Re: [NTG-context] [metapost] shading text

2007-05-08 Thread Peter Rolf
Stephan Hennig wrote:
 Peter Rolf schrieb:
 
 I have tested this some years ago and it worked without problems. A fast
 run with the old code ended in the nirvana for pstoedit (3.44) :(
 
 When I manually run the following commands
 
 pdftops mpy-outline1.pdf
 pstoedit -v -ssp -dt -f mpost mpy-outline1.ps mpy-outline1.mp
 
 the last lines of output are
 
 GPL Ghostscript 8.56 (2007-03-14)
 Copyright (C) 2007 artofcode LLC, Benicia, CA.  All rights reserved.
 This software comes with NO WARRANTY: see the file PUBLIC for details.
 
 That is, it seems as if pstoedit calls Ghostscript and that hangs.  I've
 updated to v8.56, recently, and didn't observe any problems with
 pstoedit and MetaPost with older versions of Ghostscript (in other
 applications).  What version of Ghostscript are you running?

also ghostscript 8.56

Good luck for the bug hunt,

Peter

 Best regards,
 Stephan Hennig
 
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Re: [NTG-context] [metapost] shading text

2007-05-08 Thread Stephan Hennig
[CC'ed back to the metapost list, since this is not only related to
ConTeXt.]

Peter Rolf schrieb:
 Stephan Hennig wrote:
 
 [makempy/pstoedit/Ghostscript hang]

 That is, it seems as if pstoedit calls Ghostscript and that hangs.
 I've updated to v8.56, recently, and didn't observe any problems
 with pstoedit and MetaPost with older versions of Ghostscript (in
 other applications).  What version of Ghostscript are you running?

 also ghostscript 8.56

Could someone with an older version of Ghostscript please check if
pstoedit/Ghostscript hang with the attached example?  That would make it
easier for me deciding where to send the bug report to.

Best regards,
Stephan Hennig

input metafun
beginfig(1);
  graphictext Outlined  text! scaled 8
  withfillcolor .7blue;
endfig;
end

Name the file outline.mp and process with

mpost outline
perl makempy.pl outline

or what's a proper method to run a Perl script on your OS.  (With MiKTeX
you can just say makempy outline.)

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Re: [NTG-context] [metapost] shading text

2007-05-08 Thread Tobias Burnus
Hi Stephan,

Stephan Hennig wrote:
 Could someone with an older version of Ghostscript please check if
 pstoedit/Ghostscript hang with the attached example?  That would make it
 easier for me deciding where to send the bug report to.
   
 mpost outline
 perl makempy.pl outline
 

$ mpost outline
This is MetaPost, Version 0.993 (Web2C 7.5.6)
...
1 output file written: outline.1
Transcript written on outline.log.
$ makempy outline
...
 MakeMPY 1.1 - MetaFun / PRAGMA ADE 2000-2004
...
pstoedit: version 3.44 / DLL interface 108 (build May  4 2007 - release
build - g++ 4.1.3 20070413 (prerelease) (SUSE Linux)) : Copyright (C)
1993 - 2006 Wolfgang Glunz
   processed texts : 1
 produced file : outline.mpy

This is with Ghostscript 8.15.3 on an openSUSE 10.3alpha3 system (i.e.
TeXLive 2007).

Tobias
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Re: [NTG-context] [metapost] shading text

2007-05-08 Thread Taco Hoekwater


Stephan Hennig wrote:
 [CC'ed back to the metapost list, since this is not only related to
 ConTeXt.]
 
 Peter Rolf schrieb:
 Stephan Hennig wrote:
 [makempy/pstoedit/Ghostscript hang]

 That is, it seems as if pstoedit calls Ghostscript and that hangs.
 I've updated to v8.56, recently, and didn't observe any problems
 with pstoedit and MetaPost with older versions of Ghostscript (in
 other applications).  What version of Ghostscript are you running?

 also ghostscript 8.56
 
 Could someone with an older version of Ghostscript please check if
 pstoedit/Ghostscript hang with the attached example?  That would make it
 easier for me deciding where to send the bug report to.

