From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/86109 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: runtime problem with metafun() code Date: Mon, 27 Jan 2014 13:12:01 +0100 Message-ID: <52E64D11.1060400@wxs.nl> References: <52E25E0F.3060304@gmx.net> <52E26E92.1080401@wxs.nl> <52E2B3CC.7080609@gmx.net> <52E3003A.7010509@wxs.nl> <52E3B4EC.4020001@gmx.net> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1390824757 10997 80.91.229.3 (27 Jan 2014 12:12:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 27 Jan 2014 12:12:37 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Mon Jan 27 13:12:44 2014 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([5.39.185.229]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1W7l3T-00038i-Pf for gctc-ntg-context-518@m.gmane.org; Mon, 27 Jan 2014 13:12:44 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 38A45101F1; Mon, 27 Jan 2014 13:12:43 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id SKt9YdT5OYrQ; Mon, 27 Jan 2014 13:12:37 +0100 (CET) Original-Received: from balder.ntg.nl (localhost [IPv6:::1]) by balder.ntg.nl (Postfix) with ESMTP id D1244101E6; Mon, 27 Jan 2014 13:12:37 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id A5633101E6 for ; Mon, 27 Jan 2014 13:12:35 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id AogWjpKk0lvk for ; Mon, 27 Jan 2014 13:12:30 +0100 (CET) Original-Received: from filter1-utr.mf.surf.net (filter1-utr.mf.surf.net [195.169.124.152]) by balder.ntg.nl (Postfix) with ESMTP id C1523101E1 for ; Mon, 27 Jan 2014 13:12:30 +0100 (CET) Original-Received: from smtp.ziggozakelijk.nl (D57D1DA2.static.ziggozakelijk.nl [213.125.29.162]) by filter1-utr.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id s0RCCCZp020485 for ; Mon, 27 Jan 2014 13:12:19 +0100 X-Default-Received-SPF: pass (skip=loggedin (res=PASS)) x-ip-name=10.100.1.103; Original-Received: from [10.100.1.103] (unverified [10.100.1.103]) by pragma-net.nl (SurgeMail 6.3c2) with ESMTP id 564-1713362 for ; Mon, 27 Jan 2014 13:12:13 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 In-Reply-To: <52E3B4EC.4020001@gmx.net> X-Authenticated-User: hagen@controller-9 X-Bayes-Prob: 0.0001 (Score 0, tokens from: ntg-context@ntg.nl, base:default, @@RPTN) X-CanIt-Geo: ip=213.125.29.162; country=NL; region=15; city=Zwolle; latitude=52.5058; longitude=6.0858; http://maps.google.com/maps?q=52.5058,6.0858&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 07Lj0ccDJ - f2230dabac47 - 20140127 (trained as not-spam) X-Scanned-By: CanIt (www . roaringpenguin . com) X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.14 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ntg-context-bounces@ntg.nl Original-Sender: ntg-context-bounces@ntg.nl Xref: news.gmane.org gmane.comp.tex.context:86109 Archived-At: On 1/25/2014 1:58 PM, Peter Rolf wrote: > Am 25.01.2014 01:07, schrieb Hans Hagen: >> On 1/24/2014 7:41 PM, Peter Rolf wrote: >>> Am 24.01.2014 14:45, schrieb Hans Hagen: >>>> On 1/24/2014 1:35 PM, Peter Rolf wrote: >>>>> Hi, >>>>> >>>>> I try to create a Metapost path in lua and it works so far for the >>>>> attached example. But a call of that function from another lua function >>>>> sadly fails (no path visible after call). The code seems to be executed >>>>> later (the output from 'show pid;' appears somewhere later in the log). >>>>> >>>>> How can I ensure that the code is executed at runtime? >>>> >>>> I don't understand the issue but isn't there a >>>> >>>> metafun("draw p;") >>>> >>>> missing then? >>>> >>> Setting the bounding box has the same effect, as drawing something. >>> Both methods avoid that the emtpy graphic is ignored by ConTeXt. >>> >>> Anyhow, the MP path is not available in metapost.variables after the >>> function call. If there is no other way I have to call the function from >>> the TeX side (like in the attached example). Will look into that >>> tomorrow. >> >> %D We also provide an outputless run: >> >> \unexpanded\def\startMPcalculation >> > I tried that command, but couldn't get it to work on the lua side. > > The first pure MP line after context.startMPcalculation() raises a lua > error and a combination with metafun() is also not working. So how to > use this in lua? > > > Anyhow, the problem is the execution time of the MP graphic. I changed > the attached example a bit, so that you can see it. > The inspect() in drops.foo() gives an empty table, while the second > inspect on the TeX side shows the path "drops:foo". > > I need the path right after the call (it needs to be adapted to IM > afterwards; mainly scaling and shifting). Is there a way to "force" the > execution of the graphic without switching back to the TeX side? function drops.foo(id,width,height,radius) drops.generate_default_path(id,width,height,radius) context(function() inspect(metapost.variables) end) -- empty here end or function drops.bar() inspect(metapost.variables) end function drops.foo(id,width,height,radius) drops.generate_default_path(id,width,height,radius) context(drops.bar) -- empty here end ----------------------------------------------------------------- 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 ___________________________________________________________________________________