* runMPgraphicstrue produces undefined figure
@ 2006-09-12 21:39 Sanjoy Mahajan
2006-09-12 22:07 ` Aditya Mahajan
0 siblings, 1 reply; 6+ messages in thread
From: Sanjoy Mahajan @ 2006-09-12 21:39 UTC (permalink / raw)
I'm playing with simple files in order to learn metafun. The following
small example produces an undefined figure. It illustrates either a
context problem or, more likely, a confusion on my part.
================= cut here ===========================================
\runMPgraphicstrue
\starttext
\startreusableMPgraphic{a}
fill fullcircle scaled 2cm;
\stopreusableMPgraphic
\placefigure[here,none]{}{\reuseMPgraphic{a}}
\input tufte
\stoptext
================= cut here ===========================================
The figure is a square saying 'undefined'. Taking away the
\runMPgraphicstrue line produces the expected filled circle.
I use a web2c distribution (linux) with
context version 2006.08.08 21:51,
TeXExec | version 6.2.0 - 1997-2006 - PRAGMA ADE/POD
It passes the write18 test given in the metafun-s.pdf manual (p.214 of
the PDF file).
-Sanjoy
`A society of sheep must in time beget a government of wolves.'
- Bertrand de Jouvenal
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: runMPgraphicstrue produces undefined figure
2006-09-12 21:39 runMPgraphicstrue produces undefined figure Sanjoy Mahajan
@ 2006-09-12 22:07 ` Aditya Mahajan
2006-09-13 4:12 ` Sanjoy Mahajan
0 siblings, 1 reply; 6+ messages in thread
From: Aditya Mahajan @ 2006-09-12 22:07 UTC (permalink / raw)
On Tue, 12 Sep 2006, Sanjoy Mahajan wrote:
> I'm playing with simple files in order to learn metafun. The following
> small example produces an undefined figure. It illustrates either a
> context problem or, more likely, a confusion on my part.
>
> ================= cut here ===========================================
> \runMPgraphicstrue
> \starttext
>
> \startreusableMPgraphic{a}
> fill fullcircle scaled 2cm;
> \stopreusableMPgraphic
>
> \placefigure[here,none]{}{\reuseMPgraphic{a}}
> \input tufte
> \stoptext
> ================= cut here ===========================================
>
> The figure is a square saying 'undefined'. Taking away the
> \runMPgraphicstrue line produces the expected filled circle.
>
> I use a web2c distribution (linux) with
>
> context version 2006.08.08 21:51,
> TeXExec | version 6.2.0 - 1997-2006 - PRAGMA ADE/POD
Strange... It works fine here with
ConTeXt ver: 2006.09.10 13:33 MK II fmt: 2006.9.10 int:
english/english
Normally, runMPgraphics is set to true in one of the files, so you do
not need to set it to true. I have no idea why you should be getting
'undefined'. Check your log file for
systems : system commands are enabled
and
system(mpost -progname=metafun -mem=metafun mptest-mpgraph)...executed.
Aditya
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: runMPgraphicstrue produces undefined figure
2006-09-12 22:07 ` Aditya Mahajan
@ 2006-09-13 4:12 ` Sanjoy Mahajan
2006-09-13 7:34 ` Hans Hagen
0 siblings, 1 reply; 6+ messages in thread
From: Sanjoy Mahajan @ 2006-09-13 4:12 UTC (permalink / raw)
> Check your log file for
>
> systems : system commands are enabled
Thanks, that was the problem. It was saying 'disabled' instead. The
fix was to change /etc/texmf/texmf.cnf to enable write18. The
shell_escape line has to be set to 't' rather than 'f', i.e.:
shell_escape = t
Actually, on my system (Ubuntu, a Debian derivative), changing the
texmf.cnf file directly is not a good idea. Instead one should change
the same line in /etc/texmf/texmf.d/95NonPath.cnf and then run
'update-texmf' as root to generate the texmf.cnf file.
Warning: If you've enabled 'shell_escape', then don't run *TeX on
untrusted files, in case they do anything malicious like 'rm -fr /'.
Also now I see how I got fooled into thinking that write18 was already
enabled. The one-line tex file from metafun-s.pdf contains
\immediate\write18{echo It works}. When run it produces an "It works"
whether or not write18 is enabled. If disabled:
(./3.tex
echo It works
)
which made me think that all was okay. If enabled you get this:
\write18 enabled.
