Two questions about color in MetaFun

Two questions about color in MetaFun

[Jairo A. del Rio]

[-- Attachment #1.1: Type: text/plain, Size: 1407 bytes --]

Hi, list! I have two questions concerning MetaFun:

1st:

What is the correct way to pass a ConTeXt named color (e.g. xwi's "maroon")
to MetaFun. Using (with \usecolors[xwi] loaded in the preamble):

withcolor maroon

does not work. I could copy-paste definitions from ConTeXt sources and do
e.g.

\definecolor [maroon][r=.690196,g=.188235,b=.376471]

but it is unfeasible for complete color schemes. So, is there a better way
to do it?

2nd:

I was trying to do some stuff for my girlfriend using ConTeXt and I tried
to randomize colors in MetaFun using normaldeviate. However, something
interesting happens. The following:

\setuplayout[width=middle]
\setuppagenumbering[state=stop]
\setuppapersize[A10,landscape][A10,landscape]
\starttext
\startuseMPgraphic{cornystuff}
draw outlinetext.f ("\framedtext[frame=off,width=fit,align=middle]{I love
you \\ \CONTEXT}") %\CONTEXT is not my girlfriend, it's just for the example
(withcolor (normaldeviate,normaldeviate,normaldeviate) withpen pencircle
scaled 1/5)
scaled 1 ;
\stopuseMPgraphic
\dorecurse{20}{%
\startplacefigure[location=force,number=no]
\useMPgraphic{cornystuff}
\stopplacefigure
\page[yes]
}
\stoptext

changes the color of every letter. I don't complain (in fact it does look
better), but I still have a question: what should I do if I wanted to
select a random color first and then use it for the entire content? Thanks
in advance.

Jairo :)

[-- Attachment #1.2: Type: text/html, Size: 1795 bytes --]

[-- Attachment #2: Type: text/plain, Size: 493 bytes --]

___________________________________________________________________________________
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
___________________________________________________________________________________

Re: Two questions about color in MetaFun

[Aditya Mahajan]

On Thu, 13 Aug 2020, Jairo A. del Rio wrote:

> Hi, list! I have two questions concerning MetaFun:
> 
> 1st:
> 
> What is the correct way to pass a ConTeXt named color (e.g. xwi's "maroon")
> to MetaFun. Using (with \usecolors[xwi] loaded in the preamble):
> 
> withcolor maroon
> 
> does not work. 

You need:

    withcolor \MPcolor{maroon}

or (note the quotes)
    
    withcolor "maroon"  

> 2nd:
> 
> I was trying to do some stuff for my girlfriend using ConTeXt and I tried
> to randomize colors in MetaFun using normaldeviate. However, something
> interesting happens. The following:
>
> [snip]
> 
> changes the color of every letter. I don't complain (in fact it does look
> better), but I still have a question: what should I do if I wanted to
> select a random color first and then use it for the entire content? Thanks
> in advance.


newcolor randomcolor; 
randomcolor := (normaldeviate, normaldeviate, normaldeviate);

.... withcolor randomcolor;

Aditya
___________________________________________________________________________________
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
___________________________________________________________________________________

Re: Two questions about color in MetaFun

[Jairo A. del Rio]

[-- Attachment #1.1: Type: text/plain, Size: 1776 bytes --]

Using \MPcolor does it for me. Thank you very much, Aditya :)

Jairo :)

El jue., 13 de ago. de 2020 a la(s) 18:47, Aditya Mahajan (adityam@umich.edu)
escribió:

> On Thu, 13 Aug 2020, Jairo A. del Rio wrote:
>
> > Hi, list! I have two questions concerning MetaFun:
> >
> > 1st:
> >
> > What is the correct way to pass a ConTeXt named color (e.g. xwi's
> "maroon")
> > to MetaFun. Using (with \usecolors[xwi] loaded in the preamble):
> >
> > withcolor maroon
> >
> > does not work.
>
> You need:
>
>     withcolor \MPcolor{maroon}
>
> or (note the quotes)
>
>     withcolor "maroon"
>
> > 2nd:
> >
> > I was trying to do some stuff for my girlfriend using ConTeXt and I tried
> > to randomize colors in MetaFun using normaldeviate. However, something
> > interesting happens. The following:
> >
> > [snip]
> >
> > changes the color of every letter. I don't complain (in fact it does look
> > better), but I still have a question: what should I do if I wanted to
> > select a random color first and then use it for the entire content?
> Thanks
> > in advance.
>
>
> newcolor randomcolor;
> randomcolor := (normaldeviate, normaldeviate, normaldeviate);
>
> .... withcolor randomcolor;
>
> Aditya
>
> ___________________________________________________________________________________
> 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
>
> ___________________________________________________________________________________
>

[-- Attachment #1.2: Type: text/html, Size: 2727 bytes --]

[-- Attachment #2: Type: text/plain, Size: 493 bytes --]

___________________________________________________________________________________
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
___________________________________________________________________________________