How to set the caption length?

How to set the caption length?

[seasoul]

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When a figure is placed, but this figure size is much smaller than the
textwidth, the caption length will adjust after the figure size.

\placefigure

[][fig:xxx]

{xxxxxxxxxxxxxxxxxxxxxxxxxxxx}

{\externalfigure[xxx]}



when set the figure size to an arbitrary size, the caption length will also
change. But what I expect is, i change the figure size, but the caption size
is always the textwith, or i can set it arbitrarily, for example 90% of the
text size.



I know it should be very easy, but honestly, i do not know.

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Re: How to set the caption length?

[Alan BRASLAU]

On Saturday 16 October 2010 07:07:01 seasoul wrote:
> When a figure is placed, but this figure size is much smaller than the
> textwidth, the caption length will adjust after the figure size.
> 
> \placefigure
> 
> [][fig:xxx]
> 
> {xxxxxxxxxxxxxxxxxxxxxxxxxxxx}
> 
> {\externalfigure[xxx]}
> 
> 
> 
> when set the figure size to an arbitrary size, the caption length will also
> change. But what I expect is, i change the figure size, but the caption
> size is always the textwith, or i can set it arbitrarily, for example 90%
> of the text size.
> 
> 
> 
> I know it should be very easy, but honestly, i do not know.

For example, try:

\setupcaption [figure] [width=.8\textwidth]

Alan
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