Date: Mon, 21 Dec 2020 00:51:06 -0500 (EST) From: Aditya Mahajan

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

URL: http://mailman.ntg.nl/pipermail/ntg-context/attachments/20201221/d7278aca/at...

Aditya, Thanks for the quick fix! I will post a bug report on the pgfplots mailing list, including your helpful diagnosis of the problem. Gavin