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From: Otared Kavian <otared@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: How to define an array of pens
Date: Mon, 22 Jun 2020 11:23:03 +0200	[thread overview]
Message-ID: <24838CF4-414B-425D-B634-031199002BED@gmail.com> (raw)
In-Reply-To: <70C0AA64-1042-4038-B81B-1E6297993849@elvenkind.com>

Thanks Taco!
I added this and Hans' explanations to the wiki:

	https://wiki.contextgarden.net/variable_color

but could not set a better title for that page such as « Variable arrays of colors, pens, paths ». 

Best regards: Otared

> On 22 Jun 2020, at 09:28, Taco Hoekwater <taco@elvenkind.com> wrote:
> 
> 
> 
>> On 22 Jun 2020, at 09:17, Otared Kavian <otared@gmail.com> wrote:
>> 
>> Hi Hans,
>> 
>> After learning from you how to define an array of colors and paths, I would like to know how is it possible to define a variable pen size.
>> In the following working example below, I would like to replace 
>> 
>> 	MyPens[j] := pencircle scaled 2pt ;
>> 
>> by something like
>> 
>> 	MyPens[j] := pencircle scaled (2+j) pt ;
> 
> MyPens[j] := pencircle scaled ((2+j)*pt);
> 
> “pt” is just a multiplier variable in MetaPost. there is an
> implied multiplication operation, but that only works in
> bare-number cases. That is why you need 
> 
> (2+j)*pt
> 
> The outer parentheses are to prevent MetaPost from interpreting
> your line as 
> 
>  (pencircle scaled (2+j)) * pt;
> 
> Best wishes,
> Taco
> 
> 
> ___________________________________________________________________________________
> 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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> ___________________________________________________________________________________

___________________________________________________________________________________
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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___________________________________________________________________________________

  reply	other threads:[~2020-06-22  9:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-22  7:17 Otared Kavian
2020-06-22  7:28 ` Taco Hoekwater
2020-06-22  9:23   ` Otared Kavian [this message]
2020-06-22 14:32 ` Alan Braslau

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