t-tikz: problem with colorspace pgfprgb

t-tikz: problem with colorspace pgfprgb

[Finn Martensen]

Hi,

I have the following problem with TikZ: When I use the "patterns"
library in a tikzpicture environment, the file is compiled without
problems and creates a PDF file. However, Acrobat displays an error
message "Could not find the ColorSpace named 'pgfprgb'". So the
patterns library seems to be a sufficient condition for this problem
to occur. By contrast, the problem does not occur when I use pdflatex
to create PDF from a LaTeX file with the same tikz-code.

I have a standalone ConTeXt distribution and tikz 2.00, but I already
had this problem with tikz 1.18.

Any suggestions?

Thanks,

Finn Martensen
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Re: t-tikz: problem with colorspace pgfprgb

[Aditya Mahajan]

Hi Finn,

On Sun, 2 Mar 2008, Finn Martensen wrote:

> Hi,
>
> I have the following problem with TikZ: When I use the "patterns"
> library in a tikzpicture environment, the file is compiled without
> problems and creates a PDF file. However, Acrobat displays an error
> message "Could not find the ColorSpace named 'pgfprgb'". So the
> patterns library seems to be a sufficient condition for this problem
> to occur. By contrast, the problem does not occur when I use pdflatex
> to create PDF from a LaTeX file with the same tikz-code.
>
> I have a standalone ConTeXt distribution and tikz 2.00, but I already
> had this problem with tikz 1.18.
>
> Any suggestions?

Can you please post a minimal example? I have compiled a few examples 
from the tikz manual by using all tikz librarries, but never had this 
problem.

Aditya
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Re: t-tikz: problem with colorspace pgfprgb

[Finn Martensen]

2008/3/2, Aditya Mahajan <adityam@umich.edu>:

>  > I have the following problem with TikZ: When I use the "patterns"
>  > library in a tikzpicture environment, the file is compiled without
>  > problems and creates a PDF file. However, Acrobat displays an error
>  > message "Could not find the ColorSpace named 'pgfprgb'". [...]
>
> Can you please post a minimal example? I have compiled a few examples
>  from the tikz manual by using all tikz librarries, but never had this
>  problem.

It just discovered that it depends, e.g., on whether there is only one
page with a tikzpicture or more pages with tikzpictures. To give code
examples: the first works, but not the second

**************************************
Code with no problems:
**************************************
\usemodule[tikz]
\usetikzlibrary[patterns]
\starttext
\starttikzpicture
\fill[pattern=dots] (0,0) -- (0,1) -- (1,1) -- (1,0);
\stoptikzpicture
\stoptext

**************************************
Code with problems:
**************************************
\usemodule[tikz]
\usetikzlibrary[patterns]
\starttext
\starttikzpicture
\draw (0,0) -- (1,0);
\stoptikzpicture
\page
\starttikzpicture
\fill[pattern=dots] (0,0) -- (0,1) -- (1,1) -- (1,0);
\stoptikzpicture
\stoptext
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___________________________________________________________________________________

Re: t-tikz: problem with colorspace pgfprgb

[Aditya Mahajan]

On Sun, 2 Mar 2008, Finn Martensen wrote:

> 2008/3/2, Aditya Mahajan <adityam@umich.edu>:
>
>> > I have the following problem with TikZ: When I use the "patterns"
>> > library in a tikzpicture environment, the file is compiled without
>> > problems and creates a PDF file. However, Acrobat displays an error
>> > message "Could not find the ColorSpace named 'pgfprgb'". [...]
>>
>> Can you please post a minimal example? I have compiled a few examples
>>  from the tikz manual by using all tikz librarries, but never had this
>>  problem.
>
> It just discovered that it depends, e.g., on whether there is only one
> page with a tikzpicture or more pages with tikzpictures. To give code
> examples: the first works, but not the second
>
> **************************************
> Code with no problems:
> **************************************
> \usemodule[tikz]
> \usetikzlibrary[patterns]
> \starttext
> \starttikzpicture
> \fill[pattern=dots] (0,0) -- (0,1) -- (1,1) -- (1,0);
> \stoptikzpicture
> \stoptext
>
> **************************************
> Code with problems:
> **************************************
> \usemodule[tikz]
> \usetikzlibrary[patterns]
> \starttext
> \starttikzpicture
> \draw (0,0) -- (1,0);
> \stoptikzpicture
> \page
> \starttikzpicture
> \fill[pattern=dots] (0,0) -- (0,1) -- (1,1) -- (1,0);
> \stoptikzpicture
> \stoptext

I can reproduce this problem. On linux, with evince pdf viewer (2.21.91) I 
get "Error: Bad color space 'pgfprgb'", with Adobe reader (8.1.2) "Wrong 
operand type".

