[NTG-context] Math in metapost
I would like to put some math in metapost pictures. For the moment I am using
textext for the typesetting in my metapost macro: pic :=
textext(\setbox0=\hbox{\color[textcolor]labeltext}\dp0=0pt\box0);
picture pic will be placed in the metapost figure.
Simple math like $p=2$ works fine, but the system chokes on something like the
following matrix:
$\pmatrix{p_{0|0}\cr}$ (it does fine in ConTeXt itself).
The error is: ! Only one # is allowed per tab.
system tex error on line 6 in file Info/kanaalmatrix.tex: Only one # is
allowed per tab ...
Perhaps I am too optimistic about textext's possibilities. But how can I
accomplish the placement of these and more elaborate formulae in metapost
pictures using ConTeXt? It is of the essence for a series of Powerpoint slides
I am preparing, wheein these formulae must be placed as individual pictures.
Hans van der Meer
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Re: [NTG-context] Math in metapost
Hi,
I am not a specialist, but I use the « btex etex » commands, such as
dotlabel.bot (btex \switchtobodyfont[10pt] \strut $R$ etex, z1)
I just tested with the latest beta, and everything works fine, but not the
\pmatrix construct (I tried also with ${k}\choose{n}$, which works fine too.
I put my test file in which some maths is used in a MetaPost graphic here:
http://dl.dropbox.com/u/4316076/test-graphique.tex
http://dl.dropbox.com/u/4316076/test-graphique.pdf
Best regards: OK
On 30 nov. 2011, at 20:59, Hans van der Meer wrote:
I would like to put some math in metapost pictures. For the moment I am using
textext for the typesetting in my metapost macro: pic :=
textext(\setbox0=\hbox{\color[textcolor]labeltext}\dp0=0pt\box0);
picture pic will be placed in the metapost figure.
Simple math like $p=2$ works fine, but the system chokes on something like
the following matrix:
$\pmatrix{p_{0|0}\cr}$ (it does fine in ConTeXt itself).
The error is: ! Only one # is allowed per tab.
system tex error on line 6 in file Info/kanaalmatrix.tex: Only one # is
allowed per tab ...
Perhaps I am too optimistic about textext's possibilities. But how can I
accomplish the placement of these and more elaborate formulae in metapost
pictures using ConTeXt? It is of the essence for a series of Powerpoint
slides I am preparing, wheein these formulae must be placed as individual
pictures.
Hans van der Meer
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Re: [NTG-context] Math in metapost
On 30-11-2011 20:59, Hans van der Meer wrote:
I would like to put some math in metapost pictures. For the moment I am using textext for the typesetting in my metapost
macro: pic :=
textext(\setbox0=\hbox{\color[textcolor]labeltext}\dp0=0pt\box0);
picture pic will be placed in the metapost figure.
Simple math like $p=2$ works fine, but the system chokes on something like the
following matrix:
$\pmatrix{p_{0|0}\cr}$ (it does fine in ConTeXt itself).
The error is: ! Only one # is allowed per tab.
system tex error on line 6 in file Info/kanaalmatrix.tex: Only one # is
allowed per tab ...
Perhaps I am too optimistic about textext's possibilities. But how can I
accomplish the placement of these and more elaborate formulae in metapost
pictures using ConTeXt? It is of the essence for a series of Powerpoint slides
I am preparing, wheein these formulae must be placed as individual pictures.
you can patch pmatrix:
\unexpanded\def\pmatrix#1%
{\left(\matrix{#1}\right)}
(i'll make the lot unexpandable)
btw, for large chunks you can consider using setups
\startsetups lots-of-math
\stopsetups
... \textext(\setup[lots-of-math])
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
| www.pragma-pod.nl
-
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