Hi Willi,

You could also access the number by using the \getmarking[chapternumber][current].
I think you have used a similar approach in the https://wiki.contextgarden.net/Thumb_index.

Adam

On Tue, Mar 22, 2022 at 11:15 PM Willi Egger via ntg-context <ntg-context@ntg.nl> wrote:
Hello Adam!

Many thanks for your solution. — It works very well in your example and also in an extended version with \startfrontmatter..\stopfrontmatter \startbodymatter…\stopbodymatter. — Unfortunately It does not work to my wish in the actual setup of my book. — I am using now the solution presented by Sreeram.

Again thank you so much!
Kind regards

Willi

> On 22 Mar 2022, at 01:21, Adam Reviczky via ntg-context <ntg-context@ntg.nl> wrote:
>
> Hi,
>
> There is a good overview of accessible variables at: https://tex.stackexchange.com/questions/134474/context-part-chapter-section-and-subsection-names
>
> Maybe you want something like this?
>
> \starttext
> \setuphead[chapter][number=no]
> \startchapter[title={My Chapter}]
> Hello world!
> \startMPcode
> label("\currentstructurelistnumber\ \currentstructuretitle", origin);
> draw fullcircle scaled 3cm;
> \stopMPcode
> \stopchapter
> \stoptext
>
> Adam
>
> On Mon, Mar 21, 2022 at 11:46 PM jbf via ntg-context <ntg-context@ntg.nl> wrote:
> Willi, offlist: Have to admit I didn't actually try your own comment,
> but if it doesn't work, I'll be interested in the eventual answer. I
> recently had to do something similar for the TOC, and Hraban pointed me
> to \currentlistentrynumber. There probably has to be a command along
> those lines (which led me to your 2011 comment, sorry 😁) for non-list
> retrieval. \structurenumber? \currentstructurenumber? Something along
> those lines? There seem to be a number of these but as yet undocumented
> as far as I can see.
>
> Julian
>
> On 22/3/22 10:19, Willi Egger via ntg-context wrote:
> > Hi Julian,
> >
> > :-) I am confronted with my own comments :-)
> >
> > However, this is precisely what I am using in my attempt to get this hidden number. But no it does not appear…
> >
> > Thank you!
> > Willi
> >
> >> On 21 Mar 2022, at 22:33, jbf via ntg-context <ntg-context@ntg.nl> wrote:
> >>
> >> Willi,
> >>
> >> I see a comment by yourself back in 2011 at https://wiki.contextgarden.net/Last_Head_Number
> >>
> >> I wonder if this helps?
> >>
> >> Julian
> >>
> >> On 22/3/22 07:47, Willi Egger via ntg-context wrote:
> >>> Hello everybody!
> >>>
> >>>
> >>> I would like to typeset the chapter title without number in the text. — However I still would need to retrieve the number for a calculation in a MetaFun graphic. I assume, that even though this number is not typeset, it is kept in the background. How to retrieve it?
> >>>
> >>> Kind regards
> >>>
> >>> Willi
> >>> ___________________________________________________________________________________
> >>> 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://context.aanhet.net
> >>> archive  : https://bitbucket.org/phg/context-mirror/commits/
> >>> wiki     : http://contextgarden.net
> >>> ___________________________________________________________________________________
> >> ___________________________________________________________________________________
> >> 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://context.aanhet.net
> >> archive  : https://bitbucket.org/phg/context-mirror/commits/
> >> wiki     : http://contextgarden.net
> >> ___________________________________________________________________________________
> > ___________________________________________________________________________________
> > 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://context.aanhet.net
> > archive  : https://bitbucket.org/phg/context-mirror/commits/
> > wiki     : http://contextgarden.net
> > ___________________________________________________________________________________
> ___________________________________________________________________________________
> 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://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________
> ___________________________________________________________________________________
> 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://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________

___________________________________________________________________________________
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://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________