From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/73121 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: Lua and module gnuplot: Manipulate Gnuplot script with Lua Date: Mon, 12 Dec 2011 23:17:03 +0100 Message-ID: <4EE67D5F.30705@wxs.nl> References: <1323725964.26949.90.camel@mattotaupa> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1323728256 3200 80.91.229.12 (12 Dec 2011 22:17:36 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Mon, 12 Dec 2011 22:17:36 +0000 (UTC) Cc: Paul Menzel To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Mon Dec 12 23:17:31 2011 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RaEBe-0000MY-Pq for gctc-ntg-context-518@m.gmane.org; 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Mon, 12 Dec 2011 23:17:24 +0100 (CET) Original-Received: from smtp.ziggozakelijk.nl (D57D1DA2.static.ziggozakelijk.nl [213.125.29.162]) by filter1-ams.mf.surf.net (8.14.3/8.14.3/Debian-5+lenny1) with ESMTP id pBCMHNIP002176 for ; Mon, 12 Dec 2011 23:17:23 +0100 X-Default-Received-SPF: pass (skip=loggedin (res=PASS)) x-ip-name=10.100.1.101; Original-Received: from [10.100.1.101] (unverified [10.100.1.101]) by pragma-net.nl (SurgeMail 5.3h2) with ESMTP (TLS) id 2784-1713362 for multiple; Mon, 12 Dec 2011 23:17:12 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:8.0) Gecko/20111105 Thunderbird/8.0 In-Reply-To: <1323725964.26949.90.camel@mattotaupa> X-Authenticated-User: hagen@controller-9 X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=213.125.29.162; country=NL; region=11; city=Den Haag; latitude=52.0833; longitude=4.3000; http://maps.google.com/maps?q=52.0833,4.3000&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 06G8mhnrV - 173c761c6025 - 20111212 X-Scanned-By: CanIt (www . roaringpenguin . com) on 192.87.102.69 X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.12 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: ntg-context-bounces@ntg.nl Errors-To: ntg-context-bounces@ntg.nl Xref: news.gmane.org gmane.comp.tex.context:73121 Archived-At: On 12-12-2011 22:39, Paul Menzel wrote: > 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 You have to twist your mide a bit: \startluacode local x = 10 context.startGNUPLOTscript{ "lua" } context("plot %s",1.2 * x + 3) context.stopGNUPLOTscript() \stopluacode \starttext \useGNUPLOTgraphic[lua] \stoptext ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl ----------------------------------------------------------------- ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________