Bug #64889 for Tk: Bug in $canvas->createRectangle

Tue Jan 18 12:02:11 2011 KWittrock [...] web.de - Ticket created

Subject:	Bug in $canvas->createRectangle
Date:	Tue, 18 Jan 2011 17:28:55 +0100
To:	bug-Tk [...] rt.cpan.org
From:	"K. Wittrock" <KWittrock [...] web.de>

The attached program shows a problem with $canvas->createRectangle: The displayed rectangle is correct with option -width => 1. Whenever -width is increased by 1, the total width of the rectangle is increased by 1, while the interior is reduced by 1. Please remember that option -width sets the line width of the outline, not the width of the rectangle itself. The values returned by method coords are correct, but the display is wrong. I also include a section of a screendump taken from a magnified view of the canvas. Version info: OpenSuse 11.1, perl v5.10.0 built for x86_64-linux-thread-multi, $Tk::VERSION 804.028. Windows XP with SP3, perl v5.10.1 built for MSWin32-x86-multi-thread, $Tk::VERSION 804.028. Kind regards Klaus Wittrock

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Wed Jan 19 09:05:10 2011 KWittrock [...] web.de - Correspondence added

Subject:	Re: [rt.cpan.org #64889] Bug in $canvas->createRectangle
Date:	Wed, 19 Jan 2011 15:04:49 +0100
To:	bug-Tk [...] rt.cpan.org
From:	"K. Wittrock" <KWittrock [...] web.de>

I extended my demo program and then I saw my misunderstanding. I took it for granted that the outline of a rectangle is inside the rectangle's area. Actually the rectangle is implemented as a special case of a polygon. So nearly everthing works as designed. The only exception concerns -width => 0. I don't see any reason why the interior shouldn't cover the whole rectangle in this case. On the other hand, the current implementation fits to the rule that reducing the width by 1 will increase the width of the interior by 1. And as a workaround I can use the default -width => 1 and set the outline color equal to the fill color. Please remove my bug report from the bug list. I apologize for any inconvenience caused. Kind regards Klaus Wittrock

Fri Jan 21 08:07:30 2011 DJIBEL [...] cpan.org - Correspondence added

Le Mer 19 Jan 2011 09:05:10, KWittrock@web.de a écrit : Show quoted text

> I extended my demo program and then I saw my misunderstanding. I took > it for granted that the outline of a rectangle is inside the > rectangle's area. Actually the rectangle is implemented as a > special case of a polygon. So nearly everthing works as designed. > > The only exception concerns -width => 0. I don't see any reason why > the interior shouldn't cover the whole rectangle in this case. On > the other hand, the current implementation fits to the rule that > reducing the width by 1 will increase the width of the interior by > 1. And as a workaround I can use the default -width => 1 and set > the outline color equal to the fill color. > > Please remove my bug report from the bug list. I apologize for any > inconvenience caused. > > Kind regards > > Klaus Wittrock > >

well !

Fri Jan 21 08:07:31 2011 The RT System itself - Status changed from 'new' to 'open'

Tue Jun 14 02:36:29 2011 SREZIC [...] cpan.org - Status changed from 'open' to 'rejected'