From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/30985 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: calculations Date: Mon, 25 Sep 2006 12:21:52 +0200 Message-ID: <4517ADC0.7070102@wxs.nl> References: <93F3046C-F059-4C5D-AC7F-73DFD5A4AAD6@fiee.net> <0DE942E8-4FE2-41E2-8C04-6D2DD127172D@fiee.net> <4512E411.2070504@gmx.net> <181E3AED-683E-4B2C-9D7B-5AE966E621E5@fiee.net> <4517A56C.5020704@gmx.net> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1159179744 16606 80.91.229.2 (25 Sep 2006 10:22:24 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 25 Sep 2006 10:22:24 +0000 (UTC) Original-X-From: ntg-context-bounces@ntg.nl Mon Sep 25 12:22:21 2006 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from ronja.vet.uu.nl ([131.211.172.88] helo=ronja.ntg.nl) by ciao.gmane.org with esmtp (Exim 4.43) id 1GRnbL-00067Z-Ch for gctc-ntg-context-518@m.gmane.org; Mon, 25 Sep 2006 12:22:15 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 9E91F1FDF0; Mon, 25 Sep 2006 12:22:12 +0200 (CEST) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 25393-03; Mon, 25 Sep 2006 12:22:03 +0200 (CEST) Original-Received: from ronja.vet.uu.nl (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 17B721FD9A; Mon, 25 Sep 2006 12:22:03 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id EBA491FD9A for ; Mon, 25 Sep 2006 12:21:57 +0200 (CEST) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 25394-03 for ; Mon, 25 Sep 2006 12:21:53 +0200 (CEST) Original-Received: from mail.pragma-ade.net (dsl-083-247-100-017.solcon.nl [83.247.100.17]) by ronja.ntg.nl (Postfix) with SMTP id A4BD31FD8A for ; Mon, 25 Sep 2006 12:21:52 +0200 (CEST) Original-Received: from [10.100.1.104] (unverified [10.100.1.104]) by controller-1 (SurgeMail 3.7b8) with ESMTP id 9577 for ; Mon, 25 Sep 2006 12:21:52 +0200 User-Agent: Thunderbird 1.5.0.7 (Windows/20060909) Original-To: mailing list for ConTeXt users In-Reply-To: <4517A56C.5020704@gmx.net> X-Server: High Performance Mail Server - http://surgemail.com r=-274017400 X-Authenticated-User: hagen@controller-1 X-Virus-Scanned: amavisd-new at ntg.nl X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.7 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 X-Virus-Scanned: amavisd-new at ntg.nl Xref: news.gmane.org gmane.comp.tex.context:30985 Archived-At: Peter Rolf wrote: > Henning Hraban Ramm wrote: > >> Am 2006-09-21 um 21:12 schrieb Peter Rolf: >> >> >>>>> \externalfigure[\lily!img][scale=\dimexpr(1000\LPscale)]% >>>>> >>> \numexpr should work here >>> ..[scale=\numexpr1000\LPscale\relax]% >>> >> thank you, that seemed what I looked for, but: >> ! You can't use `\numexpr' in horizontal mode. >> >> > One of my favourite errors. Everytime it occurs I'm a bit puzzled, as > I've no general solution for this. I can only tell you what I do in such > a case. > > - check every parameter of the expression > > If the expression itself is ok > > - check the correct grouping of prior commands (boxes, conditionals,..) > - try to calculate the expression before you pass it > \newcount\Myscale > \Myscale\numexpr1000\LPscale\relax > ..[scale=\the\Myscale] > > But in the end it is more try and error than a systematic action. > If there is a more general approach to solve this, I would be happy to > hear it. > > Gr some day soon: \def\integer#1{\lua{tex.sprint(math.floor(#1))} scale=\integer{1000*\LPscale} Hans -- ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------