How does \setupfloat work?

How does \setupfloat work?

[Mark Szepieniec]

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I'm trying to set a default width for figures with \setupfloat. However,
the command doesn't seem to be picking up the width specification, even
though the manual indicates it accepts a width= argument:

\setupfloat[figure][width=2cm]

\starttext

\placefigure{}{\externalfigure[picture.png]}


\stoptext


picture.png just gets inserted at its native size, rather than scaled to
have the specified width. What am I doing wrong? (setting minwidth and/or
maxwidth doesn't seem to work either)

Thanks in advance for any assistance.

Mark

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Re: How does \setupfloat work?

[Hans Hagen]

On 11/29/2014 10:49 AM, Mark Szepieniec wrote:
> I'm trying to set a default width for figures with \setupfloat. However,
> the command doesn't seem to be picking up the width specification, even
> though the manual indicates it accepts a width= argument:
>
> \setupfloat[figure][width=2cm]
>
> \starttext
>
> \placefigure{}{\externalfigure[picture.png]}
>
>
> \stoptext

just

\placefigure{}{\externalfigure[picture.png][width=2cm]}


>
> picture.png just gets inserted at its native size, rather than scaled to
> have the specified width. What am I doing wrong? (setting minwidth
> and/or maxwidth doesn't seem to work either)
>
> Thanks in advance for any assistance.
>
> Mark
>
>
> ___________________________________________________________________________________
> 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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>


-- 

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Re: How does \setupfloat work?

[Mark Szepieniec]

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On Sat, Nov 29, 2014 at 11:03 AM, Hans Hagen <pragma@wxs.nl> wrote:

> On 11/29/2014 10:49 AM, Mark Szepieniec wrote:
>
>> I'm trying to set a default width for figures with \setupfloat. However,
>> the command doesn't seem to be picking up the width specification, even
>> though the manual indicates it accepts a width= argument:
>>
>> \setupfloat[figure][width=2cm]
>>
>> \starttext
>>
>> \placefigure{}{\externalfigure[picture.png]}
>>
>>
>> \stoptext
>>
>
> just
>
> \placefigure{}{\externalfigure[picture.png][width=2cm]}
>
>
>
>> picture.png just gets inserted at its native size, rather than scaled to
>> have the specified width. What am I doing wrong? (setting minwidth
>> and/or maxwidth doesn't seem to work either)
>>
>> Thanks in advance for any assistance.
>>
>> Mark
>>
>>
>> ____________________________________________________________
>> _______________________
>> 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
>> ____________________________________________________________
>> _______________________
>>
>>
>
> --
>
> -----------------------------------------------------------------
>                                           Hans Hagen | PRAGMA ADE
>               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
>                                              | www.pragma-pod.nl
> -----------------------------------------------------------------
> ____________________________________________________________
> _______________________
> 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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> wiki     : http://contextgarden.net
> ____________________________________________________________
> _______________________


Sorry, I should have mentioned I was able to work around it by doing
exactly that, but I'd rather not have to edit all the \placefigure
instances if I decide to change the width.

Also I'd like to use a different default width for graphics, so
\setupexternalfigures[width=XXXcm] wouldn't work well either.

I realize I could define my own macros or something to solve this, but I'm
just puzzled that setting width in \setupfloat[figure] doesn't work. Am I
reading the manual wrong, or is is just not implemented yet or something?
(honest question)

Thanks for your response,

Mark

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___________________________________________________________________________________

Re: How does \setupfloat work?

