Re: [NTG-context] placefigure, usetikzlibrary and readfile
On 8/1/2021 10:27 PM, Jigé via ntg-context wrote:
Hello all.
It seems that \usetikzlibrary is sometimes read, sometimes not, and I don't
understand why.
Rationale:
I would like, using one file, to use it to produce a picture, as with LaTeX's
Standalone class,
but to be able to include it in a calling document as well, for better
management of fonts, etc.
Thus this is most convenient. I have everything in the main document and I can
quickly reuse any figure elsewhere.
What I did:
I use \readfile in a main ConTeXt file document.tex to include the file
included.tex .
The file included.tex should contain *just* the TikZ picture and what is needed to
compile it "standalone".
The issue:
It seems I can call the file with the TikZ picture description multiple times,
with \readfile,
from within the very same \placefigure.
However, if I call it by using two successive \placefigure commands,
the \usetikzlibrary[blabla] in the included file doesn't seem to be recognised.
E.g. with the provided example below, the key "right angle" is not understood,
as if \usetikzlibrary[angles] was not there.
One workaround would be to use
\usetikzlibrary[allTheLibrariesISupposeMightEverBeNeeded]
in the calling file. But I don't like it. I would rather have only the TikZ
libraries relevant to some picture included in the corresponding file.
I'm quite startled by the fact that :
> \placefigure[here][]{This is a figure}{
>\readfile{included}{}{File not found.}
>\readfile{included}{}{File not found.}
> }
compiles but
> \placefigure[here][]{This is a figure}{
>\readfile{included}{}{File not found.}
> }
> \placefigure[here][]{This is a figure}{
>\readfile{included}{}{File not found.}
> }
does not.
modules are loaded only once so you just have to call it in the main
document (more efficient than reloading each time anyway)
loading some module inside a figure is actually problemantic because you
can end up with a mix of global and local definitions depending on how a
module is set up (and tikz being pretty large it might be that at some
point you can expect problems, apart from loading taking time)
you can try to do \input {m-tikz.mlxl} or whatever but don't expect much
help when there is an isseu due to multiple loading of tikz
if there's a lot of extra tikz stuff then you can put that in a privane
module or environment (these are also loaded once) and load that one
if you use the project structure you can actually share environments and
again these are then loaded once
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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[NTG-context] placefigure, usetikzlibrary and readfile
Hello all.
It seems that \usetikzlibrary is sometimes read, sometimes not, and I don't
understand why.
Rationale:
I would like, using one file, to use it to produce a picture, as with LaTeX's
Standalone class,
but to be able to include it in a calling document as well, for better
management of fonts, etc.
Thus this is most convenient. I have everything in the main document and I can
quickly reuse any figure elsewhere.
What I did:
I use \readfile in a main ConTeXt file document.tex to include the file
included.tex .
The file included.tex should contain *just* the TikZ picture and what is needed
to compile it "standalone".
The issue:
It seems I can call the file with the TikZ picture description multiple times,
with \readfile,
from within the very same \placefigure.
However, if I call it by using two successive \placefigure commands,
the \usetikzlibrary[blabla] in the included file doesn't seem to be recognised.
E.g. with the provided example below, the key "right angle" is not understood,
as if \usetikzlibrary[angles] was not there.
One workaround would be to use
\usetikzlibrary[allTheLibrariesISupposeMightEverBeNeeded]
in the calling file. But I don't like it. I would rather have only the TikZ
libraries relevant to some picture included in the corresponding file.
I'm quite startled by the fact that :
> \placefigure[here][]{This is a figure}{
>\readfile{included}{}{File not found.}
>\readfile{included}{}{File not found.}
> }
compiles but
> \placefigure[here][]{This is a figure}{
>\readfile{included}{}{File not found.}
> }
> \placefigure[here][]{This is a figure}{
>\readfile{included}{}{File not found.}
> }
does not.
All the best!
Example:
Begin document.tex
\usemodule[tikz]
\starttext
\usetikzlibrary[angles] % Doesn't compile if this is commented out.
%\placefigure[here][]{This is a figure}{
% \readfile{included}{}{File not found.}
% \readfile{included}{}{File not found.}
%}
\placefigure[here][]{This is a figure}{
\ReadFile{included}{}
}
\placefigure[here][]{This is a figure}{
\ReadFile{included}{}
}
\stoptext
End document.tex
Begin included.tex
\usemodule[tikz]
\usetikzlibrary[angles]
%\doifnotmode{*text,*bodypart}{ \startTEXpage[fit] }
\doifnotmode{*text,*bodypart}{ \startTEXpage[fit] \usemodule[tikz]
\usetikzlibrary[angles] }
\hbox{\starttikzpicture[]
\draw[]
(0,0) coordinate (A) node[left] {$A$}
-- (4,0) coordinate (B) node[right] {$B$}
-- (0,3) coordinate (C) node[left] {$C$}
-- cycle
pic [draw, angle radius=0.5cm] {right angle = B--A--C} ;
\stoptikzpicture}
\doifnotmode{*text,*bodypart}{ \stopTEXpage }
End included.tex
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