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Um, how is this different from a normal coordinate system? It sounds like semantics to me; I don't see how one would program it any differently from a normal coordinate system where the upper-left is (0, 0). - furrykef ( Talk at me) 02:35, 29 October 2005 (UTC)
A while ago I fixed the capitalization to Quickdraw, which is what Apple actually used in their docs. Somebody seems to have had some fun reverting that to the wrong spelling again. Why???
Umm ... nevermind. Looks like my copy of "New Inside Macintosh" actually spells it QuickDraw. Guess that changed over time.
Regarding the recent stuff added about the internal mechanism in regions - is it too detailed? Actually I found it quite interesting, and haven't changed it much, but in many respects it's kinda not all that relevant to QuickDraw HOW these regions work, and besides, as they are not documented publicly by Apple, is it really our job to do so? Who is the information going to help? Graham 06:11, 14 January 2006 (UTC)
The part which says
"Regions are implemented using both vertical and horizontal compression. A region is described as a series of horizontal lines ("rasters"), with the interior and exterior portions of the region within a line described by their run length (the number of pixels in the run). Identical adjacent runs are efficiently encoded by a line repeat count"
is in contraddiction with how the region internals are described at a site (
"Convert PICTs to Regions". MacTech. Archived from
the original on 2016-03-03. {{
cite web}}
: Unknown parameter |dead-url=
ignored (|url-status=
suggested) (
help)) I found.
Not being an expert of the matter, I wouldn't know for sure who's correct and who's not, however at that site you can find working code which deals with the representation described there, which I assume works as expected, and this would mean that effectively the description that wikipedia sports now is incorrect
The description on the MacTech site linked above is correct. The flaws in the current text are as follows:
I've done some reverse-engineering of the Region format myself, and then later worked directly with it when I was working on 2D hardware graphics acceleration at Apple. -- Drewthaler 07:44, 14 September 2007 (UTC)
My understanding is that Bill wrote most if not all of QuickDraw (and was very proprietorial over it). Is there therefore fair to credit Andy first? I'm not saying Andy didn't contribute, but I'm sure Andy would be the first person to say that QuickDraw was Bill's baby. 80.93.170.99 12:30, 7 March 2007 (UTC)
The statement that "In Mac OS X v10.8, QuickDraw support was removed from the operating system" is clearly false. As far as I know, programs written with QuickDraw continue to work in OS 10.11. The next sentence, "Applications using QuickDraw will still run under OS X 10.8; however, the current versions of Xcode and the OS X SDK do not contain the header files to compile such programs" is more nearly right, however it was the 10.7 SDK that first removed QuickDraw. I can't find a reference for that fact, so if I made that change, someone could justifiably complain that it's original research.
JWWalker ( talk) 00:45, 7 January 2016 (UTC)
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The result of the move request was: not moved. The video game now has an endorsed proposed deletion tag on it; I solved the issue with a better hatnote that points to the disambiguation. – wbm1058 ( talk) 14:25, 18 August 2018 (UTC)
QuickDraw →
QuickDraw (graphics) – see
video game and
disambiguation page
209.52.88.46 (
talk)
15:19, 9 August 2018 (UTC)
This is the
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QuickDraw article. This is not a forum for general discussion of the article's subject. |
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Um, how is this different from a normal coordinate system? It sounds like semantics to me; I don't see how one would program it any differently from a normal coordinate system where the upper-left is (0, 0). - furrykef ( Talk at me) 02:35, 29 October 2005 (UTC)
A while ago I fixed the capitalization to Quickdraw, which is what Apple actually used in their docs. Somebody seems to have had some fun reverting that to the wrong spelling again. Why???
Umm ... nevermind. Looks like my copy of "New Inside Macintosh" actually spells it QuickDraw. Guess that changed over time.
Regarding the recent stuff added about the internal mechanism in regions - is it too detailed? Actually I found it quite interesting, and haven't changed it much, but in many respects it's kinda not all that relevant to QuickDraw HOW these regions work, and besides, as they are not documented publicly by Apple, is it really our job to do so? Who is the information going to help? Graham 06:11, 14 January 2006 (UTC)
The part which says
"Regions are implemented using both vertical and horizontal compression. A region is described as a series of horizontal lines ("rasters"), with the interior and exterior portions of the region within a line described by their run length (the number of pixels in the run). Identical adjacent runs are efficiently encoded by a line repeat count"
is in contraddiction with how the region internals are described at a site (
"Convert PICTs to Regions". MacTech. Archived from
the original on 2016-03-03. {{
cite web}}
: Unknown parameter |dead-url=
ignored (|url-status=
suggested) (
help)) I found.
Not being an expert of the matter, I wouldn't know for sure who's correct and who's not, however at that site you can find working code which deals with the representation described there, which I assume works as expected, and this would mean that effectively the description that wikipedia sports now is incorrect
The description on the MacTech site linked above is correct. The flaws in the current text are as follows:
I've done some reverse-engineering of the Region format myself, and then later worked directly with it when I was working on 2D hardware graphics acceleration at Apple. -- Drewthaler 07:44, 14 September 2007 (UTC)
My understanding is that Bill wrote most if not all of QuickDraw (and was very proprietorial over it). Is there therefore fair to credit Andy first? I'm not saying Andy didn't contribute, but I'm sure Andy would be the first person to say that QuickDraw was Bill's baby. 80.93.170.99 12:30, 7 March 2007 (UTC)
The statement that "In Mac OS X v10.8, QuickDraw support was removed from the operating system" is clearly false. As far as I know, programs written with QuickDraw continue to work in OS 10.11. The next sentence, "Applications using QuickDraw will still run under OS X 10.8; however, the current versions of Xcode and the OS X SDK do not contain the header files to compile such programs" is more nearly right, however it was the 10.7 SDK that first removed QuickDraw. I can't find a reference for that fact, so if I made that change, someone could justifiably complain that it's original research.
JWWalker ( talk) 00:45, 7 January 2016 (UTC)
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Cheers.— InternetArchiveBot ( Report bug) 21:50, 9 December 2017 (UTC)
The result of the move request was: not moved. The video game now has an endorsed proposed deletion tag on it; I solved the issue with a better hatnote that points to the disambiguation. – wbm1058 ( talk) 14:25, 18 August 2018 (UTC)
QuickDraw →
QuickDraw (graphics) – see
video game and
disambiguation page
209.52.88.46 (
talk)
15:19, 9 August 2018 (UTC)