[Robert Blackstone]

On 29 Nov 2014, at 11:49 ,  Mark Szepieniec <mszepien@gmail.com> wrote
> Sorry, I should have mentioned I was able to work around it by doing
> exactly that, but I'd rather not have to edit all the \placefigure
> instances if I decide to change the width.
> 
> Also I'd like to use a different default width for graphics, so
> \setupexternalfigures[width=XXXcm] wouldn't work well either.
> 
> I realize I could define my own macros or something to solve this, but I'm
> just puzzled that setting width in \setupfloat[figure] doesn't work. Am I
> reading the manual wrong, or is is just not implemented yet or something?
> (honest question)
 
Hi Mark,
What I would probably do (again) is:

1 leave out the float dimension from the setup and use something like
\definefloat[figure][figures]
\setupfloat[figure][location=,spacebefore=,spaceafter=,sidespacebefore=,sidespaceafter=] or whatever you want in this respect

2 collect in a separate .tex-file, to be input in your document .tex-file, all figure-data in the form 
\useexternalfigure[Fig1][YourFigure1.png][width=.x\textwidth]%  etc

If you want a different uniform figure width you can then easily replace ijn this file all width=.x\textwidth by width=.y\textwidth.

3 In your document .tex-file use 
\placefigure[here][Fig1]{Title}
{\externalfigure[Fig1]}  

This will probably give you optimal flexibility.

I hope it helps.

Best regards,
Robert Blackstone






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___________________________________________________________________________________

Re: How does \setupfloat work?

[Christoph Reller]

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>
> On Sat, Nov 29, 2014 at 11:03 AM, Hans Hagen <pragma@wxs.nl> wrote:
>
> > On 11/29/2014 10:49 AM, Mark Szepieniec wrote:
> >
> >> I'm trying to set a default width for figures with \setupfloat. However,
> >> the command doesn't seem to be picking up the width specification, even
> >> though the manual indicates it accepts a width= argument:
> >>
> >> \setupfloat[figure][width=2cm]
> >>
> >> \starttext
> >>
> >> \placefigure{}{\externalfigure[picture.png]}
> >>
> >>
> >> \stoptext
> >>
> >
> > just
> >
> > \placefigure{}{\externalfigure[picture.png][width=2cm]}
> >
> >
> >
> >> picture.png just gets inserted at its native size, rather than scaled to
> >> have the specified width. What am I doing wrong? (setting minwidth
> >> and/or maxwidth doesn't seem to work either)
> >>
> >> Thanks in advance for any assistance.
> >>
> >> Mark
>
> Sorry, I should have mentioned I was able to work around it by doing
> exactly that, but I'd rather not have to edit all the \placefigure
> instances if I decide to change the width.
>
> Also I'd like to use a different default width for graphics, so
> \setupexternalfigures[width=XXXcm] wouldn't work well either.
>
> I realize I could define my own macros or something to solve this, but I'm
> just puzzled that setting width in \setupfloat[figure] doesn't work. Am I
> reading the manual wrong, or is is just not implemented yet or something?
> (honest question)
>
> Thanks for your response,
>
> Mark
>

Hi Mark,
You can use \defineexternalfigure as in the following example.

\defineexternalfigure[whatever][width=2cm]
\starttext
\placefigure{}{\externalfigure[picture.png][whatever]}
\stoptext

See also http://wiki.contextgarden.net/Floating_Objects

Christoph

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Re: How does \setupfloat work?

[Mark Szepieniec]

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On Sat, Nov 29, 2014 at 8:22 PM, Christoph Reller <
christoph.reller@gmail.com> wrote:

