我正在尝试缩放位于轴环境中的绘图部分。我尝试使用的一个想法可以在这里找到这里但是，当我尝试编译代码时，Latex 报告错误。如果有人可以提供关于如何规避此问题的提示，我将不胜感激？
MWE 如下。
% arara: pdflatex
% arara: clean: {files: [MWE_ScopeAxis.aux, MWE_ScopeAxis.log]}
\documentclass[tikz,border=1mm]{standalone}
\usepackage{amsmath, tikz, pgfplots}
\usetikzlibrary{calc,spy,shapes,positioning}
\pgfplotsset{compat=newest}
\begin{document}
\begin{tikzpicture}[spy/.style={%
draw,red,
line width=1pt,
circle,inner sep=0pt,
},
]
\newcommand*\myplots[1][]{
\addplot[color=blue,dashed]
table[row sep=crcr]{
1.250000000054 0.218471486504557\\1.27500000012472 0.235880794037559\\1.30000000004985 0.253093675278193\\1.32499999988962 0.269996702493353\\1.34999999996296 0.28660169532495\\1.37500000003271 0.302803529131698\\1.4 0.318627316831094\\1.42500000000018 0.333967811176506\\1.44999999975398 0.348915976282584\\1.47499999999985 0.363393665978672\\1.50000000000007 0.377386190083728\\1.52499999999677 0.391065980885588\\1.54999999999987 0.404406696565785\\1.5749999999932 0.417357153126701\\1.60000000000001 0.429890180101467\\1.62500000007965 0.441495914781593\\1.64999999998047 0.453420186117445\\1.67500000000006 0.464885624062778\\1.70000000000013 0.475698022605379\\1.72499999999977 0.486001302461843\\1.75000000007258 0.49588760557761\\1.77500000001522 0.505406921339204\\1.79999999999992 0.514575948858101\\1.8249999999994 0.523580224222934\\1.84999999999966 0.532346980549898\\1.87499999998767 0.540884368439134\\1.90000000002483 0.549236128880721\\1.92499999997271 0.557390601810701\\1.94999999999657 0.565349329095157\\1.97499999999941 0.573100654346336\\1.99999999999993 0.580661122004988\\2.02499999998678 0.588035048696743\\2.0499999999709 0.595221272967935\\2.07499999999558 0.602215073143855\\2.09999999981776 0.609014392276178\\2.12500000001126 0.615634705868222\\2.14999999999957 0.622107376143054\\2.17499999994578 0.628535289209435\\2.19999999832383 0.63479954406909\\2.225 0.640975653060916\\2.24999999999955 0.647023272731091\\2.27499999999981 0.652900079435489\\2.29999999999833 0.658608487562972\\2.32499999999118 0.664162521737991\\2.34999999999773 0.669564611132752\\2.3750000000001 0.674786909878852\\2.40000000000024 0.679871708587361\\2.42499999998267 0.68481930558268\\2.44999999993369 0.689620895991369\\2.475 0.694300387671984\\2.50000000000226 0.698847019454327\\2.52499999999607 0.703231052229968\\2.54999999999282 0.707335949070966\\2.575 0.711299740037372\\2.59999999997469 0.715121564545835\\2.62500000002107 0.719030281788718\\2.64999999998823 0.722750679025289\\2.67499999999833 0.726355404984384\\2.6999999999989 0.729841563597055\\2.72500000000001 0.733213147420525\\2.75000000000046 0.736469697155365\\2.77500000011202 0.739681867953894\\2.8 0.742786117829059\\2.82500000000028 0.745831867778158\\2.84999999999055 0.748760245235199\\2.87499999999654 0.751587709302175\\2.90000000000011 0.754337713416536\\2.92500000001402 0.756957274828441\\2.94999999995396 0.759357524849041\\2.97499999999574 0.761687855897812\\3.00000000000154 0.764338301992918\\};
% \addlegendentry{po:pid};
\addplot [color=green!50!black,dashed]
table[row sep=crcr]{
