ConTeXt MKIV Bug: transparent does not work as should in mplib's textext

ConTeXt MKIV Bug: transparent does not work as should in mplib's textext

[Yue Wang]

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Hi Hans:

It seems that \definecolor[ foobar][some transparent color] does not
work in MKIV. I attach the test file and result pdf in the attachment.
Can you take a look? thanks!

Yue Wang

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Re: ConTeXt MKIV Bug: transparent does not work as should in mplib's textext

[Wolfgang Schuster]

Am 09.11.2008 um 13:27 schrieb Yue Wang:

> Hi Hans:
>
> It seems that \definecolor[ foobar][some transparent color] does not
> work in MKIV. I attach the test file and result pdf in the attachment.
> Can you take a look? thanks!

It works but in normal text but if you use MetaPost graphics
only the first text is transparent.

\setupcolors[state=start]

\definecolor[tred][a=1,t=.5,r=1]

\starttext

\startluacode
tex.sprint("\\startMPcode")
for i=1,5 do
     tex.sprint('label(textext("\\definedfont[Sans sa ' ..  
math.random(1,4) .. ']%')
     tex.sprint('\\color[tred]{1}"),(10*' .. i .. ',0)) ;')
end
tex.sprint("\\stopMPcode")
\stopluacode

\stoptext

Wolfgang

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Re: ConTeXt MKIV Bug: transparent does not work as should in mplib's textext

[Yue Wang]

Hi,

> It works but in normal text but if you use MetaPost graphics
> only the first text is transparent.

Yes, so it is a bug.

Yue Wang
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Re: ConTeXt MKIV Bug: transparent does not work as should in mplib's textext

[Hans Hagen]

Yue Wang wrote:
> Hi Hans:
> 
> It seems that \definecolor[ foobar][some transparent color] does not
> work in MKIV. I attach the test file and result pdf in the attachment.
> Can you take a look? thanks!

it's some tricky interference between graphic states in the pdf code so 
i now opt for a more robust but redundant approach (more color code in 
the pdf stream but who cares)

Hans

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