From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/75102 Path: news.gmane.org!not-for-mail From: Hans Hagen Newsgroups: gmane.comp.tex.context Subject: Re: random background picture in metafun Date: Thu, 15 Mar 2012 19:06:00 +0100 Message-ID: <4F622F88.1080903@wxs.nl> References: <4F5F5DA1.1050202@uni-bonn.de> <4F5F76CC.1090800@gmx.net> <4F5F90D6.5040009@gmx.net> <4F61B400.4020607@uni-bonn.de> 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 1331834794 9022 80.91.229.3 (15 Mar 2012 18:06:34 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 15 Mar 2012 18:06:34 +0000 (UTC) Cc: "Thomas A. Schmitz" To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Thu Mar 15 19:06:30 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 1S8F4B-0007y7-0L for gctc-ntg-context-518@m.gmane.org; Thu, 15 Mar 2012 19:06:23 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 10CDB101E8; Thu, 15 Mar 2012 19:06:22 +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 F0XV+MlQwi41; Thu, 15 Mar 2012 19:06:21 +0100 (CET) Original-Received: from [127.0.0.1] (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 25E99101DF; Thu, 15 Mar 2012 19:06:20 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 36548101DF for ; Thu, 15 Mar 2012 19:06:19 +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 JMGiAJ4TL20a for ; Thu, 15 Mar 2012 19:06:15 +0100 (CET) Original-Received: from filter3-nij.mf.surf.net (filter3-nij.mf.surf.net [195.169.124.154]) by balder.ntg.nl (Postfix) with ESMTP id 71B9A101DE for ; Thu, 15 Mar 2012 19:06:15 +0100 (CET) Original-Received: from smtp.ziggozakelijk.nl (D57D1DA2.static.ziggozakelijk.nl [213.125.29.162]) by filter3-nij.mf.surf.net (8.14.3/8.14.3/Debian-5+lenny1) with ESMTP id q2FI6Dh5023386 for ; Thu, 15 Mar 2012 19:06:14 +0100 X-Default-Received-SPF: pass (skip=loggedin (res=PASS)) x-ip-name=10.100.1.100; Original-Received: from [10.100.1.100] (unverified [10.100.1.100]) by pragma-net.nl (SurgeMail 5.3h2) with ESMTP (TLS) id 1609-1713362 for multiple; Thu, 15 Mar 2012 19:06:09 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 In-Reply-To: <4F61B400.4020607@uni-bonn.de> 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=03; city=Hattem; latitude=52.4667; longitude=6.0667; http://maps.google.com/maps?q=52.4667,6.0667&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 0dGJS6e2A - 46bf97d3eceb - 20120315 (trained as not-spam) X-Scanned-By: CanIt (www . roaringpenguin . com) on 195.169.124.154 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:75102 Archived-At: On 15-3-2012 10:18, Thomas A. Schmitz wrote: > 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... Ah, but keep in mind that the random number is stored in the tuc file! So, as long as that file is not wiped, you get the same random number initialization. Imagine what would happen if we would not do that. So, just erase the tuc if you want another seed. 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 ___________________________________________________________________________________