From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/43875 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: fitting a picture to the available space Date: Thu, 11 Sep 2008 09:28:42 +0200 Message-ID: <48C8C8AA.8080003@wxs.nl> References: <396E487E-2550-48FB-BF43-BC51ED2388F4@uni-bonn.de> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1221118256 10523 80.91.229.12 (11 Sep 2008 07:30:56 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 11 Sep 2008 07:30:56 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Thu Sep 11 09:31:47 2008 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 lo.gmane.org with esmtp (Exim 4.50) id 1KdgeF-0000lj-Bg for gctc-ntg-context-518@m.gmane.org; Thu, 11 Sep 2008 09:31:27 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 5EC541FE3C; Thu, 11 Sep 2008 09:30:25 +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 29422-03-3; Thu, 11 Sep 2008 09:29:44 +0200 (CEST) Original-Received: from ronja.vet.uu.nl (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 3A2951FCB1; Thu, 11 Sep 2008 09:29:31 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 5531C1FC7A for ; Thu, 11 Sep 2008 09:29:26 +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 27918-02-14 for ; Thu, 11 Sep 2008 09:28:44 +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 ESMTP id 8744A1FE60 for ; Thu, 11 Sep 2008 09:28:44 +0200 (CEST) Original-Received: from [10.100.1.100] (unverified [10.100.1.100]) by controller-1 (SurgeMail 3.9e) with ESMTP id 18314-1840426 for ; Thu, 11 Sep 2008 09:28:43 +0200 User-Agent: Thunderbird 2.0.0.16 (Windows/20080708) In-Reply-To: <396E487E-2550-48FB-BF43-BC51ED2388F4@uni-bonn.de> X-Originating-IP: 10.100.1.100 X-Authenticated-User: hagen@controller-1 X-Virus-Scanned: amavisd-new at ntg.nl X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.9 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:43875 Archived-At: Thomas A. Schmitz wrote: > Hi guys, > > I'm pulling my hair out. I'm trying to set up an automatism to fit > pictures to the available space on a slide. I need to consider three > parameters: > > 1. If the user supplies a value for width= or height= , use this value > (captured in a macro); > > 2. respect the maxwidth and maxheight which must not exceed the frame; > > 3. if the picture is smaller than the available space, blow it up so > that it reaches the maxwidth or maxheight (but doesn't exceed either). > > factor=max or =fit does not work because it allows pictures to exceed > one of the maximum values. About a year ago Giuseppe Bilotta wrote a > message which I append; it describes my problem. Is there a generic > solution for this problem? If there is, I'll gladly take it; if there > isn't, I thought I had a solution but may need help with expanding and > conditionals, then I'll be back with more questions. > > Anyway, good night all, and thanks. \starttext \framed[width=5cm,height4cm]{\externalfigure[mill.png][maxwidth=3cm,maxheight=4cm,width=10cm]} \stoptext seems to work > Thomas > >> Subject: Re: [NTG-context] factor=fit images don't fit >> Sunday, July 22, 2007 Hans Hagen wrote: >> >>> the fit assumes operating on a page not in a box; >> Ah, didn't know that. I couldn't even tell from the sources, >> since it uses enclosing box dimensions and not page or paper >> sizes. I suspect the logic is broken at the page level too >> though, let me explain why. >> >> Currently, if I understand the code correctly, factor=fit >> expands the figure to have its major direction fit, while >> factor=max expands the figure to have its minor direction >> fit. >> >> Instead, the behavior I would expect from fit (resp. max) is >> for the *expansion ratio* to be the minimum (resp. maximum) >> of the expansion ratios in the two directions (not the sizes >> in those directions, but the ratio between the sizes of the >> figure and the container). The difference is noticeable when >> the container and contained have different aspect ratios. >> >> Consider for example a 20x30mm figure in a 50x150mm page >> (strange numbers, just used to show what I mean): with the >> current code, using 'fit' would consider the largest >> dimension (30) and thus calculate a factor of 150/30 = 5, >> but this gives us an image which is 100x150mm, i.e. an image >> that doesn't fit! Whereas, if we computed the ratios 50/20 = >> 2.5 and 150/30 = 5, we would know that the ratio to be >> picked was 2.5 in 'fit' and 5 in 'max'. >> >> Or I misintepreting the meaning of 'fit' and 'max'? >> >>> an alternative is: >>> \framed[width=5cm,height4cm] >>> >>> {\externalfigure[mill.png][maxwidth=4cm,maxheight=5cm,width=10cm]} >>> i.e. setting the maximum values >> I hadn't thought about using width and maxwidth (and >> maxheight) at the same time, thanks. Of course, I'd rather >> have 'fit' and 'max' usable in boxes :) > ___________________________________________________________________________________ > 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 : https://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ -- ----------------------------------------------------------------- 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 ----------------------------------------------------------------- ___________________________________________________________________________________ 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 : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________