1.250000000054 0.590067068740046\\1.27500000012472 0.587559925194454\\1.30000000004985 0.586376714983635\\1.32499999988962 0.586069496190726\\1.34999999996296 0.586583764906821\\1.37500000003271 0.587586732327579\\1.4 0.589106686232638\\1.42500000000018 0.590799582313491\\1.44999999975398 0.592894933769734\\1.47499999999985 0.595115212158793\\1.50000000000007 0.597338496940835\\1.52499999999677 0.600163078036215\\1.54999999999987 0.603553183039573\\1.5749999999932 0.607355964366702\\1.60000000000001 0.611472392727962\\1.62500000007965 0.612640770551816\\1.64999999998047 0.618542970092304\\1.67500000000006 0.625478240488116\\1.70000000000013 0.63111283078678\\1.72499999999977 0.635924446858566\\1.75000000007258 0.640430875313834\\1.77500000001522 0.644633876853955\\1.79999999999992 0.647757322657836\\1.8249999999994 0.647552686193448\\1.84999999999966 0.647363620909126\\1.87499999998767 0.647117668558105\\1.90000000002483 0.646013166144435\\1.92499999997271 0.644422071010403\\1.94999999999657 0.642591297950079\\1.97499999999941 0.640866907916906\\1.99999999999993 0.639224831229371\\2.02499999998678 0.636685323281278\\2.0499999999709 0.633964341182746\\2.07499999999558 0.631446791852552\\2.09999999981776 0.628537387562625\\2.12500000001126 0.626107411465097\\2.14999999999957 0.624103000469\\2.17499999994578 0.62449136318196\\2.19999999832383 0.624449479840847\\2.225 0.6256877319412\\2.24999999999955 0.628088304645751\\2.27499999999981 0.630472877532383\\2.29999999999833 0.63283206246448\\2.32499999999118 0.635116015919806\\2.34999999999773 0.637322260692226\\2.3750000000001 0.640065236430338\\2.40000000000024 0.642534886174564\\2.42499999998267 0.644944092104574\\2.44999999993369 0.647313968075354\\2.475 0.649603381645786\\2.50000000000226 0.651905320157395\\2.52499999999607 0.654572686699921\\2.54999999999282 0.658065576936871\\2.575 0.661530686251933\\2.59999999997469 0.664985448106105\\2.62500000002107 0.667216476217143\\2.64999999998823 0.669895462979295\\2.67499999999833 0.672557424400875\\2.6999999999989 0.675234842685167\\2.72500000000001 0.677932291475736\\2.75000000000046 0.680659050710123\\2.77500000011202 0.683201448501821\\2.8 0.685708044714863\\2.82500000000028 0.688088365642656\\2.84999999999055 0.690571448381062\\2.87499999999654 0.693076214461211\\2.90000000000011 0.695575684929241\\2.92500000001402 0.698184293706798\\2.94999999995396 0.701235761040505\\2.97499999999574 0.704202908157281\\3.00000000000154 0.705980592056065\\};
}
\begin{axis}[%
width=6cm,
height=3.5cm,
unbounded coords=jump,
scale only axis,
xmin=1.25,
xmax=2,
ymin=-5,
ymax=20,
ylabel={$y$},
xlabel={$x$},
ytick = {0,5,10,15}
]
\def\spyviewersize{1.25cm}
\def\spyonclipreduce{0.5pt}
\def\spyfactorI{2}
\coordinate (spy-on 1) at (axis cs: 1.5,1);
\coordinate (spy-in 1) at (axis cs: 1.8,10);
\node[spy,minimum size={\spyviewersize/\spyfactorI}] (spy-on node 1) at (spy-on 1) {};
\node[spy,minimum size=\spyviewersize, fill = white] (spy-in node 1) at (spy-in 1) {};
\myplots
\begin{scope}
\clip (spy-in 1) circle (0.5*\spyviewersize-\spyonclipreduce);
\pgfmathsetmacro\sI{1/\spyfactorI}
\begin{scope}[shift={($\sI*(spy-in 1)-\sI*(spy-on 1)$)}]%,scale around={\spyfactorI:(spy-on 1)}]
\myplots
\end{scope}
\end{scope}
\end{axis}
\end{tikzpicture}
\end{document}
一个运行良好的示例代表了来自以下代码的稍微修改后的版本这里您也可以在下面找到它。尽管如此，轴环境并未使用，绘图也未通过一组点来定义。
% arara: pdflatex
% arara: clean: {files: [MWE_circle.aux, MWE_circle.bbl, MWE_circle.bcf, MWE_circle.blg, MWE_circle.log, MWE_circle.out, MWE_circle.run.xml, MWE_circle.toc, MWE_circle.ist, MWE_circle.slo, MWE_circle.glo, MWE_circle.synctex.gz]}
\documentclass[tikz,border=1mm]{standalone}
\usetikzlibrary{calc,positioning}
\begin{document}
\begin{tikzpicture}[
% Style for the spy nodes and the connection line
spy/.style={%
draw,red,
line width=1pt,
circle,inner sep=0pt,
},
]
% Parameters
%% size of the spy-in nodes
\def\spyviewersize{1.25cm}
%% (line width of the spy nodes) / 2
%% we need this for clipping later
\def\spyonclipreduce{0.5pt}
