
GNUYMAX This will define the height of the screen "setenv YMAX 400".
GNUCOLORS This will set the colors used on the screen. These are eight
hexadecimal digits (0-F) representing the intensity of the
red, green, and blue components of the color.
'setenv "GNUCOLORS=88a 000 00b b00 0b0 f90 fff f0f"'.
GNUFONT You can say "setenv GNUFONT <Fontname>/<Pointsize>" to get the font
of your liking on the screen, e.g. "setenv GNUFONT sapphire/14".
Otherwise gnuplot will select the default-font you chose with
"Preferences".
GNUHELP Allows you to define a pathname for the GNUPlot help file. For
example, "setenv GNUHELP TEX:gnuplot.gih"
GNUPLOT Your current directory is searched for the file ".gnuplot".
If you say "setenv GNUPLOT <Path>" (without the filename!)
GNUPlot will look for it there.
GNUTERM You can define a default driver with "setenv GNUTERM <driver>".
A good choice is "setenv GNUTERM amiga" :^)
SHELL If you don't like "NewShell" as your shell, you can say
"setenv SHELL <Shell>".
Stack Size:
Set your stack to at least 20000 and you'll be fine (I hope).
If you're using the integral feature, a stack size of at least 70000
is necessary (at least it is for "bivariat.demo" to execute).
-------------------------- LATTICE C VERSION ------------------------------
Default paths/directories:
Gnuplot looks for the file "gnuplot.gih" in your "S:"-directory unless you
specify the full pathname including the filename via "setenv GNUHELP".
Bugs/deficiencies:
The SAS/C 5.1 library routine [fs]scanf will not correctly handle
format-strings like "%[^\n]s". Maybe this will be fixed by SAS in future
versions.
When using "%g" as format-string, SAS/C 5.1 [fs]printf will incorrectly
output "0" as "0.". This looks rather ugly as a axis-label.
SAS/C 5.1 bugs:
SAS/C 5.1 [fs]scanf will count parameters overread with the "%*s" format-
string as properly matched. I included a fix for this by counting the
"%*"-sequences in the given format-string. Therfore the "*" must immediately
follow the "%" (I don't know if it's legal to put something in-between
these two characters anyway...).
If you start a shell via the gnuplot "shell"-command you won't be able to
close your CLI/Shell again. This is probably due to an error in the
SAS/C "system"-call.
"isatty(fileno(stdin))" did not work correctly. A fix is included.
SAS/C does not seem to handle float-parameters in function-calls and
-declarations correctly. (This cost me at least 2 hours to figure out >:-( ).
See the latex- and eepic-drivers for details.
--------------------------- AZTEC C VERSION -------------------------------
Default paths/directories:
GNUPlot looks for the "gnuplot.gih" file in "GNUPLOT:docs/gnuplot.gih" if
GNUHELP is not defined. This is defined in the makefile (makefile.ami).
Terminal Drivers:
The Aztec C version can now use the "amiga.trm" driver written by
Carsten Steger. Under KS/WB 2.0, a custom screen will be used with a size
specified by the Prefs/Overscan program.
This version has another terminal driver by Michael Black which behaves
somewhat differently (I like to think better) than Steger's version.
It only opens the screen when a plot is active, allows you to specify
the size of the screen and the colors also. Comments on this can
be sent to black@beno.css.gov.