The example does work fine with plain TeX and LaTeX. Something 
wrong in the way patterns are handled by tikz for context. I do not think 
that anyone on this list understands the internals of TikZ. Your best bet 
is to report this to the tikz-mailing list.


Aditya
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___________________________________________________________________________________

Re: t-tikz: problem with colorspace pgfprgb

[Mojca Miklavec]

On Mon, Mar 3, 2008 at 6:15 AM, Aditya Mahajan wrote:
> On Sun, 2 Mar 2008, Finn Martensen wrote:
> > 2008/3/2, Aditya Mahajan <adityam@umich.edu>:
>  >
>  >> > I have the following problem with TikZ: When I use the "patterns"
>  >> > library in a tikzpicture environment, the file is compiled without
>  >> > problems and creates a PDF file. However, Acrobat displays an error
>  >> > message "Could not find the ColorSpace named 'pgfprgb'". [...]
>  >>
>  >> Can you please post a minimal example? I have compiled a few examples
>  >>  from the tikz manual by using all tikz librarries, but never had this
>  >>  problem.
>  >
>  > It just discovered that it depends, e.g., on whether there is only one
>  > page with a tikzpicture or more pages with tikzpictures. To give code
>  > examples: the first works, but not the second
>  >
>  > **************************************
>  > Code with no problems:
>  > **************************************
>  > \usemodule[tikz]
>  > \usetikzlibrary[patterns]
>  > \starttext
>  > \starttikzpicture
>  > \fill[pattern=dots] (0,0) -- (0,1) -- (1,1) -- (1,0);
>  > \stoptikzpicture
>  > \stoptext
>  >
>  > **************************************
>  > Code with problems:
>  > **************************************
>  > \usemodule[tikz]
>  > \usetikzlibrary[patterns]
>  > \starttext
>  > \starttikzpicture
>  > \draw (0,0) -- (1,0);
>  > \stoptikzpicture
>  > \page
>  > \starttikzpicture
>  > \fill[pattern=dots] (0,0) -- (0,1) -- (1,1) -- (1,0);
>  > \stoptikzpicture
>  > \stoptext
>
>  I can reproduce this problem. On linux, with evince pdf viewer (2.21.91) I
>  get "Error: Bad color space 'pgfprgb'", with Adobe reader (8.1.2) "Wrong
>  operand type".
>
>  The example does work fine with plain TeX and LaTeX. Something
>  wrong in the way patterns are handled by tikz for context. I do not think
>  that anyone on this list understands the internals of TikZ. Your best bet
>  is to report this to the tikz-mailing list.

Till Tantau has already replied (privately):

>  I tracked down this problem. It turns out that ConTeXt does, well,
>  radical things with the page resources (it simply resets them after
>  each page, which is why a pattern cannot be used on any page other
>  than the page on which it is defined). I'll try to fix this later,
>  although ConTeXt could be a bit less aggressive, here...

--------

>  I fixed this in the CVS. You will have to check it out to use the patch.
>
>  The main problem is that pgf and context both fight over who can set
>  page resources. As there is no clean way to do this, both pgf and
>  context have their own systems.
>
>  Actually, context's system is a bit cleaner, but we also have to
>  support latex and plain tex.
>
>  Anyway, I put in some patches that should solve the problem under
>  normal circumstances. If you use ConTeXt commands that also mess
>  around with extended graphic states, some further changes would
>  presumably be necessary, but I'm not sure.

So ... feel free to test it (should I set up automatic updates of tikz
from cvs for the minimals?).

Mojca
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___________________________________________________________________________________

Re: t-tikz: problem with colorspace pgfprgb

[Aditya Mahajan]

On Mon, 3 Mar 2008, Mojca Miklavec wrote:

