From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: MetaPost List <metapost@tug.org>
Subject: Re: MetaPost transformation
Date: Wed, 30 May 2012 23:30:32 +0200 [thread overview]
Message-ID: <4FC69178.8020300@wxs.nl> (raw)
In-Reply-To: <CAFP+xFLWzODPCiqF=Lpa3FjDnHLkiv9iEjuxrdPOiu5kV2tLwA@mail.gmail.com>
On 30-5-2012 23:10, Troy Henderson wrote:
> I've encountered a MetaPost issue, and since many MetaPost users also use
> ConTeXt (and vice-versa), I am posting this question on both lists.
>
> The command
>
>> show identity rotated 270 yscaled 0.5;
>
> outputs
>
> (0,0,0,1,-0.5,0)
>
> as expected, while the command
>
>> show identity transformed (0,0,0,1,-0.5,0);
>
> errors with
>
> ---
> ! Missing `)' has been inserted.
> <to be read again>
> ,
> l.26 ^^Ishow identity transformed (0,0,0,1,
> -0.5,0);
> ---
>
> I am using MetaPost 1.504, and the problem seems to be that MetaPost does
> not like me using the sextuple (0,0,0,1,-0.5,0) directly, but this is the
> most convenient method for me to describe my transformations. Is this a
> bug in MetaPost, or am I not allowed to use transformations directly with
> sextuples?
It looks like sextuples are no basic datatype. I think that the show is
just a way to output the internal representation. Of course it would
make sense to have sixtuples (I can even think of a generic n-tuple).
Hans
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next prev parent reply other threads:[~2012-05-30 21:30 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 21:10 Troy Henderson
2012-05-30 21:30 ` Hans Hagen [this message]
2012-05-31 0:56 ` Troy Henderson
[not found] ` <CAFP+xFJmoZ0PBWK=91SY7jPmEa_4gWGSBHfnt6S659jEiQCbAg@mail.g mail.com>
2012-05-31 2:37 ` [NTG-context] " Dan Luecking
2012-05-31 3:44 ` [metapost] " Troy Henderson
2012-05-31 7:00 ` Albrecht Kauffmann
2012-05-31 12:31 ` Troy Henderson
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