(./3.texIt works
)
-Sanjoy
`Never underestimate the evil of which men of power are capable.'
--Bertrand Russell, _War Crimes in Vietnam_, chapter 1.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: runMPgraphicstrue produces undefined figure
2006-09-13 4:12 ` Sanjoy Mahajan
@ 2006-09-13 7:34 ` Hans Hagen
2006-09-13 13:32 ` Sanjoy Mahajan
2006-09-13 13:38 ` Sanjoy Mahajan
0 siblings, 2 replies; 6+ messages in thread
From: Hans Hagen @ 2006-09-13 7:34 UTC (permalink / raw)
Sanjoy Mahajan wrote:
> Actually, on my system (Ubuntu, a Debian derivative), changing the
> texmf.cnf file directly is not a good idea. Instead one should change
> the same line in /etc/texmf/texmf.d/95NonPath.cnf and then run
> 'update-texmf' as root to generate the texmf.cnf file.
>
incredible (probably a copy of texmf.cnf in your local tree also works
ok; in that case: clean up the file a bit and things run faster too)
> Warning: If you've enabled 'shell_escape', then don't run *TeX on
> untrusted files, in case they do anything malicious like 'rm -fr /'.
>
well, opening files and overwriting them can be done anyway
Hans
-----------------------------------------------------------------
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com
| www.pragma-pod.nl
-----------------------------------------------------------------
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: runMPgraphicstrue produces undefined figure
2006-09-13 7:34 ` Hans Hagen
@ 2006-09-13 13:32 ` Sanjoy Mahajan
2006-09-13 13:38 ` Sanjoy Mahajan
1 sibling, 0 replies; 6+ messages in thread
From: Sanjoy Mahajan @ 2006-09-13 13:32 UTC (permalink / raw)
Hans Hagen wrote:
> Sanjoy Mahajan wrote:
> > Actually, on my system (Ubuntu, a Debian derivative), changing the
> > texmf.cnf file directly is not a good idea. Instead one should change
> > the same line in /etc/texmf/texmf.d/95NonPath.cnf and then run
> > 'update-texmf' as root to generate the texmf.cnf file.
> >
> incredible (probably a copy of texmf.cnf in your local tree also works
> ok; in that case: clean up the file a bit and things run faster too)
Yeah, it's a pain but it does have one justificaiton. This texmf.cnf
system is easy for computers to update, although not for people. The
idea is that new tex-related packages add options by placing the
options in a file in /etc/texmf/texmf.d/ and then running update-texmf
to combine the configlets into the One File to rule them all.
The diversity of configuration systems and options across different
tex installations is a big pain, makes it hard to create
cross-platform software.
-Sanjoy
`Never underestimate the evil of which men of power are capable.'
--Bertrand Russell, _War Crimes in Vietnam_, chapter 1.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: runMPgraphicstrue produces undefined figure
2006-09-13 7:34 ` Hans Hagen
2006-09-13 13:32 ` Sanjoy Mahajan
@ 2006-09-13 13:38 ` Sanjoy Mahajan
1 sibling, 0 replies; 6+ messages in thread
From: Sanjoy Mahajan @ 2006-09-13 13:38 UTC (permalink / raw)
Hans Hagen wrote:
> well, opening files and overwriting them can be done anyway
That's true. Though the default teTeX setup seems to be (from
texmf.cnf):
% Allow TeX \openin, \openout, or \input on filenames starting with `.'
% (e.g., .rhosts) or outside the current tree (e.g., /etc/passwd)?
% a (any) : any file can be opened.
% r (restricted) : disallow opening "dotfiles".
% p (paranoid) : as 'r' and disallow going to parent directories, and
% restrict absolute paths to be under $TEXMFOUTPUT.
openout_any = p
openin_any = a
So you can read any file but you cannot write any file. Seems
sensible.
-Sanjoy
`Never underestimate the evil of which men of power are capable.'
--Bertrand Russell, _War Crimes in Vietnam_, chapter 1.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2006-09-13 13:38 UTC | newest]
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2006-09-12 21:39 runMPgraphicstrue produces undefined figure Sanjoy Mahajan
2006-09-12 22:07 ` Aditya Mahajan
2006-09-13 4:12 ` Sanjoy Mahajan
2006-09-13 7:34 ` Hans Hagen
2006-09-13 13:32 ` Sanjoy Mahajan
2006-09-13 13:38 ` Sanjoy Mahajan
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