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From: tlaronde@polynum.com
To: 9fans <9fans@9fans.net>
Subject: Re: [9fans] licence question
Date: Sun, 30 Jan 2022 14:56:19 +0100	[thread overview]
Message-ID: <YfaZA2NvLSJdFzWL@polynum.com> (raw)
In-Reply-To: <16435502450.AdbA0FB.623132@composer.9fans.topicbox.com>

Le Sun, Jan 30, 2022 at 08:44:05AM -0500, ibrahim via 9fans a écrit :
> On Sunday, 30 January 2022, at 8:55 AM, tlaronde wrote:
> > The lacking piece is the end: converting DVI to something else than PS
> and extending DVI to include drawing primitives so that there is a
> "MetaPost" generating DVI (Metadraw). The other points are already
> addressed.
> 
> Perhaps xdvi is a good start point to understand how to convert dvi to raw images. dvi isn't a ready to display format you have to prepare the missing glyphs (fonts). Knuth has provided a converter to make dvi files human readable and you task is to interpret this output. If you take a viewer as a start point you could store the fineshed rendering in a file instead of saving that. Like ps dvi is also a virtual machine code but much simpler.

There is nothing difficult in the task per se. But when adding a
new block of DVI commands, it has to be done with some care. METAFONT
is also a rasterizer, so the fundamental bits are already there to
obtain a rasterized image. But there are, too, converters to develop
to translate the glyphes shapes of alien fonts in something
METAFONT can understand---TeX only uses the metrics informations,
it doesn't care about what is drawn in the boxes, this is why one
can use easily PS fonts with TeX; rendering, when what has to be
drawn is involved, is another story...

And xdvi is the perfect example of the problem: it has a myriad of
dependencies.
-- 
        Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
                     http://www.kergis.com/
                    http://kertex.kergis.com/
                       http://www.sbfa.fr/
Key fingerprint = 0FF7 E906 FBAF FE95 FD89  250D 52B1 AE95 6006 F40C

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  reply	other threads:[~2022-01-30 13:56 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-27 22:43 ibrahim via 9fans
2022-01-27 22:48 ` hiro
2022-01-27 23:33   ` ibrahim via 9fans
2022-01-28  0:05     ` hiro
2022-01-28  0:42       ` ibrahim via 9fans
2022-01-28  0:46         ` ori
2022-01-28  1:14           ` ibrahim via 9fans
2022-01-28  3:23             ` Kurt H Maier via 9fans
2022-01-28 12:01               ` ibrahim via 9fans
2022-01-28 21:59                 ` hiro
2022-01-29 13:03                   ` ibrahim via 9fans
2022-01-29 13:24                     ` hiro
2022-01-29 14:08                       ` ibrahim via 9fans
2022-01-29 14:59                         ` sirjofri
2022-01-29 18:11                         ` Grant Defayette
2022-01-29 19:00                           ` ibrahim via 9fans
2022-01-29 20:43                         ` hiro
2022-01-29 21:32                           ` ibrahim via 9fans
2022-01-29 21:42                             ` hiro
2022-01-29 22:23                               ` ibrahim via 9fans
2022-01-29 23:14                                 ` sirjofri
2022-01-29 23:27                                   ` hiro
2022-01-29 23:36                                   ` ibrahim via 9fans
2022-01-30  0:08                                     ` hiro
2022-01-30  1:45                                       ` ron minnich
2022-01-30  2:18                                         ` ibrahim via 9fans
2022-01-30 21:00                                           ` ron minnich
2022-02-01 15:08                                             ` ibrahim via 9fans
2022-02-01 17:06                                               ` Dan Cross
2022-01-29 22:14                         ` Bakul Shah
2022-01-29 22:40                           ` ibrahim via 9fans
2022-02-04 15:30                         ` Kent R. Spillner
2022-02-04 16:17                           ` Grant Defayette
2022-02-04 16:29                           ` ibrahim via 9fans
2022-02-04 21:12                             ` sirjofri
2022-02-04 17:48                           ` Kurt H Maier via 9fans
2022-02-05  0:08                             ` Frank D. Engel, Jr.
2022-02-05 16:47                               ` hiro
2022-01-29 14:26                     ` David Leimbach via 9fans
2022-02-01 14:12                       ` Dan Cross
2022-02-01 22:47                         ` hiro
2022-02-02 13:22                           ` Wes Kussmaul
2022-02-02 16:25                             ` ori
2022-02-02 18:22                               ` ron minnich
2022-02-02 19:00                                 ` ibrahim via 9fans
2022-01-29 16:15                     ` Wes Kussmaul
2022-01-29 16:56                     ` Bakul Shah
2022-01-29 17:17                       ` ori
2022-01-29 18:14                       ` ibrahim via 9fans
2022-01-29 18:58                     ` cinap_lenrek
2022-01-29 19:23                       ` ibrahim via 9fans
2022-01-29 20:48                         ` hiro
2022-01-29 21:18                           ` Steve Simon
2022-01-29 21:34                             ` hiro
2022-01-29 21:43                             ` ibrahim via 9fans
2022-01-29 22:44                               ` hiro
2022-01-29 23:26                                 ` ibrahim via 9fans
2022-01-30  7:55                           ` tlaronde
2022-01-30 13:44                             ` ibrahim via 9fans
2022-01-30 13:56                               ` tlaronde [this message]
2022-01-28  3:14 ` Lucio De Re

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