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From: Peter Rolf <indiego@gmx.net>
To: Hans Hagen <pragma@wxs.nl>
Cc: mailing list for ConTeXt users <ntg-context@ntg.nl>,
	Kip Warner <kip@thevertigo.com>
Subject: Re: Rendering differences between PDF viewers
Date: Tue, 24 Apr 2012 15:37:51 +0200	[thread overview]
Message-ID: <4F96ACAF.1030405@gmx.net> (raw)
In-Reply-To: <4F969FB5.7080806@wxs.nl>

Am 24.04.2012 14:42, schrieb Hans Hagen:
> On 20-4-2012 09:50, Peter Rolf wrote:
>> Am 19.04.2012 20:25, schrieb Hans Hagen:
>>> On 18-4-2012 13:12, Peter Rolf wrote:
>>>
>>>> I understand that there is no easy or general solution for this.
>>>> But on the other hand is PNG currently the only way to use transparent
>>>> bitmaps in TeX. The usage of transparent PNG is quite common, so
>>>> this is
>>>> a general problem that should be solved.
>>>>
>>>> I like your idea of automatically adding such groups, if the user
>>>> declares the color space beforehand. Also no answer for the spot color
>>>> problem, but as long as the user does not limit the used color spaces,
>>>> things can stay as they are. Just my 2 cents.
>>>
>>> so first wen need to test with mixed color space documents and such
>>> hacks to see what happens (as we don't want invalid documents)
>>>
>>
>> ok. i don't expect any formal problems, only more or less ugly color
>> shifts. anyhow, we will see.
>>
>> needs some thinking about proper examples (colored text, vector and
>> pixel based graphics in RGB,CMYK,Spot)...
>> i think 'draw ColorCircle(..)' is a perfect candidate for the complete
>> graphic part. one page with transparency and also one page without any
>> transparency (the page group shouldn't kick in). later on we can add
>> some icc profiles to spice things up.
>>
>> i'll start to make a test document on the weekend then. if i have missed
>> something important, let me know. any additional ideas are also
>> welcome :-)
> 
> as a prelude, the next beta will have
> 
> \setupcolors[pagecolormodel=rgb] % gray rgb cmyk auto none
> 
> and issue a warning when no model is set when using transparencies
> 

nice. a test document with mixed color spaces is also in work and should
be ready in a few days.


Peter

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  reply	other threads:[~2012-04-24 13:37 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-15  6:00 Kip Warner
2012-04-15  9:07 ` Mojca Miklavec
2012-04-16 23:43   ` Kip Warner
2012-04-15 16:00 ` Hans Hagen
2012-04-16 23:44   ` Kip Warner
2012-04-17  6:54     ` Hans Hagen
2012-04-17  6:57       ` Kip Warner
2012-04-17  9:53         ` Peter Rolf
2012-04-17 10:12           ` Hans Hagen
2012-04-17 10:48             ` Peter Rolf
2012-04-18  0:49               ` Kip Warner
2012-04-18  6:47                 ` Martin Schröder
2012-04-18  7:19                   ` luigi scarso
2012-04-18 10:58                     ` Martin Schröder
2012-04-19 18:26                       ` Hans Hagen
2012-04-18 22:54                   ` Kip Warner
2012-04-18  7:38                 ` Hans Hagen
2012-04-18 11:12                   ` Peter Rolf
2012-04-19 18:25                     ` Hans Hagen
2012-04-20  7:50                       ` Peter Rolf
2012-04-24 12:42                         ` Hans Hagen
2012-04-24 13:37                           ` Peter Rolf [this message]
2012-04-25 16:08                             ` Peter Rolf
2012-04-24 23:34                           ` Kip Warner
2012-04-28 15:52                           ` Peter Rolf
2012-04-28 18:25                             ` Kip Warner
2012-04-18 22:58                   ` Kip Warner
2012-04-18  0:26           ` Kip Warner
2012-04-17  7:12       ` Alan BRASLAU
2012-04-17  7:31         ` luigi scarso
2012-04-17  7:42           ` Hans Hagen
2012-04-17  8:05             ` luigi scarso
2012-04-18  0:24           ` Kip Warner
2012-04-17 18:57         ` Kip Warner
     [not found] ` <CAPm68ZimT3cbuhwqTgG+OXXiA_RHaA2snOT05rO-J_iWjodCQA@mail.gmail.com>
2012-04-18  0:21   ` Kip Warner

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