From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/75081 Path: news.gmane.org!not-for-mail From: "Thomas A. Schmitz" Newsgroups: gmane.comp.tex.context Subject: Re: random background picture in metafun Date: Thu, 15 Mar 2012 10:18:56 +0100 Message-ID: <4F61B400.4020607@uni-bonn.de> References: <4F5F5DA1.1050202@uni-bonn.de> <4F5F76CC.1090800@gmx.net> <4F5F90D6.5040009@gmx.net> 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: dough.gmane.org 1331813734 19381 80.91.229.3 (15 Mar 2012 12:15:34 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 15 Mar 2012 12:15:34 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Thu Mar 15 13:15:32 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 1S89aZ-0007oh-4e for gctc-ntg-context-518@m.gmane.org; Thu, 15 Mar 2012 13:15:27 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id E6082101F6; Thu, 15 Mar 2012 13:15:21 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 1uL-zyn6RpDx; Thu, 15 Mar 2012 13:15:20 +0100 (CET) Original-Received: from [127.0.0.1] (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 1247D101E7; Thu, 15 Mar 2012 13:15:20 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 37691101DE for ; Thu, 15 Mar 2012 13:15:17 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 2SQ1Fme1PIDV for ; Thu, 15 Mar 2012 13:15:16 +0100 (CET) Original-Received: from submission1-til.mf.surf.net (submission1-til.mf.surf.net [194.171.167.212]) by balder.ntg.nl (Postfix) with ESMTP id CE602101E0 for ; Thu, 15 Mar 2012 13:15:15 +0100 (CET) Original-Received: from filter3-ams.mf.surf.net (filter3-ams-v6.mf.surf.net [IPv6:2001:610:1:80ab:192:87:102:71]) by submission1-til.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id q2FAJ85m020429 for ; Thu, 15 Mar 2012 11:19:08 +0100 Original-Received: from uni-bonn.de (mail.uni-bonn.de [131.220.15.113]) by filter3-ams.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id q2FAJBrr021704 for ; Thu, 15 Mar 2012 11:19:13 +0100 Original-Received: from [87.178.24.71] (account tschmit1@uni-bonn.de HELO [192.168.0.26]) by fe2.uni-bonn.de (CommuniGate Pro SMTP 5.4.4) with ESMTPSA id 12197087 for ntg-context@ntg.nl; Thu, 15 Mar 2012 10:18:56 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120216 Thunderbird/10.0.1 In-Reply-To: <4F5F90D6.5040009@gmx.net> X-Bayes-Prob: 0.0596 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=131.220.15.113; country=DE; region=07; city=Bonn; latitude=50.7333; longitude=7.1000; http://maps.google.com/maps?q=50.7333,7.1000&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 0LGJKjbwq - cd0c8dbf5932 - 20120315 (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: 2.1.12 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 Xref: news.gmane.org gmane.comp.tex.context:75081 Archived-At: On 03/13/2012 07:24 PM, Peter Rolf wrote: >> Actually, round (uniformdeviate(nopics-1)) does not give equal weightage >> > to 1 and nofpics. A better solution is >> > >> > n:= floor(uniformdeviate(nofpics)) + 1; >> > > :-) > > I used 'floor' in my prior tests, but changed it to 'round' because of > the very small chance of getting the highest number (at least with my > formula). > > Let's hope, nobody has wikified my bad maths;-) > > >> > which gives a uniform weight to all numbers. Hmm, I absolutely stink at math, but after a few days of testing: the "randomness" is a bit disappointing. All my presentations start more or less with the same set of background pictures, and since most have < 22 slides, some slides never come up in the rotation. Is there a way to provide metafun with a random seed, say the decimal digit of pi corresponding to the rounded number of my cpu's temperature (just kidding)? Or maybe a lua solution would be nice, metafun seems to be a bit to conservative in its choice of random numbers... Thomas ___________________________________________________________________________________ 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 ___________________________________________________________________________________