From: luigi scarso <luigi.scarso@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: How to get randomly coloured text in metapost?
Date: Tue, 11 May 2010 21:40:17 +0200 [thread overview]
Message-ID: <AANLkTil8FDJB3bDfiy5dUJDqiGrYB4-3NhD5GCCYKvsx@mail.gmail.com> (raw)
In-Reply-To: <AANLkTil2T9Y27QAuQahCLtDJETmtyMRdcH-rMlY2dy4c@mail.gmail.com>
On Tue, May 11, 2010 at 9:27 PM, Mojca Miklavec
<mojca.miklavec.lists@gmail.com> wrote:
> On Tue, May 11, 2010 at 21:03, Marco wrote:
>>> numeric r, g, b ;
>>>
>>> r := uniformdeviate 1 ;
>>> g := uniformdeviate 1 ;
>>> b := uniformdeviate 1 ;
>>>
>>> textext("\colored[r=" & r & ",g=" & g & ",b=" & b & "]{Test}")
>> Thanks for this snipped, Hans. It looks promising, but I get the
>> following compile error:
>>
>> !mplib : mp terminal: >> "\colored [r="
>> >> 0.74464
>> ! Not implemented: (string)&(known numeric).
>> <to be read again>
>
> You need to convert number to string first. Use "decimal(r)" instead
> of "r". (But I didn't test.)
>
> Mojca
> ___________________________________________________________________________________
> 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
> webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive : http://foundry.supelec.fr/projects/contextrev/
> wiki : http://contextgarden.net
> ___________________________________________________________________________________
>
\starttext
\startuseMPgraphic {1}
numeric r, g, b ;
r := uniformdeviate 1 ;
g := uniformdeviate 1 ;
b := uniformdeviate 1 ;
label(textext("\colored[r=" & decimal(r) & ",g=" & decimal(g) & ",b="
& decimal(b) & "]{Test}"),origin);
label(textext("r=" & decimal(r) & ",g=" & decimal(g) & ",b=" &
decimal(b) ),origin+(0,-100));
\stopuseMPgraphic
\useMPgraphic {1}
\stoptext
( tested :-) )
Warning: default is preserve seed (every runs will have the same random number)
if you don't purge temporary files *tuo, *tui etc.
I'm sure that there is a switch/macros to avoid this, but I don't
remember it now
--
luigi
___________________________________________________________________________________
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
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
prev parent reply other threads:[~2010-05-11 19:40 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-11 15:48 Marco
2010-05-11 16:14 ` Alan BRASLAU
2010-05-11 17:38 ` Marco
2010-05-11 18:06 ` Hans Hagen
2010-05-11 19:03 ` Marco
2010-05-11 19:27 ` Mojca Miklavec
2010-05-11 19:34 ` Marco
2010-05-11 19:40 ` luigi scarso [this message]
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