Automatic counting groupsuffix for subfigures

Automatic counting groupsuffix for subfigures

[Marco Patzer via ntg-context]

Hi!

I'd like to use subfigure numbering for floats. This works:

\useMPlibrary [dum]
\starttext

\startplacefigure [location=none]
  \startfloatcombination [nx=2]
    \startplacefigure [title=Left, reference=ref:left, group=one, groupsuffix=a]
      \externalfigure
    \stopplacefigure
    \startplacefigure [title=Right, reference=ref:right, group=one, groupsuffix=b]
      \externalfigure
    \stopplacefigure
  \stopfloatcombination
\stopplacefigure

See \in{image}[ref:right] (right) and \in{image}[ref:left] (left).
\stoptext

The output is correct, but the usage is verbose. I'd like to replace
the manual groupsuffix numbering with something automatic. ConTeXt
uses automatic numbering in many places so it seems strange to
number the subfigures manually.

I have tried using counters and labels, but something is always
messed up and I couldn't get it to work.

How to achieve automatic subfigure numbering without specifying the
groupsuffix manually?

Marco

LMTX 2021.11.22 22:27
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Re: Automatic counting groupsuffix for subfigures

[Hans Hagen via ntg-context]

On 11/24/2021 10:19 AM, Marco Patzer via ntg-context wrote:
> Hi!
> 
> I'd like to use subfigure numbering for floats. This works:
> 
> \useMPlibrary [dum]
> \starttext
> 
> \startplacefigure [location=none]
>    \startfloatcombination [nx=2]
>      \startplacefigure [title=Left, reference=ref:left, group=one, groupsuffix=a]
>        \externalfigure
>      \stopplacefigure
>      \startplacefigure [title=Right, reference=ref:right, group=one, groupsuffix=b]
>        \externalfigure
>      \stopplacefigure
>    \stopfloatcombination
> \stopplacefigure
> 
> See \in{image}[ref:right] (right) and \in{image}[ref:left] (left).
> \stoptext
> 
> The output is correct, but the usage is verbose. I'd like to replace
> the manual groupsuffix numbering with something automatic. ConTeXt
> uses automatic numbering in many places so it seems strange to
> number the subfigures manually.
> 
> I have tried using counters and labels, but something is always
> messed up and I couldn't get it to work.
> 
> How to achieve automatic subfigure numbering without specifying the
> groupsuffix manually?
sort of tricky due to multipass and other synchronizations although in 
the end some 20 lines of code can do it ... i'll send you and wolfgang a 
test file with a more native feature

Hans

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