> On Mon, Mar 3, 2008 at 6:15 AM, Aditya Mahajan wrote:
>> On Sun, 2 Mar 2008, Finn Martensen wrote:
>>> 2008/3/2, Aditya Mahajan <adityam@umich.edu>:
>> >
>> >>> I have the following problem with TikZ: When I use the "patterns"
>> >>> library in a tikzpicture environment, the file is compiled without
>> >>> problems and creates a PDF file. However, Acrobat displays an error
>> >>> message "Could not find the ColorSpace named 'pgfprgb'". [...]
>> >>
>> >> Can you please post a minimal example? I have compiled a few examples
>> >>  from the tikz manual by using all tikz librarries, but never had this
>> >>  problem.
>> >
>> > It just discovered that it depends, e.g., on whether there is only one
>> > page with a tikzpicture or more pages with tikzpictures. To give code
>> > examples: the first works, but not the second
>> >
>> > **************************************
>> > Code with no problems:
>> > **************************************
>> > \usemodule[tikz]
>> > \usetikzlibrary[patterns]
>> > \starttext
>> > \starttikzpicture
>> > \fill[pattern=dots] (0,0) -- (0,1) -- (1,1) -- (1,0);
>> > \stoptikzpicture
>> > \stoptext
>> >
>> > **************************************
>> > Code with problems:
>> > **************************************
>> > \usemodule[tikz]
>> > \usetikzlibrary[patterns]
>> > \starttext
>> > \starttikzpicture
>> > \draw (0,0) -- (1,0);
>> > \stoptikzpicture
>> > \page
>> > \starttikzpicture
>> > \fill[pattern=dots] (0,0) -- (0,1) -- (1,1) -- (1,0);
>> > \stoptikzpicture
>> > \stoptext
>>
>>  I can reproduce this problem. On linux, with evince pdf viewer (2.21.91) I
>>  get "Error: Bad color space 'pgfprgb'", with Adobe reader (8.1.2) "Wrong
>>  operand type".
>>
>>  The example does work fine with plain TeX and LaTeX. Something
>>  wrong in the way patterns are handled by tikz for context. I do not think
>>  that anyone on this list understands the internals of TikZ. Your best bet
>>  is to report this to the tikz-mailing list.
>
> Till Tantau has already replied (privately):
>
>>  I tracked down this problem. It turns out that ConTeXt does, well,
>>  radical things with the page resources (it simply resets them after
>>  each page, which is why a pattern cannot be used on any page other
>>  than the page on which it is defined). I'll try to fix this later,
>>  although ConTeXt could be a bit less aggressive, here...
>
> --------
>
>>  I fixed this in the CVS. You will have to check it out to use the patch.
>>
>>  The main problem is that pgf and context both fight over who can set
>>  page resources. As there is no clean way to do this, both pgf and
>>  context have their own systems.
>>
>>  Actually, context's system is a bit cleaner, but we also have to
>>  support latex and plain tex.
>>
>>  Anyway, I put in some patches that should solve the problem under
>>  normal circumstances. If you use ConTeXt commands that also mess
>>  around with extended graphic states, some further changes would
>>  presumably be necessary, but I'm not sure.

Works well the minimal example that Finn posted.

> So ... feel free to test it (should I set up automatic updates of tikz
> from cvs for the minimals?).

That will be nice. Actually, what do you mirror at the minimals, the 
current context stable or the current beta?

Aditya
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___________________________________________________________________________________

Re: t-tikz: problem with colorspace pgfprgb

[Mojca Miklavec]

>  > So ... feel free to test it (should I set up automatic updates of tikz
>  > from cvs for the minimals?).
>
>  That will be nice. Actually, what do you mirror at the minimals, the
>  current context stable or the current beta?

Both. One can choose current, beta or "any" verison (by date - but not
a complete archive is there). However, the scripts (mtxrun,
texmfstart) are from current, in the best hope that the versions do
not differ too much.

There is also an experimental branch, but it does not really work at
the moment. (I have no idea how to get the latest luatex binaries and
don't see many other reasons at the moment, but if I get some idea, I
will implement it.)

Mojca
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___________________________________________________________________________________

Re: t-tikz: problem with colorspace pgfprgb

[Aditya Mahajan]

On Mon, 3 Mar 2008, Mojca Miklavec wrote:

>> > So ... feel free to test it (should I set up automatic updates of tikz
>> > from cvs for the minimals?).
>>
>>  That will be nice. Actually, what do you mirror at the minimals, the
>>  current context stable or the current beta?
>
> Both. One can choose current, beta or "any" verison (by date - but not
> a complete archive is there). However, the scripts (mtxrun,
> texmfstart) are from current, in the best hope that the versions do
> not differ too much.

Then tikz should go to the current branch. TikZ CVS updates are usually 
more stable than context beta, so hopefully they will not break anything 
someone is using in production.

Aditya
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___________________________________________________________________________________

Re: t-tikz: problem with colorspace pgfprgb

[Willi Egger]

Hi Mojca,

I would welcome such a feature!

Willi
On Mar 3, 2008, at 3:25 PM, Mojca Miklavec wrote:

> So ... feel free to test it (should I set up automatic updates of tikz
> from cvs for the minimals?).

BOEDE
Book and Electronic Document Engineering
Willi Egger
w.egger@boede.nl
KvK 17138708



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