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* number of chapters
@ 2022-07-20  7:06 Henning Hraban Ramm via ntg-context
  2022-07-20  7:40 ` Henning Hraban Ramm via ntg-context
  0 siblings, 1 reply; 4+ messages in thread
From: Henning Hraban Ramm via ntg-context @ 2022-07-20  7:06 UTC (permalink / raw)
  To: mailing list for ConTeXt users; +Cc: Henning Hraban Ramm

Hi,

how do I access the current chapter number and the number of chapters 
(including appendixes; after the first run)?

I’d like to setup a chapter color like

\definecolor[ChapterColor][
   s=1,v=1,
   h=360*\namedstructurevariable{chapter}{number}/\numberofchapters,
]

and use it for a thumb index...

(I can’t access the wiki ATM; downforeveryoneorjustme.com says it would 
be just me.)

Hraban
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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: number of chapters
  2022-07-20  7:06 number of chapters Henning Hraban Ramm via ntg-context
@ 2022-07-20  7:40 ` Henning Hraban Ramm via ntg-context
  2022-07-20  7:47   ` Taco Hoekwater via ntg-context
  0 siblings, 1 reply; 4+ messages in thread
From: Henning Hraban Ramm via ntg-context @ 2022-07-20  7:40 UTC (permalink / raw)
  To: ntg-context; +Cc: Henning Hraban Ramm

Am 20.07.22 um 09:06 schrieb Henning Hraban Ramm via ntg-context:
> Hi,
> 
> how do I access the current chapter number and the number of chapters 
> (including appendixes; after the first run)?
> 
> I’d like to setup a chapter color like
> 
> \definecolor[ChapterColor][
>    s=1,v=1,
>    h=360*\namedstructurevariable{chapter}{number}/\numberofchapters,
> ]
> 
> and use it for a thumb index...
> 
> (I can’t access the wiki ATM; downforeveryoneorjustme.com says it would 
> be just me.)

Ok, I can access the wiki via Tor and found

\somenamedheadnumber{chapter}{current}
\somenamedheadnumber{chapter}{last}

or

\someheadnumber[chapter][current]
\someheadnumber[chapter][last]

What’s the difference?

And even if I use \definecolor within a setup, I get the same color for 
every chapter – how and where must I delay expansion?

\usemodule[visual]

\startsetups[MyChapterSetup]
\definecolor[MyChapterColor][h={360*\somenamedheadnumber{chapter}{current}/\somenamedheadnumber{chapter}{last}},s=1,v=1]
\definecolor[fakerulecolor][MyChapterColor]
\setuphead[chapter][color=MyChapterColor]
\stopsetups

\unexpanded\def\MyChapter#1{
   \setup{MyChapterSetup}
   \color[MyChapterColor]{#1}
}

\setuphead[chapter][page=no,textcommand=\MyChapter]

\starttext

\dorecurse{20}{
\chapter{\fakewords{1}{5}}
\fakewords{10}{50}
}

\stoptext


Hraban


___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
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___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: number of chapters
  2022-07-20  7:40 ` Henning Hraban Ramm via ntg-context
@ 2022-07-20  7:47   ` Taco Hoekwater via ntg-context
  2022-07-20  8:02     ` Henning Hraban Ramm via ntg-context
  0 siblings, 1 reply; 4+ messages in thread
From: Taco Hoekwater via ntg-context @ 2022-07-20  7:47 UTC (permalink / raw)
  To: mailing list for ConTeXt users; +Cc: Taco Hoekwater



> On 20 Jul 2022, at 09:40, Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl> wrote:
> 
> Am 20.07.22 um 09:06 schrieb Henning Hraban Ramm via ntg-context:
>> Hi,
>> how do I access the current chapter number and the number of chapters (including appendixes; after the first run)?
>> I’d like to setup a chapter color like
>> \definecolor[ChapterColor][
>>   s=1,v=1,
>>   h=360*\namedstructurevariable{chapter}{number}/\numberofchapters,
>> ]
>> and use it for a thumb index...
>> (I can’t access the wiki ATM; downforeveryoneorjustme.com says it would be just me.)
> 
> Ok, I can access the wiki via Tor and found
> 
> \somenamedheadnumber{chapter}{current}
> \somenamedheadnumber{chapter}{last}

These are expandable

> 
> or
> 
> \someheadnumber[chapter][current]
> \someheadnumber[chapter][last]

These are not
> 
> What’s the difference?
> 
> And even if I use \definecolor within a setup, I get the same color for every chapter – how and where must I delay expansion?
> 
> \usemodule[visual]
> 
> \startsetups[MyChapterSetup]
> \definecolor[MyChapterColor][h={360*\somenamedheadnumber{chapter}{current}/\somenamedheadnumber{chapter}{last}},s=1,v=1]

\definecolor[MyChapterColor][h={\the\numexpr 360*\somenamedheadnumber{chapter}{current}/\somenamedheadnumber{chapter}{last}\relax},s=1,v=1]

Best wishes,
Taco

— 
Taco Hoekwater              E: taco@bittext.nl
genderfluid (all pronouns)



___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : https://contextgarden.net
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: number of chapters
  2022-07-20  7:47   ` Taco Hoekwater via ntg-context
@ 2022-07-20  8:02     ` Henning Hraban Ramm via ntg-context
  0 siblings, 0 replies; 4+ messages in thread
From: Henning Hraban Ramm via ntg-context @ 2022-07-20  8:02 UTC (permalink / raw)
  To: mailing list for ConTeXt users; +Cc: Henning Hraban Ramm

Am 20.07.22 um 09:47 schrieb Taco Hoekwater:
>> Ok, I can access the wiki via Tor and found
>>
>> \somenamedheadnumber{chapter}{current}
>> \somenamedheadnumber{chapter}{last}
> 
> These are expandable
> 
>> \someheadnumber[chapter][current]
>> \someheadnumber[chapter][last]
> 
> These are not
>>
> 
> \definecolor[MyChapterColor][h={\the\numexpr 360*\somenamedheadnumber{chapter}{current}/\somenamedheadnumber{chapter}{last}\relax},s=1,v=1]

Thank you!

It’s now in https://wiki.contextgarden.net/Command/somenamedheadnumber

Hraban

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : https://www.pragma-ade.nl / http://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : https://contextgarden.net
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 4+ messages in thread

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2022-07-20  7:06 number of chapters Henning Hraban Ramm via ntg-context
2022-07-20  7:40 ` Henning Hraban Ramm via ntg-context
2022-07-20  7:47   ` Taco Hoekwater via ntg-context
2022-07-20  8:02     ` Henning Hraban Ramm via ntg-context

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