ntg-context - mailing list for ConTeXt users
 help / color / mirror / Atom feed
From: Willi Egger <w.egger@boede.nl>
Subject: Re: Colors changing when applying "transparent"
Date: Tue, 25 Nov 2003 12:46:09 +0100	[thread overview]
Message-ID: <6.0.0.22.1.20031125124237.01c2be00@digitpaint.nl> (raw)
In-Reply-To: <6.0.0.22.2.20031125103235.02c8a220@server-1>

Hi Hans,

Indeed now I tried in Acrobat5 and the problem does not show up.

There is probably another bug to be reported:

I got a file, where with \startcombination ... \stopcombination two small 
pictures are placed next to each other. - When viewing the result in 
Acrobat6 everything looks ok. When printing the page, then the right 
picture will not show up on the print!

Kind regards Willi


At 10:37 25.11.2003, Hans wrote:
>At 09:20 25/11/2003, you wrote:
>>\setupoutput[pdftex]
>>\starttext
>>\setupcolors[state=start]
>>
>>\startuseMPgraphic{tBG}
>>         path p ;
>>         p := unitsquare xscaled \overlaywidth yscaled \overlayheight ;
>>         fill p withcolor \MPcolor{white}; % With normal colors, 
>> everything is fine (blue is really RGB(0,0,1)
>>         % fill p withcolor transparent("normal",.5,\MPcolor{white}); % 
>> This however results in fading of ALL of the colors...
>>\stopuseMPgraphic
>>
>>\defineoverlay[textBG][\useMPgraphic{tBG}]
>>
>>\setupbackgrounds[page][background=color,backgroundcolor=blue]
>>\setupbackgrounds[text][background=textBG]
>>
>>\input tufte
>>\stoptext
>
>Looks like an acrobat bug to me; if you use gsview, it works ok; there are 
>more problems with acrobat and transparencies, like
>
>- no smoothing when a vector graphic is on top of a transparency
>- disappearing characters (esp very big ones)
>- funny flattener preview colors
>
>One of the reasons for such problems is that there is no 'reset graphics 
>state' operator and i guess that occasionally the acrobat graphic state 
>stack gets messed up.
>
>Hans
>
>
>
>-------------------------------------------------------------------------
>                                   Hans Hagen | PRAGMA ADE | pragma@wxs.nl
>                       Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>  tel: +31 (0)38 477 53 69 | fax: +31 (0)38 477 53 74 | www.pragma-ade.com
>-------------------------------------------------------------------------
>                        information: http://www.pragma-ade.com/roadmap.pdf
>                     documentation: http://www.pragma-ade.com/showcase.pdf
>-------------------------------------------------------------------------
>
>_______________________________________________
>ntg-context mailing list
>ntg-context@ntg.nl
>http://www.ntg.nl/mailman/listinfo/ntg-context

  reply	other threads:[~2003-11-25 11:46 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-25  8:20 Willi Egger
2003-11-25  9:37 ` Hans Hagen
2003-11-25 11:46   ` Willi Egger [this message]
2003-11-25 12:10     ` Hans Hagen
2003-11-25 13:00       ` Willi Egger

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=6.0.0.22.1.20031125124237.01c2be00@digitpaint.nl \
    --to=w.egger@boede.nl \
    --cc=ntg-context@ntg.nl \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).