%% first zoom
%%% factor
\def\spyfactorI{2}
%%% spy on point
\coordinate (spy-on 1) at (2.44,1);% sould be on the curve
%%% spy in point
\coordinate (spy-in 1) at (5,1);
\def\spyfactorII{2}
%%% spy on point (last spy in point)
%% the graph/picture
\def\pic{
%%% grid
%\draw [ultra thin,step=0.2,gray] (0,0) grid (6,6);
%%% graph
\draw [line width=2pt,green!70!black] (0,0) parabola [bend at start] (6,6);
\draw [line width=2pt,red!70!black] (2,0) parabola [bend={(2.5,1)}] (3,0);
%%% axes
\draw [->] (0,0) -- (6,0) node [right] {$t$};
\draw [->] (0,0) -- (0,6) node [left] {$x$};
}
% draw the original picture
\pic
% first zoom
%% spy on node
\node[spy,minimum size={\spyviewersize/\spyfactorI}] (spy-on node 1) at (spy-on 1) {};
%% spy in node
\node[spy,minimum size=\spyviewersize, fill = white] (spy-in node 1) at (spy-in 1) {};
\begin{scope}
\clip (spy-in 1) circle (0.5*\spyviewersize-\spyonclipreduce);
\pgfmathsetmacro\sI{1/\spyfactorI}
\begin{scope}[
shift={($\sI*(spy-in 1)-\sI*(spy-on 1)$)},
scale around={\spyfactorI:(spy-on 1)}
]
\pic
\end{scope}
\end{scope}
%% connect the nodes
\draw [spy] (spy-on node 1) -- (spy-in node 1);
% % print the factors
% \node [above=0pt of spy-in node 1] {$\spyfactorI\times$};
% \pgfmathsetmacro\spyfactor{\spyfactorI*\spyfactorII}
\end{tikzpicture}
\end{document}
除此之外，是否可以仅裁剪图的“放大”部分并将其导出为单独的 .pdf？
谢谢！
答案1
以下是一些带有圆形节点的代码。它基于杰克的回答如果它不能解决您的所有问题，它可能仍然是比在评论中发布代码片段更好的讨论基础。
\documentclass[tikz,border=1mm]{standalone}
\usepackage{amsmath}
\usepackage{pgfplots}
\usetikzlibrary{calc,positioning}
\pgfplotsset{compat=1.17}
\begin{document}
\begin{tikzpicture}[cspy/.style={%
draw,red,
line width=1pt,
circle,inner sep=0pt,
},]
\begin{axis}[%
width=6cm,
height=3.5cm,
unbounded coords=jump,
scale only axis,
xmax=2,
ymin=-5,
ymax=20,
ylabel={$y$},
xlabel={$x$},
ytick = {0,5,10,15}
]
\newcommand*\myplots[1][]{
\addplot [
color=blue,
dashed
]
table[row sep=crcr]{
1.250000000054 0.218471486504557\\1.27500000012472 0.235880794037559\\1.30000000004985 0.253093675278193\\1.32499999988962 0.269996702493353\\1.34999999996296 0.28660169532495\\1.37500000003271 0.302803529131698\\1.4 0.318627316831094\\1.42500000000018 0.333967811176506\\1.44999999975398 0.348915976282584\\1.47499999999985 0.363393665978672\\1.50000000000007 0.377386190083728\\1.52499999999677 0.391065980885588\\1.54999999999987 0.404406696565785\\1.5749999999932 0.417357153126701\\1.60000000000001 0.429890180101467\\1.62500000007965 0.441495914781593\\1.64999999998047 0.453420186117445\\1.67500000000006 0.464885624062778\\1.70000000000013 0.475698022605379\\1.72499999999977 0.486001302461843\\1.75000000007258 0.49588760557761\\1.77500000001522 0.505406921339204\\1.79999999999992 0.514575948858101\\1.8249999999994 0.523580224222934\\1.84999999999966 0.532346980549898\\1.87499999998767 0.540884368439134\\1.90000000002483 0.549236128880721\\1.92499999997271 0.557390601810701\\1.94999999999657 0.565349329095157\\1.97499999999941 0.573100654346336\\1.99999999999993 0.580661122004988\\2.02499999998678 0.588035048696743\\2.0499999999709 0.595221272967935\\2.07499999999558 0.602215073143855\\2.09999999981776 0.609014392276178\\2.12500000001126 0.615634705868222\\2.14999999999957 0.622107376143054\\2.17499999994578 0.628535289209435\\2.19999999832383 0.63479954406909\\2.225 0.640975653060916\\2.24999999999955 0.647023272731091\\2.27499999999981 0.652900079435489\\2.29999999999833 0.658608487562972\\2.32499999999118 0.664162521737991\\2.34999999999773 0.669564611132752\\2.3750000000001 0.674786909878852\\2.40000000000024 