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标注和投影仪

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标注和投影仪

我正在尝试 Andrew 提供的标注代码如何在投影仪幻灯片中打开临时的漫画状气球？，但我收到一个错误：

Undefined control sequence. \pgf@sh@bg@ellipse callout ...pgf@sh@np@\pgf@test \noexpand \endcsname }\ede... l.20 \end{frame}

我在 Mac OS X Lion（10.7.2）上使用 TexLive-2011。

答案1

这是 PGF/TikZ 2.1 的一个已知错误（请参阅http://groups.google.com/group/comp.text.tex/browse_thread/thread/b41b47158ac5d221/b7428bd8ca1084ae?pli=1）

将以下补丁另存为pgflibraryshapes.callouts.code.tex.diff并将其应用于文件pgflibraryshapes.callouts.code.tex（您可能需要先创建备份），例如

patch -i pgflibraryshapes.callouts.code.tex.diff ${TEXMF}/tex/generic/pgf/libraries/shapes/pgflibraryshapes.callouts.code.tex

（其中${TEXMF}是您的本地目录的路径TEXMF）

@@ -247,9 +247,9 @@
            \pgf@lib@callouts@shortenpointer%
            \pgf@lib@ellipsecallout@getpoints%  
            \calloutpointeranchor%  
-           \ifx\pgf@test\pgfutil@empty%
+           \ifx\pgf@node@name\pgfutil@empty%
            \else%
-               \edef\pgf@sh@@temp{\noexpand\expandafter\noexpand\pgfutil@g@addto@macro\noexpand\csname pgf@sh@np@\pgf@test\noexpand\endcsname}%
+               \edef\pgf@sh@@temp{\noexpand\expandafter\noexpand\pgfutil@g@addto@macro\noexpand\csname pgf@sh@np@\pgf@node@name\noexpand\endcsname}%
                \edef\pgf@sh@@@temp{%
                    \noexpand\def\noexpand\calloutpointeranchor{%
                        \noexpand\pgf@x\the\pgf@x%
@@ -568,15 +568,15 @@
            \pgfmathsetlengthmacro\pointerwidth{\pgfkeysvalueof{/pgf/callout pointer width}}%
            \pgf@lib@rectanglecallout@pointer%
            %
-           % \pgf@test = the shape name (from \pgfmultipartnode)
+           % \pgf@node@name = the shape name (from \pgfmultipartnode)
            %
-           \ifx\pgf@test\pgfutil@empty%
+           \ifx\pgf@node@name\pgfutil@empty%
            \else%
                %
                % Now hack an extra saved anchor \calloutpointeranchor,
                % with the new anchor for the callout pointer.
                %
-               \edef\pgf@sh@@temp{\noexpand\expandafter\noexpand\pgfutil@g@addto@macro\noexpand\csname pgf@sh@np@\pgf@test\noexpand\endcsname}%
+               \edef\pgf@sh@@temp{\noexpand\expandafter\noexpand\pgfutil@g@addto@macro\noexpand\csname pgf@sh@np@\pgf@node@name\noexpand\endcsname}%
                \edef\pgf@sh@@@temp{%
                    \noexpand\def\noexpand\calloutpointeranchor{%
                        \noexpand\pgf@x\the\pgf@x%
@@ -862,9 +862,9 @@
            \pgfextract@process\calloutpointer{%
                \pgfpointanchor{pgf@lib@callout@pointer}{center}%
            }%
-           \ifx\pgf@test\pgfutil@empty%
+           \ifx\pgf@node@name\pgfutil@empty%
            \else%
-               \edef\pgf@sh@@temp{\noexpand\expandafter\noexpand\pgfutil@g@addto@macro\noexpand\csname pgf@sh@np@\pgf@test\noexpand\endcsname}%
+               \edef\pgf@sh@@temp{\noexpand\expandafter\noexpand\pgfutil@g@addto@macro\noexpand\csname pgf@sh@np@\pgf@node@name\noexpand\endcsname}%
                \edef\pgf@sh@@@temp{%
                    \noexpand\def\noexpand\calloutpointeranchor{%
                        \noexpand\pgf@x\the\pgf@x%

答案2

http://old.nabble.com/callout-absolute-pointer---desired-effect-but-compile-error-td30937456.html给出了一个干扰更少的解决方案：
确保在序言中包含以下内容：

\usetikzlibrary{shapes.callouts}
\usetikzlibrary{decorations.text}

第二个库是非直观的部分；它定义了缺失的\pgf@test。

确实，pgf 2.10-1（ubuntu 12.04）对我有用。

答案3

有一个类似的问题TikZ「callout」定位问题。我从互联网上找到了其他解决方案，我们可以用 替换\pgf@test所有\pgf@node@name内容pgflibraryshapes.callouts.code.tex。

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