\placefigure not centering

\placefigure not centering

[Marcin Borkowski]

Hey!

Seems I'm going to ask lots of questions here - I'm starting to _really_
use ConTeXt;).

Why this does not center the figure horizontally?  What should I do to
center it?

    \placefigure{none}{
      \starttikzpicture[scale=0.3]
        \draw (0,0) -- (5,0) -- (4.5,6) -- (1.5,6) -- cycle;
      \stoptikzpicture
    }

I discovered that using combinations with "1*1" helps, but this is a
dirty trick;).  (Also, "none" as a label does not work with combinations
- is it a bug or a feature?)

Thanks in advance

-- 
Marcin Borkowski (http://mbork.faculty.fmcs.amu.edu.pl)

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Re: \placefigure not centering

[Marcin Borkowski]

Dnia Wed, Aug 27, 2008 at 11:14:26AM +0200, Marcin Borkowski napisał(a):
> Why this does not center the figure horizontally?  What should I do to
> center it?
> 
>     \placefigure{none}{
>       \starttikzpicture[scale=0.3]
>         \draw (0,0) -- (5,0) -- (4.5,6) -- (1.5,6) -- cycle;
>       \stoptikzpicture
>     }
> 
> I discovered that using combinations with "1*1" helps, but this is a
> dirty trick;).  (Also, "none" as a label does not work with combinations
> - is it a bug or a feature?)

OK, so I'm answering myself.  The problem is (I guess so at least) that
the second parameter somehow gets typeset "as a paragraph" - that is,
with full paragraph's width (=width of the whole column).  Since nothing
is said about centering, it is flush left.  This helps:

    \placefigure{none}{\hbox{
      \starttikzpicture[scale=0.5]
        \draw (0,0) -- (5,0) -- (4.5,6) -- (1.5,6) -- cycle;
      \stoptikzpicture
    }}

Maybe it's not very clean, but it seems to work.  If anyone has a
cleaner (more "ConTeXt-way-ish" solution), I'd be thankful for a hint.

Greets

-- 
Marcin Borkowski (http://mbork.faculty.fmcs.amu.edu.pl)
___________________________________________________________________________________
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
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___________________________________________________________________________________

Re: \placefigure not centering

[Hans Hagen]

Marcin Borkowski wrote:
> Dnia Wed, Aug 27, 2008 at 11:14:26AM +0200, Marcin Borkowski napisał(a):
>> Why this does not center the figure horizontally?  What should I do to
>> center it?
>>
>>     \placefigure{none}{
>>       \starttikzpicture[scale=0.3]
>>         \draw (0,0) -- (5,0) -- (4.5,6) -- (1.5,6) -- cycle;
>>       \stoptikzpicture
>>     }
>>
>> I discovered that using combinations with "1*1" helps, but this is a
>> dirty trick;).  (Also, "none" as a label does not work with combinations
>> - is it a bug or a feature?)
> 
> OK, so I'm answering myself.  The problem is (I guess so at least) that
> the second parameter somehow gets typeset "as a paragraph" - that is,
> with full paragraph's width (=width of the whole column).  Since nothing
> is said about centering, it is flush left.  This helps:
> 
>     \placefigure{none}{\hbox{
>       \starttikzpicture[scale=0.5]
>         \draw (0,0) -- (5,0) -- (4.5,6) -- (1.5,6) -- cycle;
>       \stoptikzpicture
>     }}
> 
> Maybe it's not very clean, but it seems to work.  If anyone has a
> cleaner (more "ConTeXt-way-ish" solution), I'd be thankful for a hint.

often

 >     \placefigure{none}{\dontleavehmode
 >       \starttikzpicture[scale=0.5]
 >         \draw (0,0) -- (5,0) -- (4.5,6) -- (1.5,6) -- cycle;
 >       \stoptikzpicture
 >     }

works as well; the second ars to placefigure goes into a vbox

Hans


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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

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___________________________________________________________________________________

Re: \placefigure not centering

[Taco Hoekwater]

Marcin Borkowski wrote:
> Dnia Wed, Aug 27, 2008 at 11:14:26AM +0200, Marcin Borkowski napisał(a):
>> Why this does not center the figure horizontally?  What should I do to
>> center it?
>>
>>     \placefigure{none}{
>>       \starttikzpicture[scale=0.3]
>>         \draw (0,0) -- (5,0) -- (4.5,6) -- (1.5,6) -- cycle;
>>       \stoptikzpicture
>>     }
>>
>> I discovered that using combinations with "1*1" helps, but this is a
>> dirty trick;).  (Also, "none" as a label does not work with combinations
>> - is it a bug or a feature?)
> 
> OK, so I'm answering myself.  The problem is (I guess so at least) that
> the second parameter somehow gets typeset "as a paragraph" - that is,
> with full paragraph's width (=width of the whole column).  Since nothing
> is said about centering, it is flush left.  This helps:
> 
>     \placefigure{none}{\hbox{
>       \starttikzpicture[scale=0.5]
>         \draw (0,0) -- (5,0) -- (4.5,6) -- (1.5,6) -- cycle;
>       \stoptikzpicture
>     }}
> 
> Maybe it's not very clean, but it seems to work.  If anyone has a
> cleaner (more "ConTeXt-way-ish" solution), I'd be thankful for a hint.

You could probably use \framed[frame=off]{} instead of \hbox{}

Best wishes,
Taco
___________________________________________________________________________________
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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archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________