From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/86111 Path: news.gmane.org!not-for-mail From: Peter Rolf Newsgroups: gmane.comp.tex.context Subject: Re: runtime problem with metafun() code Date: Mon, 27 Jan 2014 14:17:18 +0100 Message-ID: <52E65C5E.5050001@gmx.net> References: <52E25E0F.3060304@gmx.net> <52E26E92.1080401@wxs.nl> <52E2B3CC.7080609@gmx.net> <52E3003A.7010509@wxs.nl> <52E3B4EC.4020001@gmx.net> <52E64D11.1060400@wxs.nl> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1390828643 25503 80.91.229.3 (27 Jan 2014 13:17:23 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 27 Jan 2014 13:17:23 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Mon Jan 27 14:17:32 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 1W7m4A-0004Es-PZ for gctc-ntg-context-518@m.gmane.org; Mon, 27 Jan 2014 14:17:30 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 428AD101EA; Mon, 27 Jan 2014 14:17:30 +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 PN6SS9yqyHB8; Mon, 27 Jan 2014 14:17:24 +0100 (CET) Original-Received: from balder.ntg.nl (localhost [IPv6:::1]) by balder.ntg.nl (Postfix) with ESMTP id B8833101E6; Mon, 27 Jan 2014 14:17:24 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id C3A17101E6 for ; Mon, 27 Jan 2014 14:17:23 +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 G9lJ81b2ypeu for ; Mon, 27 Jan 2014 14:17:22 +0100 (CET) Original-Received: from filter3-ams.mf.surf.net (filter3-ams.mf.surf.net [192.87.102.71]) by balder.ntg.nl (Postfix) with ESMTP id C8D50101E1 for ; Mon, 27 Jan 2014 14:17:22 +0100 (CET) Original-Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) by filter3-ams.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id s0RDHLeS005852 for ; Mon, 27 Jan 2014 14:17:21 +0100 Original-Received: from [192.168.178.3] ([37.24.150.212]) by mail.gmx.com (mrgmx002) with ESMTPSA (Nemesis) id 0MUI8w-1VgnFT0jNS-00R4oO for ; Mon, 27 Jan 2014 14:17:21 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.2.0 In-Reply-To: <52E64D11.1060400@wxs.nl> X-Enigmail-Version: 1.6 X-Provags-ID: V03:K0:fd6uLoHrk6+v6m7hZ4w3QBBLBvNau4u94frlNaCjECzDFxyP49x oXe01/fxBEj2Kwjr4km7Mp1f7ACjeEApKNgxT8nnR98pkItFL7QYXGuPw9rxCZmviu+lCFl oA3KifHTNWt/1LFTORhm1UpWlFZbJzWeRFuL8pi2zu0Qf+FlYfDRi3YhI+9SUHlnp4K8/iH 1fCdGgGV8xpwec2zoVrjQ== X-Bayes-Prob: 0.0001 (Score 0, tokens from: ntg-context@ntg.nl, base:default, @@RPTN) X-CanIt-Geo: ip=212.227.15.15; country=DE; latitude=51.0000; longitude=9.0000; http://maps.google.com/maps?q=51.0000,9.0000&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 03Lj1hl7r - daae3b3758bf - 20140127 (trained as not-spam) X-Scanned-By: CanIt (www . roaringpenguin . com) on 192.87.102.71 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:86111 Archived-At: Am 27.01.2014 13:12, schrieb Hans Hagen: > 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 > > Ah, that's how it works. I'm still a luatex noob... Many thanks, Hans!! Peter ___________________________________________________________________________________ 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 ___________________________________________________________________________________