0.679871708587361\\2.42499999998267 0.68481930558268\\2.44999999993369 0.689620895991369\\2.475 0.694300387671984\\2.50000000000226 0.698847019454327\\2.52499999999607 0.703231052229968\\2.54999999999282 0.707335949070966\\2.575 0.711299740037372\\2.59999999997469 0.715121564545835\\2.62500000002107 0.719030281788718\\2.64999999998823 0.722750679025289\\2.67499999999833 0.726355404984384\\2.6999999999989 0.729841563597055\\2.72500000000001 0.733213147420525\\2.75000000000046 0.736469697155365\\2.77500000011202 0.739681867953894\\2.8 0.742786117829059\\2.82500000000028 0.745831867778158\\2.84999999999055 0.748760245235199\\2.87499999999654 0.751587709302175\\2.90000000000011 0.754337713416536\\2.92500000001402 0.756957274828441\\2.94999999995396 0.759357524849041\\2.97499999999574 0.761687855897812\\3.00000000000154 0.764338301992918\\};
% \addlegendentry{po:pid};
\addplot [
color=green!50!black,
dashed
]
table[row sep=crcr]{
1.250000000054 0.590067068740046\\1.27500000012472 0.587559925194454\\1.30000000004985 0.586376714983635\\1.32499999988962 0.586069496190726\\1.34999999996296 0.586583764906821\\1.37500000003271 0.587586732327579\\1.4 0.589106686232638\\1.42500000000018 0.590799582313491\\1.44999999975398 0.592894933769734\\1.47499999999985 0.595115212158793\\1.50000000000007 0.597338496940835\\1.52499999999677 0.600163078036215\\1.54999999999987 0.603553183039573\\1.5749999999932 0.607355964366702\\1.60000000000001 0.611472392727962\\1.62500000007965 0.612640770551816\\1.64999999998047 0.618542970092304\\1.67500000000006 0.625478240488116\\1.70000000000013 0.63111283078678\\1.72499999999977 0.635924446858566\\1.75000000007258 0.640430875313834\\1.77500000001522 0.644633876853955\\1.79999999999992 0.647757322657836\\1.8249999999994 0.647552686193448\\1.84999999999966 0.647363620909126\\1.87499999998767 0.647117668558105\\1.90000000002483 0.646013166144435\\1.92499999997271 0.644422071010403\\1.94999999999657 0.642591297950079\\1.97499999999941 0.640866907916906\\1.99999999999993 0.639224831229371\\2.02499999998678 0.636685323281278\\2.0499999999709 0.633964341182746\\2.07499999999558 0.631446791852552\\2.09999999981776 0.628537387562625\\2.12500000001126 0.626107411465097\\2.14999999999957 0.624103000469\\2.17499999994578 0.62449136318196\\2.19999999832383 0.624449479840847\\2.225 0.6256877319412\\2.24999999999955 0.628088304645751\\2.27499999999981 0.630472877532383\\2.29999999999833 0.63283206246448\\2.32499999999118 0.635116015919806\\2.34999999999773 0.637322260692226\\2.3750000000001 0.640065236430338\\2.40000000000024 0.642534886174564\\2.42499999998267 0.644944092104574\\2.44999999993369 0.647313968075354\\2.475 0.649603381645786\\2.50000000000226 0.651905320157395\\2.52499999999607 0.654572686699921\\2.54999999999282 0.658065576936871\\2.575 0.661530686251933\\2.59999999997469 0.664985448106105\\2.62500000002107 0.667216476217143\\2.64999999998823 0.669895462979295\\2.67499999999833 0.672557424400875\\2.6999999999989 0.675234842685167\\2.72500000000001 0.677932291475736\\2.75000000000046 0.680659050710123\\2.77500000011202 0.683201448501821\\2.8 0.685708044714863\\2.82500000000028 0.688088365642656\\2.84999999999055 0.690571448381062\\2.87499999999654 0.693076214461211\\2.90000000000011 0.695575684929241\\2.92500000001402 0.698184293706798\\2.94999999995396 0.701235761040505\\2.97499999999574 0.704202908157281\\3.00000000000154 0.705980592056065\\};
}
% work with explicit rather symbolic coordinates because of
% pgfplots' surveying
\newcommand*\spypoint{1.4,0.5}
