* METAFUN's randomized operator's seed
@ 2011-08-03 13:19 Marcin Borkowski
2011-08-03 13:48 ` Peter Rolf
2011-08-03 13:53 ` Aditya Mahajan
0 siblings, 2 replies; 6+ messages in thread
From: Marcin Borkowski @ 2011-08-03 13:19 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi,
I noticed that each time I recompile a document using randomized the
result is the same, so presumably the random seed is also the same. I
guess this is intentional. My questions are:
* Does the random seed value depend on a checksum of the tex file or
something like this?
* How to change it (e.g., to make it depend on the compile time or
whatever)?
Regards,
--
Marcin Borkowski
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* Re: METAFUN's randomized operator's seed
2011-08-03 13:19 METAFUN's randomized operator's seed Marcin Borkowski
@ 2011-08-03 13:48 ` Peter Rolf
2011-08-03 14:07 ` Procházka Lukáš Ing. - Pontex s. r. o.
2011-08-03 13:53 ` Aditya Mahajan
1 sibling, 1 reply; 6+ messages in thread
From: Peter Rolf @ 2011-08-03 13:48 UTC (permalink / raw)
To: mailing list for ConTeXt users
Am 03.08.2011 15:19, schrieb Marcin Borkowski:
> Hi,
>
> I noticed that each time I recompile a document using randomized the
> result is the same, so presumably the random seed is also the same. I
> guess this is intentional. My questions are:
> * Does the random seed value depend on a checksum of the tex file or
> something like this?
Hi,
it's derived from system time and stored in the *.tuc-file (see
definition of \setuprandomize). As long as this file is not rewritten,
you get the same random seed.
> * How to change it (e.g., to make it depend on the compile time or
> whatever)?
>
Something like (untested)
\setuprandomize[\normaltime]
I guess a call after \starttext will do.
> Regards,
>
Peter
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* Re: METAFUN's randomized operator's seed
2011-08-03 13:19 METAFUN's randomized operator's seed Marcin Borkowski
2011-08-03 13:48 ` Peter Rolf
@ 2011-08-03 13:53 ` Aditya Mahajan
1 sibling, 0 replies; 6+ messages in thread
From: Aditya Mahajan @ 2011-08-03 13:53 UTC (permalink / raw)
To: mailing list for ConTeXt users
On Wed, 3 Aug 2011, Marcin Borkowski wrote:
> Hi,
>
> I noticed that each time I recompile a document using randomized the
> result is the same, so presumably the random seed is also the same. I
> guess this is intentional. My questions are:
> * Does the random seed value depend on a checksum of the tex file or
> something like this?
AFAIK, no. But the seed is stored in tuc file. Grep for randomseed.
> * How to change it (e.g., to make it depend on the compile time or
> whatever)?
Delete the tuc file and recompile (or compile using --purge).
Aditya
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* Re: METAFUN's randomized operator's seed
2011-08-03 13:48 ` Peter Rolf
@ 2011-08-03 14:07 ` Procházka Lukáš Ing. - Pontex s. r. o.
2011-08-03 14:22 ` Peter Rolf
0 siblings, 1 reply; 6+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2011-08-03 14:07 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hello,
> \setuprandomize[\normaltime]
>
> I guess a call after \starttext will do.
>
> Peter
I tried it as I was just about to solve the same problem; it seems to work in condition that *at least one minute elapses between two runs*.
BTW, what exactly does \normaltime expand to? Does it contain seconds as well?
Where to find some more info about \normaltime?
Best regards,
Lukas
--
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz]
Bezová 1658
147 14 Praha 4
Tel: +420 244 062 238
Fax: +420 244 461 038
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* Re: METAFUN's randomized operator's seed
2011-08-03 14:07 ` Procházka Lukáš Ing. - Pontex s. r. o.
@ 2011-08-03 14:22 ` Peter Rolf
2011-08-03 14:27 ` Procházka Lukáš Ing. - Pontex s. r. o.
0 siblings, 1 reply; 6+ messages in thread
From: Peter Rolf @ 2011-08-03 14:22 UTC (permalink / raw)
To: mailing list for ConTeXt users
Am 03.08.2011 16:07, schrieb Procházka Lukáš Ing. - Pontex s. r. o.:
> Hello,
>
>> \setuprandomize[\normaltime]
>>
>> I guess a call after \starttext will do.
>>
>> Peter
>
> I tried it as I was just about to solve the same problem; it seems to
> work in condition that *at least one minute elapses between two runs*.
>
> BTW, what exactly does \normaltime expand to? Does it contain seconds as
> well?
>
> Where to find some more info about \normaltime?
>
probably just an alias for \time
http://www.tug.org/utilities/plain/cseq.html#time-rp
this would also explain, why the seconds do not count :-)
> Best regards,
>
> Lukas
>
>
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* Re: METAFUN's randomized operator's seed
2011-08-03 14:22 ` Peter Rolf
@ 2011-08-03 14:27 ` Procházka Lukáš Ing. - Pontex s. r. o.
0 siblings, 0 replies; 6+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2011-08-03 14:27 UTC (permalink / raw)
To: mailing list for ConTeXt users
> http://www.tug.org/utilities/plain/cseq.html#time-rp
>
>
> this would also explain, why the seconds do not count :-)
>
>> Best regards,
OK, so it could be better e.g.:
----
\starttext
\directlua{context.setuprandomize{os.time()}}
...
----
Best regards,
Lukas
--
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz]
Bezová 1658
147 14 Praha 4
Tel: +420 244 062 238
Fax: +420 244 461 038
___________________________________________________________________________________
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
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___________________________________________________________________________________
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2011-08-03 13:19 METAFUN's randomized operator's seed Marcin Borkowski
2011-08-03 13:48 ` Peter Rolf
2011-08-03 14:07 ` Procházka Lukáš Ing. - Pontex s. r. o.
2011-08-03 14:22 ` Peter Rolf
2011-08-03 14:27 ` Procházka Lukáš Ing. - Pontex s. r. o.
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