From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/79537 Path: news.gmane.org!not-for-mail From: Sietse Brouwer Newsgroups: gmane.comp.tex.context Subject: Re: error when using externalfigure Date: Mon, 26 Nov 2012 16:01:51 +0100 Message-ID: References: <50B33B49.9070206@wxs.nl> <50B36148.9070008@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 1353942163 32197 80.91.229.3 (26 Nov 2012 15:02:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 26 Nov 2012 15:02:43 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Mon Nov 26 16:02:55 2012 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Td0Cv-0000gt-OP for gctc-ntg-context-518@m.gmane.org; Mon, 26 Nov 2012 16:02:49 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 512F910290; Mon, 26 Nov 2012 16:02:38 +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 adcgvgUYpMbh; Mon, 26 Nov 2012 16:02:31 +0100 (CET) Original-Received: from balder.ntg.nl (localhost [IPv6:::1]) by balder.ntg.nl (Postfix) with ESMTP id 6A2341027D; Mon, 26 Nov 2012 16:02:31 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id E5A661027D for ; Mon, 26 Nov 2012 16:02:29 +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 b7rM3ba72eDF for ; Mon, 26 Nov 2012 16:02:24 +0100 (CET) Original-Received: from filter2-utr.mf.surf.net (filter2-utr.mf.surf.net [195.169.124.153]) by balder.ntg.nl (Postfix) with ESMTP id D0E751027B for ; Mon, 26 Nov 2012 16:02:24 +0100 (CET) Original-Received: from mail-ia0-f169.google.com (mail-ia0-f169.google.com [209.85.210.169]) by filter2-utr.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id qAQF2MKO003110 for ; Mon, 26 Nov 2012 16:02:23 +0100 Original-Received: by mail-ia0-f169.google.com with SMTP id r4so10009333iaj.14 for ; Mon, 26 Nov 2012 07:02:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; bh=A3YreavDcpPDFZ7rbAqtbP15N5u6soc/8lRf6asEtv4=; b=Pr3321kjLJBmUB7oWmcJrC/17GJVaaBpMC871JcgiybU5DrssOU4Qy1XPlMG5N/iz0 AhQrhn0QZqU088MVQ/B0tkr86FbQ9NDNQ63QL9Hdj3IQLc8L1brbzQl/xG3zD6RML9Om MfAuRtlStnnSvkMKQR/mB8rOIPlSxw0ncCd/6JsUHIm8qrfM5pO9Ju2WeB2O0l9K/+RN yPhaTjVaCVrkGjw7gigfy+x4PxPNTIrzXjVtFhP7U4uRvfnBKhsR1oXGiRnz1/ak3Oiy wsaG3uuoGGrSYZzN3nQbq35Ud4i2Z+EX8dU0g8O4bdvyqdCmm1D7Knv0dF5aQnqdWc2M XHSQ== Original-Received: by 10.50.149.225 with SMTP id ud1mr11678152igb.32.1353942142056; Mon, 26 Nov 2012 07:02:22 -0800 (PST) Original-Received: by 10.64.5.138 with HTTP; Mon, 26 Nov 2012 07:01:51 -0800 (PST) In-Reply-To: <50B36148.9070008@wxs.nl> X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=209.85.210.169; country=US; region=CA; city=Mountain View; postalcode=94043; latitude=37.4192; longitude=-122.0574; metrocode=807; areacode=650; http://maps.google.com/maps?q=37.4192,-122.0574&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 04Isf2n55 - 4920f8df8c0b - 20121126 (trained as not-spam) X-Scanned-By: CanIt (www . roaringpenguin . com) on 195.169.124.153 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:79537 Archived-At: This seems to me a case of garbage in, garbage out; I'd say it's the script's job, rather than ConTeXt's, to ensure the images have the correct dpi to get a reasonable width in inches. (Brr. I hate inches. Disgusting, Mars-mission-wrecking way of measuring things.) Here is some pseudocode. You'd still need a way to get image.width_in_pixels and image.dpi from the image; I daresay either `convert` or `exiftool` can do the job. See also this recent mail to the list by Guy Stalnaker: http://archive.contextgarden.net/message/20121123.232556.bf205641.en.html projected_width = image.width_in_pixels / image.dpi if projected_width > max_width_in_inches then required_dpi = image.width_in_pixels / max_width_in_inches shell('convert --density %f %s', required_dpi, image_name) end Cheers, Sietse On Mon, Nov 26, 2012 at 1:32 PM, Hans Hagen wrote: > On 11/26/2012 11:00 AM, luigi scarso wrote: >> >> On Mon, Nov 26, 2012 at 10:50 AM, Hans Hagen wrote: >>> >>> On 11/26/2012 10:36 AM, luigi scarso wrote: >>>> >>>> >>>> On Mon, Nov 26, 2012 at 10:20 AM, Pavel Dohnal >>>> wrote: >>>>> >>>>> >>>>> Hello, >>>>> I have a big context source file which contains pictures from different >>>>> sources. The problem is, that there are some pictures the context >>>>> cannot >>>>> process. It displays an error message and ends. I run the context from >>>>> another script in batchmode. After finishing, the context creates a PDF >>>>> file, which contains this problematic picture but the pdf is broken. It >>>>> does >>>>> not have numbers in the table of contents and it is not arranged by >>>>> setup. >>>>> Here is a minimal example: >>>>> \starttext >>>>> >>>>> >>>>> \externalfigure[http://cdn-locations-images.tripomatic.com/img-poi1295-5ZTynx-s.jpg][width=26.5mm] >>>>> \stoptext >>>> >>>> >>>> >>>> >>>> when I save the jpg as eps from gimp >>>> I see >>>> width = 6096,00 >>>> height=4064,00 >>>> >>>> The first value is off for TeX. >>> >>> >>> >>> if i print the values from the img object i get >>> >>> 17344.8pt >>> 11563.2pt >>> >>> so the problem is deep down in the jpg reader ... the image is crippled >>> in >>> the sense that it has no valid resolution information >>> >>> something for hartmut to check in the img lib >> >> >> Hm, I'm not sure. It's an image that could be correct, but TeX cannot >> manage it. >> It has 240x160 pixels and 1ppi, so it's 6,096 meters x 4,06400meters >> and 6 meters are too much for TeX (which still has its limits around >> 5meters) >> It's ok to print poster maybe, but then TeX is not the right tool. > > > yes, but the 1,1 resolution prevents us from doing anything useful, i.e. we > could for instance have something > > if xresolution < 72 then xresolution = 72 end > > but I'm not sure what the pdf backend will do as then the uses resolution > for front and backend differ too much > > i'll add an overflow check but keep in mind that in that case scaling is > bases on the limited size > > > ----------------------------------------------------------------- > 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 > ___________________________________________________________________________________ ___________________________________________________________________________________ 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 ___________________________________________________________________________________