From: Paul Menzel <paulepanter@users.sourceforge.net>
To: ntg-context@ntg.nl
Subject: Lua and module gnuplot: Manipulate Gnuplot script with Lua
Date: Mon, 12 Dec 2011 22:39:24 +0100 [thread overview]
Message-ID: <1323725964.26949.90.camel@mattotaupa> (raw)
[-- Attachment #1.1.1: Type: text/plain, Size: 1365 bytes --]
Dear ConTeXt folks,
I have two coefficients saved in a text file
-0.157737135681261
-0.211443105668896
and I want to use them to plot a line with gnuplot.
Having several of those files I want to use Lua to create the formula
for the line for me.
I have not yet figured out how to read values from a file in Lua and
just tried to print a constant to the gnuplot command.
I tried the following.
\usemodule[gnuplot]
\startGNUPLOTscript[lua]
plot \ctxlua{context(1.2 * x + 3)}
\stopGNUPLOTscript
\startGNUPLOTscript[nolua]
plot 1.2 * x + 3
\stopGNUPLOTscript
\starttext
\useGNUPLOTgraphic[lua]
Above should be a plot.
\useGNUPLOTgraphic[nolua]
\blank
\CONTEXT\ \contextmark\ \contextversion
\stoptext
But only the second plot done and for the first the following error is
shown.
mtxrun |
mtxrun | executing: gnuplot gnup-gnuplot-1.plt
mtxrun |
mtxrun |
plot \ctxlua{context(1.2 * x + 3)}
^
"gnup-gnuplot-1.tmp", line 1: invalid character \
Is there a way to manipulate gnuplot scripts with Lua?
Thanks,
Paul
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\usemodule[gnuplot]
\startGNUPLOTscript[lua]
plot \ctxlua{context(1.2 * x + 3)}
\stopGNUPLOTscript
\startGNUPLOTscript[nolua]
plot 1.2 * x + 3
\stopGNUPLOTscript
\starttext
\useGNUPLOTgraphic[lua]
Above should be a plot.
\useGNUPLOTgraphic[nolua]
\blank
\CONTEXT\ \contextmark\ \contextversion
\stoptext
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next reply other threads:[~2011-12-12 21:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-12 21:39 Paul Menzel [this message]
2011-12-12 22:07 ` Mojca Miklavec
2011-12-12 22:13 ` Mojca Miklavec
2011-12-12 22:20 ` Hans Hagen
2011-12-12 22:44 ` Paul Menzel
2011-12-12 22:35 ` Paul Menzel
2011-12-13 9:10 ` Hans Hagen
2011-12-13 6:52 ` Aditya Mahajan
2011-12-12 22:17 ` Hans Hagen
2011-12-12 22:27 ` Mojca Miklavec
2011-12-13 6:45 ` Aditya Mahajan
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