From: Hans Hagen <pragma@wxs.nl>
To: context <ntg-context@ntg.nl>
Subject: Re: MetaPost instance mechanism broken
Date: Thu, 06 Dec 2012 23:12:21 +0100 [thread overview]
Message-ID: <50C11845.9080905@wxs.nl> (raw)
In-Reply-To: <20121206191009.GB26897@homerow>
On 12/6/2012 8:10 PM, Marco Patzer wrote:
> On 2012–11–25 Marco Patzer wrote:
>
>> in one of the last few betas the MetaPost instance
>> mechanism broke.
>
> Did the interface change again? The following does not work on
> today's beta, only “alpha” and “gamma” are printed.
>
> \defineMPinstance
> [myinstance]
> [metafun]
>
> \startuseMPgraphic{alpha}
> draw textext("alpha") ;
> \stopuseMPgraphic
>
> \startuseMPgraphic{myinstance::beta}
> draw textext("beta") ;
> \stopuseMPgraphic
>
> \starttext
> \useMPgraphic{alpha}
> \useMPgraphic{myinstance::beta}
> \startMPcode{myinstance}
> draw textext("gamma") ;
> \stopMPcode
> \stoptext
sure, we have a different interface on odd days
Currently instances are played with a bit (as Alan and I want the
chemical module to run in its own but also want it to be public).
Anyhow, one complication is in the related variables. I now have a
version that supports this:
\defineMPinstance
[myinstance]
[metafun]
\startuseMPgraphic{alpha}
draw textext("alpha") ;
\stopuseMPgraphic
\startuseMPgraphic{myinstance::beta}
draw textext("beta") ;
\stopuseMPgraphic
\startuniqueMPgraphic{myinstance::beta}{width}
draw textext("beta") xsized \MPvar{width} ;
\stopuniqueMPgraphic
\startuseMPgraphic{myinstance::epsilon}{width,height}
draw textext("epsilon") xysized (\MPvar{width},\MPvar{height}) ;
\stopuseMPgraphic
\setMPvariables
[myinstance::beta]
[width=5cm]
\setMPvariables
[epsilon]
[width=5cm,
height=5cm]
\starttext
one : \useMPgraphic{alpha} \blank
two : \useMPgraphic{myinstance::beta} \blank
three : \startMPcode{myinstance} draw textext("gamma") ;
\stopMPcode \blank
four : \reuseMPgraphic{myinstance::beta}{width=2cm} \blank
five : \startMPcode{myinstance} draw textext("delta") ;
\stopMPcode \blank
six : \reuseMPgraphic{myinstance::epsilon}{height=2cm} \blank
seven : \reuseMPgraphic{myinstance::epsilon} \blank
\stoptext
Hans
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prev parent reply other threads:[~2012-12-06 22:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-25 17:11 Marco Patzer
2012-11-25 17:40 ` Wolfgang Schuster
2012-11-25 17:40 ` Aditya Mahajan
2012-11-25 18:05 ` Marco Patzer
2012-11-26 14:32 ` Sietse Brouwer
2012-11-26 16:10 ` Marco Patzer
2012-11-26 16:46 ` Aditya Mahajan
2012-11-26 16:50 ` Hans Hagen
2012-12-06 19:10 ` Marco Patzer
2012-12-06 22:12 ` Hans Hagen [this message]
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