> On Sat, Nov 29, 2014 at 11:03 AM, Hans Hagen <pragma@wxs.nl> wrote:
>>
>> > On 11/29/2014 10:49 AM, Mark Szepieniec wrote:
>> >
>> >> I'm trying to set a default width for figures with \setupfloat.
>> However,
>> >> the command doesn't seem to be picking up the width specification, even
>> >> though the manual indicates it accepts a width= argument:
>> >>
>> >> \setupfloat[figure][width=2cm]
>> >>
>> >> \starttext
>> >>
>> >> \placefigure{}{\externalfigure[picture.png]}
>> >>
>> >>
>> >> \stoptext
>> >>
>> >
>> > just
>> >
>> > \placefigure{}{\externalfigure[picture.png][width=2cm]}
>> >
>> >
>> >
>> >> picture.png just gets inserted at its native size, rather than scaled
>> to
>> >> have the specified width. What am I doing wrong? (setting minwidth
>> >> and/or maxwidth doesn't seem to work either)
>> >>
>> >> Thanks in advance for any assistance.
>> >>
>> >> Mark
>>
>> Sorry, I should have mentioned I was able to work around it by doing
>> exactly that, but I'd rather not have to edit all the \placefigure
>> instances if I decide to change the width.
>>
>> Also I'd like to use a different default width for graphics, so
>> \setupexternalfigures[width=XXXcm] wouldn't work well either.
>>
>> I realize I could define my own macros or something to solve this, but I'm
>> just puzzled that setting width in \setupfloat[figure] doesn't work. Am I
>> reading the manual wrong, or is is just not implemented yet or something?
>> (honest question)
>>
>> Thanks for your response,
>>
>> Mark
>>
>
> Hi Mark,
> You can use \defineexternalfigure as in the following example.
>
> \defineexternalfigure[whatever][width=2cm]
> \starttext
> \placefigure{}{\externalfigure[picture.png][whatever]}
> \stoptext
>
> See also http://wiki.contextgarden.net/Floating_Objects
>
> Christoph
>
>
Thanks all for your responses.

\defineexternalfigure looks like it does something very close to what I
wanted. Googling it brought me to a mailing list thread where a question
similar to mine was asked, so for future reference:
http://www.ntg.nl/pipermail/ntg-context/2012/069446.html.

So I guess my problem is resolved, but I'd still like to understand better
why my earlier solution of doing

\setupfloat[figure][width=2cm]

didn't set a default for later instances of \placefigure. I feel like I
might be missing some aspect of the ConTeXt philosophy, or I'm misreading
the manual, or it's just a bug...?

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Re: How does \setupfloat work?

[Aditya Mahajan]

On Sat, 29 Nov 2014, Mark Szepieniec wrote:

> So I guess my problem is resolved, but I'd still like to understand better
> why my earlier solution of doing
>
> \setupfloat[figure][width=2cm]
>
> didn't set a default for later instances of \placefigure. I feel like I
> might be missing some aspect of the ConTeXt philosophy, or I'm misreading
> the manual, or it's just a bug...?

\setupfloat[figure] sets the values of \startplacefigure (and 
\placefigure), and not for \externalfigure. The width value for 
startplacefigure is not used anywhere.

The default value of \setupfloats[width=...] is used when the float box is 
empty. So, the only scenario where the value of \setupfloats[width=...] 
will matter is the following:

\starttext
\setupfloats[width=2cm]
\placefloat{}{}

\setupfloats[width=10cm]
\placefloat{}{}
\stoptext

Aditya
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___________________________________________________________________________________

Re: How does \setupfloat work?

[Mark Szepieniec]

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On Sun, Nov 30, 2014 at 12:48 AM, Aditya Mahajan <adityam@umich.edu> wrote:

> On Sat, 29 Nov 2014, Mark Szepieniec wrote:
>
>  So I guess my problem is resolved, but I'd still like to understand better
>> why my earlier solution of doing
>>
>> \setupfloat[figure][width=2cm]
>>
>> didn't set a default for later instances of \placefigure. I feel like I
>> might be missing some aspect of the ConTeXt philosophy, or I'm misreading
>> the manual, or it's just a bug...?
>>
>
> \setupfloat[figure] sets the values of \startplacefigure (and
> \placefigure), and not for \externalfigure. The width value for
> startplacefigure is not used anywhere.
>
> The default value of \setupfloats[width=...] is used when the float box is
> empty. So, the only scenario where the value of \setupfloats[width=...]
> will matter is the following:
>
> \starttext
> \setupfloats[width=2cm]
> \placefloat{}{}
>
> \setupfloats[width=10cm]
> \placefloat{}{}
> \stoptext
>
> Aditya
>
>
Thanks Aditya, that's very helpful and things make more sense now. Is this
stuff documented somewhere or did you consult the source code?

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