我正在尝试修复颜色条的数字数量，因为绘图的尺寸正在缩小，并且我希望为该绘图添加动画效果，因此必须使用固定的高度和宽度。我仍然希望 LaTeX 进行计算以最大化最终产品的尺寸，因此我仍然使用\textheight和\linewidth（以及其他）作为尺寸。
我在其他上下文中使用过/pgf/number format/cd.相同的语法，但在这种情况下，它会产生错误消息，与我没有明确设置的每个值有关。
预期效果是在颜色条中设置一定数量的数字，以便图形看起来不会“移动”。
（颜色条\cdot10^{-2}上方漂浮着一些奇怪的术语。我想摆脱它，我相信这将使尺寸\linewidth足以使图形具有\ik小于 240 的任何值的固定宽度。）
\documentclass{article}
\usepackage{pgfplots}
\usepackage{geometry}
\pgfplotsset{compat=newest}
%\usepackage{animate}
%\usetikzlibrary{intersections}
\newcommand{\dfa}{3}
\newcommand{\dfb}{9}
\newcommand{\ik}{240}
\begin{document}
\begin{tikzpicture}[
declare function={gamma(\z)=
2.506628274631*sqrt(1/\z)+0.20888568*(1/\z)^(1.5)+0.00870357*(1/\z)^(2.5)-(174.2106599*(1/\z)^(3.5))/25920-
(715.6423511*(1/\z)^(4.5))/1244160)*exp((-ln(1/\z)-1)*\z;},
declare function={beta(\x,\y)=(gamma(\x) * gamma(\y)) / (gamma(\x + \y));},
declare function={threedf(\value)= (x^(x/2)*y^(y/2)*\value^(y/2 -1)*(x + y*\value)^(-.5*x -.5*y))/beta(y/2,x/2);},
]
\begin{axis}[
colormap={mycolormap}{color(0cm)=(white); color(1cm)=(blue!75!red)},
colormap name=mycolormap,
% width=.99\linewidth-\marginparwidth-2\tabcolsep,
height=.49\textheight,
view={150}{45},
enlargelimits=false,
grid=major,
domain=.5:10.5,
y domain=.5:10.5,
xmin = -.5, xmax = 11.5,
ymin = -.5, ymax = 11.5,
zmin = 0, zmax = 1,
samples=11,
xlabel=$df_1$,
ylabel=$df_2$,
zlabel=$F$,
colorbar,
colorbar style={
at={(1.05,0)},
anchor=south west,
height=0.25*\pgfkeysvalueof{/pgfplots/parent axis height},
% title={$P(x_1,x_2)$},
every tick label/.append style =
{/pgf/number format/.cd,
precision = 2,
fixed zerofill,
fixed, use comma,
},}
]
\pgfmathsetmacro{\result}{((\ik/53+.6)^2+(ln(\ik/53+.6)^2+1.5))/5};
%\path[name path=line] (axis cs:\dfa,\dfb,0) -- (axis cs:\dfa,\dfb,1);
\addplot3 [surf] {threedf(\result)};
\addlegendentry {$x = \pgfmathprintnumber[fixed, precision=3]{\result}$};
\end{axis}
\end{tikzpicture}
\end{document}
答案1
设置完所有number format样式后，您需要将密钥目录重置为您调用时所在的目录/pgf/number format/.cd，在本例中为/tikz/.cd：
\documentclass{article}
\usepackage{pgfplots}
\usepackage{geometry}
\pgfplotsset{compat=newest}
%\usepackage{animate}
%\usetikzlibrary{intersections}
\newcommand{\dfa}{3}
\newcommand{\dfb}{9}
\newcommand{\ik}{240}
\begin{document}
\begin{tikzpicture}[
declare function={gamma(\z)=
2.506628274631*sqrt(1/\z)+0.20888568*(1/\z)^(1.5)+0.00870357*(1/\z)^(2.5)-(174.2106599*(1/\z)^(3.5))/25920-
(715.6423511*(1/\z)^(4.5))/1244160)*exp((-ln(1/\z)-1)*\z;},
declare function={beta(\x,\y)=(gamma(\x) * gamma(\y)) / (gamma(\x + \y));},
declare function={threedf(\value)= (x^(x/2)*y^(y/2)*\value^(y/2 -1)*(x + y*\value)^(-.5*x -.5*y))/beta(y/2,x/2);},
]
\begin{axis}[
colormap={mycolormap}{color(0cm)=(white); color(1cm)=(blue!75!red)},
colormap name=mycolormap,
% width=.99\linewidth-\marginparwidth-2\tabcolsep,
height=.49\textheight,
view={150}{45},
enlargelimits=false,
grid=major,
domain=.5:10.5,
y domain=.5:10.5,
xmin = -.5, xmax = 11.5,
ymin = -.5, ymax = 11.5,
zmin = 0, zmax = 1,
samples=11,
xlabel=$df_1$,
ylabel=$df_2$,
zlabel=$F$,
colorbar,
colorbar style={
at={(1.05,0)},
anchor=south west,
height=0.25*\pgfkeysvalueof{/pgfplots/parent axis height},
% title={$P(x_1,x_2)$},
every tick label/.append style =
{/pgf/number format/.cd,
precision = 2,
fixed zerofill,
fixed, use comma,
/tikz/.cd
}
}
]
\pgfmathsetmacro{\result}{((\ik/53+.6)^2+(ln(\ik/53+.6)^2+1.5))/5};
%\path[name path=line] (axis cs:\dfa,\dfb,0) -- (axis cs:\dfa,\dfb,1);
\addplot3 [surf] {threedf(\result)};
\addlegendentry {$x = \pgfmathprintnumber[fixed, precision=3]{\result}$};
\end{axis}
\end{tikzpicture}
\end{document}