Strange behaviour with colors and figures

Strange behaviour with colors and figures

[Flavien Lambert]

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Dear all, as expressed by the title, I have a very strange behaviour between
colors and figures. Here is the example :
\setupcolors[state=start]
\definecolor[gris][r=0.310,g=0.333,b=0.341]

\starttext
  \placefigure{}{\externalfigure[myfigure]}
  \color[gris]{\tfd Some text}
\stoptext

If myfigure is a PDF file, everything is ok with MKII, MKIV and XeTeX. If
myfigure is a PNG file with transparency, then the "gris" color is ok with
MKII but not with MKIV and XeTeX if the resulting document is read with
Adobe Reader on Linux (when read with evince, colors are ok !!!!!). In the
latter case, the "gris" color is very dark close to black and the green of
myfigure becomes flashy...
Quite puzzling !

-- 
Flavien.
----------------------------
"Quantum objects are completely crazy but, at least, they are all crazy in
the same way." R.P. Feynman.

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Re: Strange behaviour with colors and figures

[luigi scarso]

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On Wed, Oct 22, 2008 at 10:20 PM, Flavien Lambert <petit.lepton@gmail.com>wrote:

> Dear all, as expressed by the title, I have a very strange behaviour
> between colors and figures. Here is the example :
> \setupcolors[state=start]
> \definecolor[gris][r=0.310,g=0.333,b=0.341]
>
> \starttext
>   \placefigure{}{\externalfigure[myfigure]}
>   \color[gris]{\tfd Some text}
> \stoptext
>
> If myfigure is a PDF file, everything is ok with MKII, MKIV and XeTeX. If
> myfigure is a PNG file with transparency, then the "gris" color is ok with
> MKII but not with MKIV and XeTeX if the resulting document is read with
> Adobe Reader on Linux (when read with evince, colors are ok !!!!!). In the
> latter case, the "gris" color is very dark close to black and the green of
> myfigure becomes flashy...
> Quite puzzling !
>

\setupcolors[state=start]
\definecolor[gris][r=0.310,g=0.333,b=0.341]
\starttext
\placefigure{}{\externalfigure[myfigure]}
\color[red]{\tfd Some text}
\stoptext

minimals-beta seems to be ok
tested with myfigure.png in attachment,
acroread, xpdf,evince, psv seem ok
-- 
luigi

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archive  : https://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Strange behaviour with colors and figures

[Taco Hoekwater]

Flavien Lambert wrote:
> Dear all, as expressed by the title, I have a very strange behaviour 
> between colors and figures. Here is the example :
> \setupcolors[state=start]
> \definecolor[gris][r=0.310,g=0.333,b=0.341]
> 
> \starttext
>   \placefigure{}{\externalfigure[myfigure]}
>   \color[gris]{\tfd Some text}
> \stoptext
> 
> If myfigure is a PDF file, everything is ok with MKII, MKIV and XeTeX. 
> If myfigure is a PNG file with transparency, then the "gris" color is ok 
> with MKII but not with MKIV and XeTeX if the resulting document is read 
> with Adobe Reader on Linux (when read with evince, colors are ok !!!!!). 
> In the latter case, the "gris" color is very dark close to black and the 
> green of myfigure becomes flashy...
> Quite puzzling !

The MKIV version of this problem is fixed in 0.30.0, it was broken in
luatex 0.29.0.

Best wishes,
Taco
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