\newcommand*\spyviewer{1.6,10}
\newcommand*\spyfactorI{2}
\newcommand*\spyviewersize{1.25cm}
\newcommand*\spyonclipreduce{0.5pt}
\myplots
\node[cspy,minimum size={\spyviewersize/\spyfactorI}]
(spy-on node 1) at (\spypoint) {};
\node[cspy,minimum size=\spyviewersize, fill = white]
(spy-in node 1) at (\spyviewer) {};
\draw (spy-on node 1) edge (spy-in node 1);
\begin{scope}
\clip (\spyviewer) circle[radius=0.5*\spyviewersize-\spyonclipreduce];
\pgfmathparse{\spyfactorI^2/(\spyfactorI-1)}
\begin{scope}[scale around={\spyfactorI:($(\spyviewer)!\spyfactorI^2/(\spyfactorI^2-1)!(\spypoint)$)}]
\myplots
\end{scope}
\end{scope}
\end{axis}
\end{tikzpicture}%
\end{document}
答案2
在我“玩”了上面的脚本之后，我发现它并没有真正实现我想要的功能。
如果您考虑下面的示例，可以看到图的“放大”部分包含 5 条线，而“放大”部分仅包含 3 条线。基本上，我希望将较小圆圈的内容放大“spyfactorI”倍并显示在同一图上。
另一个问题涉及代码部分
{\spyfactorI:($(\spyviewer)!\spyfactorI^2/(\spyfactorI^2-1)!(\spypoint)$)}]
在哪里可以找到有关如何阅读此语法的更多信息？
谢谢你！
\documentclass[tikz,border=1mm]{standalone}
\usepackage{amsmath}
\usepackage{pgfplots}
\usetikzlibrary{calc,positioning}
\pgfplotsset{
every axis/.append style={
xticklabel style = {font=\tiny,/pgf/number format/fixed,/pgf/number format/precision=5},
yticklabel style = {font=\tiny,/pgf/number format/fixed,/pgf/number format/precision=5},
zticklabel style = {font=\tiny,/pgf/number format/fixed,/pgf/number format/precision=5},
xlabel style = {font=\tiny},
y label style={font=\tiny, at={(-.15,.5)},rotate=0,anchor=south, align = center},
zlabel style = {font=\tiny},
legend style = {font=\tiny},
legend style ={at={(.99,0.04)}, anchor=south east, legend cell align=left, align=left, draw=white!15!black, column sep = 0.25pt, row sep = 0pt, legend image post style={xscale=.5}, font = \tiny}
},
every axis plot/.append style={line width=0.5pt,line cap=round},
compat=newest,
}
\definecolor{mycolor1}{rgb}{0.10588,0.61961,0.46667}%
\definecolor{mycolor2}{rgb}{0.85098,0.37255,0.00784}%
\begin{document}
\begin{tikzpicture}[cspy/.style={%
draw,red,
line width=1pt,
circle,inner sep=0pt,
},]
\begin{axis}[%
width=6cm,
height=3.5cm,
unbounded coords=jump,
scale only axis,
xmin = 0.3,
xmax=0.6,
ymin=-2900,
ymax=2900,
ylabel={$y$},
xlabel={$x$},
]
\newcommand*\myplots[1][]{
\addplot [color=mycolor1, join = round]
table[row sep=crcr]{%
0 0\\
0.349370002746582 0\\
0.349860012531281 -1254.50256347656\\
0.355250000953674 2693.71899414063\\
0.356229990720749 2534.44995117188\\
0.358680009841919 798.401306152344\\
0.363580018281937 -2693.638671875\\
0.364560008049011 -2535.59692382813\\
0.367009997367859 -801.633911132813\\
0.371910005807877 2693.55395507813\\
0.372889995574951 2536.74047851563\\
0.375340014696121 804.866027832031\\
0.380239993333817 -2693.46533203125\\
0.381220012903214 -2537.8798828125\\
0.383670002222061 -808.097229003906\\
0.388570010662079 2693.3720703125\\
0.389550000429153 2539.015625\\
0.392000019550323 811.327087402344\\
0.396899998188019 -2693.2744140625\\
0.397880017757416 -2540.14672851563\\
0.400330007076263 -814.553894042969\\
0.405230015516281 2693.17309570313\\
0.406210005283356 2541.27416992188\\
0.408659994602203 817.780822753906\\
0.413560003042221 -2693.06689453125\\
0.414539992809296 -2542.3974609375\\
0.416990011930466 -821.007385253906\\
0.421889990568161 2692.95678710938\\
0.422870010137558 2543.51684570313\\
0.425319999456406 824.232543945313\\
0.430220007896423 -2692.8427734375\\
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% work with explicit rather symbolic coordinates because of
% pgfplots' surveying
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\end{document}
