* Rendering Standalone MetaPost Graphics with ConTeXt
@ 2022-05-19 8:23 Vincent Hennebert via ntg-context
2022-05-19 8:53 ` śrīrāma via ntg-context
0 siblings, 1 reply; 3+ messages in thread
From: Vincent Hennebert via ntg-context @ 2022-05-19 8:23 UTC (permalink / raw)
To: mailing list for ConTeXt users; +Cc: Vincent Hennebert
I’d like to use MetaPost to generate all sorts of standalone graphics
(ultimately converted to SVG). For various reasons (among others,
MetaFun and advanced text processing) I want to use MetaPost as
embedded in ConTeXt rather than a standalone installation.
---- metapost.mp ----
fill fullcircle scaled 10cm;
----
Whether I run
context metapost.mp
or
mtxrun --script metapost metapost.mp
I get a PDF document that contains no page.
The mtxrun version generates the following temp file:
---- mptopdf-temp.tex ----
\starttext
\startMPinclusions
fill fullcircle scaled 10cm;
\stopMPinclusions
\stoptext
----
Looking at the wiki, it seems that \startMPinclusions is not meant to
actually render any content, just to include MetaPost code like
function definitions. I guess I would have expected \startMPpage
instead.
Am I doing something wrong, or is that an error in ConTeXt?
Thanks,
Vincent
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* Re: Rendering Standalone MetaPost Graphics with ConTeXt
2022-05-19 8:23 Rendering Standalone MetaPost Graphics with ConTeXt Vincent Hennebert via ntg-context
@ 2022-05-19 8:53 ` śrīrāma via ntg-context
2022-05-19 16:22 ` Vincent Hennebert via ntg-context
0 siblings, 1 reply; 3+ messages in thread
From: śrīrāma via ntg-context @ 2022-05-19 8:53 UTC (permalink / raw)
To: mailing list for ConTeXt users; +Cc: śrīrāma
On 5/19/22 1:53 PM Vincent Hennebert via ntg-context wrote:
> Looking at the wiki, it seems that \startMPinclusions is not meant to
> actually render any content, just to include MetaPost code like
> function definitions. I guess I would have expected \startMPpage
> instead.
>
> Am I doing something wrong, or is that an error in ConTeXt?
The MP statements should be inside a beginfig() .. endfig.
With metapost.mp containing –
beginfig();
draw fullcircle scaled 10cm;
endfig;
the temporary file from mptopdf will have (\start...\stop)MPpage as required.
Sreeram
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___________________________________________________________________________________
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* Re: Rendering Standalone MetaPost Graphics with ConTeXt
2022-05-19 8:53 ` śrīrāma via ntg-context
@ 2022-05-19 16:22 ` Vincent Hennebert via ntg-context
0 siblings, 0 replies; 3+ messages in thread
From: Vincent Hennebert via ntg-context @ 2022-05-19 16:22 UTC (permalink / raw)
To: mailing list for ConTeXt users; +Cc: Vincent Hennebert
On Thu, 2022-05-19 at 14:23 +0530, śrīrāma wrote:
> On 5/19/22 1:53 PM Vincent Hennebert via ntg-context wrote:
> > Looking at the wiki, it seems that \startMPinclusions is not meant
> > to
> > actually render any content, just to include MetaPost code like
> > function definitions. I guess I would have expected \startMPpage
> > instead.
> >
> > Am I doing something wrong, or is that an error in ConTeXt?
>
> The MP statements should be inside a beginfig() .. endfig.
Oh, I see. Not super fan of enclosing each and every of my graphics in
a beginfig...endfig statement, but it does the job indeed.
Although in my case I must give a number parameter to beginfig,
otherwise I get an error.
Thanks Sreeram!
Vincent
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___________________________________________________________________________________
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