ntg-context - mailing list for ConTeXt users
 help / color / mirror / Atom feed
From: Hans Hagen <pragma@wxs.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: Marco <netuse@lavabit.com>
Subject: Re: How to achieve transparency?
Date: Thu, 13 May 2010 22:57:50 +0200	[thread overview]
Message-ID: <4BEC67CE.8070101@wxs.nl> (raw)
In-Reply-To: <20100513191305.163ab79e@vorbis>

On 13-5-2010 7:13, Marco wrote:
>>> I wonder how transparency works in ConTeXt. I expect in the
>>> following example the text to be transparent. That's not the case.
>>>
>>> \definecolor   [myI]  [r=1, g=.9, b=.7, a=.8]
>>> \definecolor   [myII] [r=0, g=.9, b=0,  a=.8]
>>
>> t=.5, a=1 (a is the method)
> Oh! I assumed »a« stands for »alpha«. Thanks, Hans. Works as expected
> now.

r = red channel
g = green channel
b = blue channel

c = cyan channel
m = magenta channel
y = yellow channel
k = black channel

h = hue or hexadecimal
s = saturation
v = value (or so)

h = hex (i'll add x for hex as well)

a = alternative
t = transparency factor

s = gray value

p = spotcolor percentage
e = spotcolorname

<name 1> = duotone 1
<name 2> = duotone 2

that's about it

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

  reply	other threads:[~2010-05-13 20:57 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-13 14:25 Marco
2010-05-13 15:00 ` Hans Hagen
2010-05-13 17:13   ` Marco
2010-05-13 20:57     ` Hans Hagen [this message]
2010-05-13 21:47       ` Marco
2010-05-14 13:16       ` Henning Hraban Ramm
2010-05-14 13:35         ` Hans Hagen

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=4BEC67CE.8070101@wxs.nl \
    --to=pragma@wxs.nl \
    --cc=netuse@lavabit.com \
    --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).