From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/71632 Path: news.gmane.org!not-for-mail From: "Meer, H. van der" Newsgroups: gmane.comp.tex.context Subject: metapost not adding picture Date: Sun, 9 Oct 2011 20:01:43 +0000 Message-ID: <7DB87D17-D0EF-4C28-94A9-F9595B89F603@uva.nl> 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: dough.gmane.org 1318190539 28008 80.91.229.12 (9 Oct 2011 20:02:19 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Sun, 9 Oct 2011 20:02:19 +0000 (UTC) To: NTG ConTeXt Original-X-From: ntg-context-bounces@ntg.nl Sun Oct 09 22:02:15 2011 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1RCzZe-0004JT-VZ for gctc-ntg-context-518@m.gmane.org; Sun, 09 Oct 2011 22:02:15 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 02FCCCB007; Sun, 9 Oct 2011 22:02:14 +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 xDaRadTjorwa; Sun, 9 Oct 2011 22:02:01 +0200 (CEST) Original-Received: from balder.ntg.nl (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 4E988CAFF0; Sun, 9 Oct 2011 22:02:01 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 09AF4CAFF0 for ; Sun, 9 Oct 2011 22:01:59 +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 hGn+oAKuESWB for ; Sun, 9 Oct 2011 22:01:46 +0200 (CEST) Original-Received: from filter3-til.mf.surf.net (filter3-til.mf.surf.net [194.171.167.219]) by balder.ntg.nl (Postfix) with ESMTP id B0D3DCA680 for ; Sun, 9 Oct 2011 22:01:46 +0200 (CEST) Original-Received: from jansen.uva.nl (jansen.uva.nl [146.50.108.229]) by filter3-til.mf.surf.net (8.14.3/8.14.3/Debian-5+lenny1) with ESMTP id p99K1i1Z008916 for ; Sun, 9 Oct 2011 22:01:45 +0200 Original-Received: from ketelaar.uva.nl ([fe80::cc61:4c73:c438:df97]) by jansen.uva.nl ([146.50.108.229]) with mapi id 14.01.0289.001; Sun, 9 Oct 2011 22:01:44 +0200 Thread-Topic: metapost not adding picture Thread-Index: AQHMhr5EsTwa8wYn20eM/YSdS+cqkQ== Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [82.95.102.36] Content-ID: <83C4C5E670CF6D4DB10C957749B15487@uva.nl> X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=146.50.108.229; country=NL; region=07; city=Amsterdam; latitude=52.3500; longitude=4.9167; http://maps.google.com/maps?q=52.3500,4.9167&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 0eFGI1INU - 8d15f81a9d13 - 20111009 X-Scanned-By: CanIt (www . roaringpenguin . com) on 194.171.167.219 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:71632 Archived-At: I have this question on the implementation of metapost. The following program ends in an error: \startMPpage picture v; draw origin--(1cm,1cm); v = currentpicture; clearit; draw (1cm,0)--(0,1cm); currentpicture := currentpicture + v; \stopMPpage The error is: ! Not implemented: (picture)+(picture). Yet Knuth's metafont book in Chapter 13 tells me, quote: "Pictures can be added or subtracted;" Is the current metafont implementation lacking this feature? Will it be implemented in the near future? Hans van der Meer ___________________________________________________________________________________ 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 ___________________________________________________________________________________