From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/83368 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: underbraces slightly too narrow (with MkIV 2013.05.28) Date: Thu, 11 Jul 2013 14:48:57 +0200 Message-ID: <51DEA9B9.7050305@wxs.nl> References: <878v1e7hd1.fsf@approx.mit.edu> 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 1373546975 13535 80.91.229.3 (11 Jul 2013 12:49:35 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 11 Jul 2013 12:49:35 +0000 (UTC) To: ntg-context@ntg.nl Original-X-From: ntg-context-bounces@ntg.nl Thu Jul 11 14:49:37 2013 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 1UxGJU-0000Id-Ks for gctc-ntg-context-518@m.gmane.org; Thu, 11 Jul 2013 14:49:36 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id A56AC101EA; Thu, 11 Jul 2013 14:49:35 +0200 (CEST) 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 7nYujxzC-t7v; Thu, 11 Jul 2013 14:49:35 +0200 (CEST) Original-Received: from balder.ntg.nl (localhost [IPv6:::1]) by balder.ntg.nl (Postfix) with ESMTP id 7441C101E5; Thu, 11 Jul 2013 14:49:33 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id F09C0101E5 for ; Thu, 11 Jul 2013 14:49:31 +0200 (CEST) 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 a9JWD-w3zMv8 for ; Thu, 11 Jul 2013 14:49:30 +0200 (CEST) Original-Received: from filter2-til.mf.surf.net (filter2-til.mf.surf.net [194.171.167.218]) by balder.ntg.nl (Postfix) with ESMTP id C7AF7101E4 for ; Thu, 11 Jul 2013 14:49:24 +0200 (CEST) Original-Received: from smtp.ziggozakelijk.nl (D57D1DA2.static.ziggozakelijk.nl [213.125.29.162]) by filter2-til.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id r6BCnN2A021250 for ; Thu, 11 Jul 2013 14:49:23 +0200 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 11326-1713362 for ; Thu, 11 Jul 2013 14:49:22 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130620 Thunderbird/17.0.7 In-Reply-To: <878v1e7hd1.fsf@approx.mit.edu> X-Authenticated-User: hagen@controller-9 X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@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: 0TJX0NnuE - c918c5512e9f - 20130711 (trained as not-spam) X-Scanned-By: CanIt (www . roaringpenguin . com) on 194.171.167.218 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:83368 Archived-At: On 7/10/2013 2:02 PM, Sanjoy Mahajan wrote: > In certain cases, display-mathunderbraces are not quite wide enough. > Here's a minimal example: > > =================== > \starttext > > \placeformula\startformula > \underbrace{15\,\tf cm}_{L} > \stopformula > > \stoptext > =================== > > Using 2013.05.28 00:36 MKIV (from vanilla TL2013), the left brace tip > starts under the vertical bar of the "1", instead of enclosing the serif > as well. The right brace tip ends between the last two tines of the > "m", instead of enclosing the whole "m" and its serifs. > > With 2013.04.09 10:38 MKII, the brace tips extend just slightly beyond > the "15 cm", which is better. However, they seem slightly too close. > > As a test, I ran the comparable plain-TeX file through LuaTeX and PDFTeX. > > ================== > $$ > \underbrace{15\,\rm cm}_{L} > $$ > > \bye > ================== > > The gap between the right brace tip and the text is slightly greater > (with either LuaTeX or PDFTeX), and it looks right. > > (With the 2012.05.30 MKIV on live.contextgarden.net, the result is > similar to the Lua/PDFTeX versions, though not identical, and also looks > reasonable.) it has to do with the fact that we have opentype math fonts now and these are not compatible what you observe is the fact that we have a discrete number of sizes till we run out of them and go stretchable anyhow, i've now defined then in a different way (ok, some more trickery had to be applied as it's one of these aspects of open type math that still inherits old stuff) so in a next version you can do this: \setupmathstackers[vfenced][hoffset=10pt] is it looks like these commands have built-in \limits, these are now set for \overbrace \overparent \overbracket \overbar \underbrace \underparent \underbracket \underbar \doublebrace \doubleparent \doublebracket \doublebar Hans ----------------------------------------------------------------- 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 ___________________________________________________________________________________