It does not hang, but does not work either:

makempy outline

  MakeMPY 1.1 - MetaFun / PRAGMA ADE 2000-2004

processing file : outline.mpo
 tex format : plain
requested texts : 1
 generating : pdf file
 generating : metapost file
pstoedit: version 3.42 / DLL interface 108 (build Jul  2 2006 - release 
build) : Copyright (C) 1993 - 2005 Wolfgang Glunz
ESP Ghostscript 815.03: Unrecoverable error, exit code 1
PostScript/PDF Interpreter finished. Return status 256 executed command 
: /usr/bin/gs -I/home/taco/.fonts -q -dDELAYBIND -dWRITESYSTEMDICT 
-dNODISPLAY -dNOEPS /tmp/psineFsL9w
The interpreter seems to have failed, cannot proceed !
processed texts : 0
  produced file : outline.mpy

Best,
Taco
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Re: [NTG-context] [metapost] shading text

2007-05-07 Thread Stephan Hennig
Peter Rolf schrieb:

 http://www.pragma-ade.com/general/manuals/mmakempy.pdf

 (this should answer some of your questions). You find the needed
 tools at

Thank you for the pointer!


 I have tested this some years ago and it worked without problems. A fast
 run with the old code ended in the nirvana for pstoedit (3.44) :(
 
 I don't know if this is a general problem, so just give it a try.

Unfortunately, pstoedit seems to fail here, too.

The following file

input metafun
beginfig(1);
  graphictext Shaded text! scaled 8
  withdrawcolor .7blue
  withfillcolor .7white
  dashed evenly
  withpen pencircle scaled 2pt;
endfig;
end

compiles fine with mpost, but hangs with a pstoedit process in the task
manager taking up 100% CPU time.


 If you get it to work, you can try the nice 'graphictext' in
 combination with 'withshade'.

This seems to be the way to go, currently.  I'll try to file a bug
report for pstoedit when I find the time.

Best regards,
Stephan Hennig

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Re: [NTG-context] [metapost] shading text

2007-05-07 Thread Stephan Hennig
Peter Rolf schrieb:

 I have tested this some years ago and it worked without problems. A fast
 run with the old code ended in the nirvana for pstoedit (3.44) :(

When I manually run the following commands

pdftops mpy-outline1.pdf
pstoedit -v -ssp -dt -f mpost mpy-outline1.ps mpy-outline1.mp

the last lines of output are

 GPL Ghostscript 8.56 (2007-03-14)
 Copyright (C) 2007 artofcode LLC, Benicia, CA.  All rights reserved.
 This software comes with NO WARRANTY: see the file PUBLIC for details.

That is, it seems as if pstoedit calls Ghostscript and that hangs.  I've
updated to v8.56, recently, and didn't observe any problems with
pstoedit and MetaPost with older versions of Ghostscript (in other
applications).  What version of Ghostscript are you running?

Best regards,
Stephan Hennig

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Re: [NTG-context] [metapost] shading text

2007-05-06 Thread Mojca Miklavec
The ConTeXt mailing list is probably more suitable for this
discussion, so I'm redirecting your question there (if anyone responds
to it).

On 5/2/07, Stephan Hennig wrote:
 Hi,

 my attempt to shade a piece of text with MetaFun fails (see below).  Is
 this a restriction of MetFun/MetaPost or of the PDF format?

 While there is an explicit example for transparent text in metafun-p.pdf
 on p. 185 I didn't find one for shaded text.  Is shading text possible?

 Best regards,
 Stephan Hennig

 input metafun
 beginfig(1);
   sh_sqr := define_linear_shade(origin, (100bp,0), white, blue);
   sh_txt := define_linear_shade(origin, (100bp,0), white, red);
   fill unitsquare scaled 100bp withshade sh_sqr;
   label(Not shaded!, (50,50)) withshade sh_txt;
 endfig;
 end

 Compile with

 mpost shad
 mptopdf shad

--

On 5/6/07, Stephan Hennig wrote:
 Mojca Miklavec schrieb:
  It should be possible to do it inside PDF, but it's not implemented (yet?).

 Thanks.  Would be a nice feature for, e.g., invitation cards.

PDF uses 8 different kinds of text: filled, stroked (already
implemented with \starteffect[outline]...\stopeffect), ... and some
others.

See Chapter 5.2 of PDF reference manual. You probably need Text
rendering type 4. Extending support for it would be a nice excercise
in metafun programming, but I'm too slow to figure it out in a
reasonable time. I *really* need to finish extending smooth shading
patterns to a more generic model, and I will keep your problem in mind
in case it remains unsolved, but don't count on me if you need it now.

There are some people on the ConTeXt mailing list (apart from Hans of
course) who might be able to help.

Mojca
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