☰

ConTeXt 和 pgfplots 3d 错误

tag-icon • tag-icon pgfplots context tikz-3dplot
ConTeXt 和 pgfplots 3d 错误

我有一个旧文档，正在尝试重新编译，但 3D 绘图不再起作用。我将其简化为以下 MWE：

\usemodule[tikz]
\usemodule[pgfplots]
\pgfplotsset{compat=1.18}

\starttext

\starttikzpicture[scale=1]
  \startaxis[
    xmin=0, xmax=10, ymin=2, ymax=8, ticks=none,
  ]
    \addplot3 [surf, shader=interp, domain=0:10] { (x-5)^2 };
  \stopaxis
\stoptikzpicture

\stoptext

我收到指向该\stopaxis命令的以下错误：

A prefix should be followed by a quantity that can be assigned to. Intermediatespaces and \relax tokens are gobbled in the process.

这似乎与 tikz 的内部有关，所以我真的不知道该怎么做...有解决方法吗？

提前致谢，

答案1

下面的补丁可以解决这个问题：

diff --git a/texmf-modules/tex/generic/pgfplots/pgfplotsmeshplothandler.code.tex b/texmf-modules/tex/generic/pgfplots/pgfplotsmeshplothandler.code.tex
index 60d6274..106c490 100644
--- a/texmf-modules/tex/generic/pgfplots/pgfplotsmeshplothandler.code.tex
+++ b/texmf-modules/tex/generic/pgfplots/pgfplotsmeshplothandler.code.tex
@@ -2804,6 +2804,9 @@
                \def\pgfplotsretval{4}%
            \fi
        \fi
+       \if0\pgfplotsretval
+           \def\pgfplotsretval{5}
+       \fi
        \pgfkeyslet{/pgfplots/surf shading/shading type}\pgfplotsretval%
        %
        \pgfplotsplothandlermesh@set@shader@colormap
diff --git a/texmf-modules/tex/generic/pgfplots/sys/pgflibrarypgfplots.surfshading.pgfsys-luatex.def b/texmf-modules/tex/generic/pgfplots/sys/pgflibrarypgfplots.surfshading.pgfsys-luatex.def
index 0046daa..b563732 100644
--- a/texmf-modules/tex/generic/pgfplots/sys/pgflibrarypgfplots.surfshading.pgfsys-luatex.def
+++ b/texmf-modules/tex/generic/pgfplots/sys/pgflibrarypgfplots.surfshading.pgfsys-luatex.def
@@ -61,7 +61,7 @@
        \pgfplotslibrarysurfusepath
        \endpgfpicture
    }%
-   \immediate\saveboxresource resources{
+   \saveboxresource resources{
        /Pattern << \pgfplots@glob@TMPa >> % write the pattern resource dictionary
    }\pgfutil@tempboxa
    \leavevmode

然后，下面的文档编译成功：

\usemodule[tikz]
\usemodule[pgfplots]
\pgfplotsset{compat=1.18}

\startTEXpage[offset=1dk]
\starttikzpicture
    \startaxis
        \addplot3 [surf, shader=interp, domain=0:10] { (x-5)^2 };
    \stopaxis
\stoptikzpicture
\stopTEXpage

输出

相关内容