From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: Bidi reordering engine upgraded Date: Fri, 17 Oct 2014 16:30:05 +0300 Message-ID: <83vbni259e.fsf@gnu.org> References: "8338an2jcd.fsf@gnu.org" <5440F9BA.6030607@gmx.de> <54410094.3020507@gmx.at> <544117E3.4030201@gmx.de> Reply-To: Eli Zaretskii NNTP-Posting-Host: plane.gmane.org X-Trace: ger.gmane.org 1413552637 21983 80.91.229.3 (17 Oct 2014 13:30:37 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 17 Oct 2014 13:30:37 +0000 (UTC) Cc: rudalics@gmx.at, emacs-devel@gnu.org To: grischka Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Fri Oct 17 15:30:30 2014 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1Xf7bx-00023C-Pd for ged-emacs-devel@m.gmane.org; Fri, 17 Oct 2014 15:30:29 +0200 Original-Received: from localhost ([::1]:60548 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xf7bx-0006Mr-AX for ged-emacs-devel@m.gmane.org; Fri, 17 Oct 2014 09:30:29 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:37203) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xf7bn-0006Mm-Ay for emacs-devel@gnu.org; Fri, 17 Oct 2014 09:30:24 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xf7bi-0005RH-5m for emacs-devel@gnu.org; Fri, 17 Oct 2014 09:30:19 -0400 Original-Received: from mtaout20.012.net.il ([80.179.55.166]:53069) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xf7bh-0005R3-Uh for emacs-devel@gnu.org; Fri, 17 Oct 2014 09:30:14 -0400 Original-Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0NDL00E00BR6C900@a-mtaout20.012.net.il> for emacs-devel@gnu.org; Fri, 17 Oct 2014 16:30:12 +0300 (IDT) Original-Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0NDL00E9IC6CEF00@a-mtaout20.012.net.il>; Fri, 17 Oct 2014 16:30:12 +0300 (IDT) In-reply-to: <544117E3.4030201@gmx.de> X-012-Sender: halo1@inter.net.il X-detected-operating-system: by eggs.gnu.org: Solaris 10 X-Received-From: 80.179.55.166 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:175520 Archived-At: > Date: Fri, 17 Oct 2014 15:21:39 +0200 > From: grischka > Cc: emacs-devel@gnu.org > > martin rudalics wrote: > > > This is because to the human eye pixels are similar to points in math > > > (i.e.has location, does not have extent). Therefor, a mental > > "magnifying > > > glass" (in order to be useful) needs to preserve the point-like property > > > of pixels unaffected from the "zoom factor". > > > > > > Which means that what counts for line length is not number of pixels > > > but the spaces between. See line of length 10, magnified: > > > > > > 0 1 2 3 4 5 6 7 8 9 0 > > > * * * * * * * * * * * > > > > I doubt my eye (and whatever there's left behind it) would consider > > > > 0 > > * > > > > having zero extent. > > Nobody would consider a single pixel to mean anything in particular. > For that to happen it needs to be placed in relation to other pixels. > > For example two pixels can make a line already. We are talking about a single-pixel vertical line (whose height is more than 1 pixel). Such a line definitely means something.