Re: [NTG-context] Chapter number retrieval

Hello Sreeram! What a nice and simple solution. After fiddling a bit I got it working also in my environment for the book! — Thank you so much for the support. Kind regrards Willi

On 22 Mar 2022, at 03:29, śrīrāma via ntg-context wrote:

On Tuesday, March 22, 2022 2:17 AM Willi Egger via ntg-context wrote:

...

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?

Hi, On Tuesday, March 22, 2022 2:17 AM Willi Egger via ntg-context wrote:

...

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?

Hi,

You can define a custom command for the chapter, where the first argument (i.e, the number) is 'ignored' –

\define[2]\ChapterTitle{#2} \setuphead[chapter][command=\ChapterTitle]

It will still appeared as numbered in any lists (ToC, etc). Also, it can be accessed using \headnumber[...][...]. An example graphic –

\startuseMPgraphic {graphic:chapter} picture cg; cg := outlinetext.d ("\ssbfd \headnumber[chapter]") (withcolor transparent(1,0.5,blue)); fill boundingcircle cg withcolor transparent(1, 0.5, lightgray); draw cg; \stopuseMPgraphic

Using \headnumber[..][..] any 'conversion' applied to the chapter number (romannumerals, words, etc) are also preserved.

Best, Sreeram

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