* Polar pgfplots seems to be broken
@ 2020-12-20 23:35 Gavin
2020-12-21 5:51 ` Aditya Mahajan
0 siblings, 1 reply; 2+ messages in thread
From: Gavin @ 2020-12-20 23:35 UTC (permalink / raw)
To: ntg-context
Hello,
I’m drawing solar system diagrams using the pgfplots module, but the polar library seem to be broken. It looks like it is calling something with a \begin{axis}... command. Here is the error message for a short document, included below.
> tex error > tex error on line 18 in file /Users/Gavin/Documents/Computer/ConTeXt/Polar Plot Experiments/Untitled.tex: ! Undefined control sequence
>
> \pgfplots@environment@polaraxis@ [#1]->\begin
> {axis}[#1,data cs=polar,axis type=polar]
> l.18 \startpolaraxis[]
>
> 16 \startsection[title={Polar Plot}]
> 17 \starttikzpicture % tikz code
> 18 >> \startpolaraxis[]
> 19 \addplot+[mark=none,domain=0:720,samples=600]{sin(4*x)};
> 20 \stoppolaraxis
> 21 \stoptikzpicture
> 22 \stopsection
>
> mtx-context | fatal error: return code: 256
I’d love a fix or an idea for a work around. I’m using ConTeXt Suite (ver: 2020.12.15 10:10 MKIV fmt: 2020.12.16), but I’ve tried it with TeX Live 2020 and the MkIV included with LMTX. Both have the same issue.
Thanks!
Gavin
\usemodule[tikz] % TikZ module for diagrams
\usemodule[pgfplots] % PGFPlots module for graphs
\pgfplotsset{compat=1.17} % Required to get new any features that could cause compatibility issues.
\usepgfplotslibrary[polar] % ConTEXt
\starttext
\startsection[title={Rectangular Plot}]
\starttikzpicture% tikz code
\startaxis[]
\addplot+[mark=none,domain=0:720,samples=600]{sin(4*x)};
\stopaxis
\stoptikzpicture
\stopsection
\startsection[title={Polar Plot}]
\starttikzpicture % tikz code
\startpolaraxis[]
\addplot+[mark=none,domain=0:720,samples=600]{sin(4*x)};
\stoppolaraxis
\stoptikzpicture
\stopsection
\stoptext
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* Re: Polar pgfplots seems to be broken
2020-12-20 23:35 Polar pgfplots seems to be broken Gavin
@ 2020-12-21 5:51 ` Aditya Mahajan
0 siblings, 0 replies; 2+ messages in thread
From: Aditya Mahajan @ 2020-12-21 5:51 UTC (permalink / raw)
To: mailing list for ConTeXt users
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On Sun, 20 Dec 2020, Gavin wrote:
> Hello,
>
> I’m drawing solar system diagrams using the pgfplots module, but the polar library seem to be broken. It looks like it is calling something with a \begin{axis}... command. Here is the error message for a short document, included below.
>
> > tex error > tex error on line 18 in file /Users/Gavin/Documents/Computer/ConTeXt/Polar Plot Experiments/Untitled.tex: ! Undefined control sequence
> >
> > \pgfplots@environment@polaraxis@ [#1]->\begin
> > {axis}[#1,data cs=polar,axis type=polar]
> > l.18 \startpolaraxis[]
> >
> > 16 \startsection[title={Polar Plot}]
> > 17 \starttikzpicture % tikz code
> > 18 >> \startpolaraxis[]
> > 19 \addplot+[mark=none,domain=0:720,samples=600]{sin(4*x)};
> > 20 \stoppolaraxis
> > 21 \stoptikzpicture
> > 22 \stopsection
> >
> > mtx-context | fatal error: return code: 256
>
> I’d love a fix or an idea for a work around.
This is a bug in pgfplots macro pgfplotsdefineaxistype, which uses an explicit \begin{axis} ... \end{axis} instead of the more portable \axis ... \endaxis. Attached is a quick fix, but it has been quite a while since I looked at pgfplots code, so it may be better to post a bug-report on pgfplots mailing list for a proper fix.
Aditya
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maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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