无需下载 pdf 即可在 latex 中绘图

Question

我正在尝试用乳胶编写查询并附加此图像。我单独做了，下载了 pdf 文件以保留其分辨率并将其附加到我的 latex 文件中。有没有办法直接做到这一点而不必使用此方法？也就是说，我想在 latex 代码中完成所有操作，而无需下载任何东西。可能吗？

我贴一个代码来举例说明：

\documentclass{article}
\usepackage{graphicx}

\begin{document}
The universe is immense and it seems to be homogeneous, 
in a large scale, everywhere we look at.

\begin{figure}[h]
    \centering
    \includegraphics[scale=0.7]{tubularflow.pdf}
\end{figure}

text
\end{document}

Answer 1

@David Carlisle 的评论解决了您的问题。如果您希望在问题中包含来自链接的图像代码，您可以按照以下方式操作：

\documentclass[12pt]{article}

%---------------------------------------------------------------%
% part preamble needed for your image
\usepackage{amssymb}
\usepackage{tikz}
%\usepackage{amsfonts}
\definecolor{mycolor}{rgb}{0, 153, 216}

% Style to set camera angle, like PGFPlots `view` style
\tikzset{viewport/.style 2 args={
    x={({cos(-#1)*1cm},{sin(-#1)*sin(#2)*1cm})},
    y={({-sin(-#1)*1cm},{cos(-#1)*sin(#2)*1cm})},
    z={(0,{cos(#2)*1cm})}
}}

% Convert from spherical to cartesian coordinates
\newcommand{\ToXYZ}[2]{
    {sin(#1)*cos(#2)}, % X coordinate
    {cos(#1)*cos(#2)}, % Y coordinate
    {sin(#2)}          % Z (vertical) coordinate
}
%---------------------------------------------------------------%
% other part preamble needed for your document 

\usepackage{lipsum}

\begin{document}
\lipsum[66]

    \begin{figure}[ht]
    \centering
% code for image
\def\RotationX{-20}
\def\RotationY{30}
\begin{tikzpicture}[scale=4]

    \path[ball color= mycolor, draw] (0,0) circle (1);

    \begin{scope}[viewport={\RotationX}{\RotationY}]

        \draw[variable=\t, smooth, line width=0.2pt]
            plot[domain=90-\RotationY:-90-\RotationY, rotate around y=-20] (\ToXYZ{0}{\t})
            plot[domain=90-\RotationX:-90-\RotationX, rotate around y=110] (\ToXYZ{\t}{0});

        \draw[densely dashed, variable=\t, smooth, line width=0.5pt, opacity=0.3]
            plot[domain=90-\RotationY:270-\RotationY, rotate around y=-20] (\ToXYZ{0}{\t})
            plot[domain=90-\RotationX:270-\RotationX, rotate around y=110] (\ToXYZ{\t}{0});

        \draw[densely dashed, variable=\t, smooth]
            plot[domain=-160:-20] (\ToXYZ{15*sin(\t)}{15*cos(\t)});

        \fill[color=blue!80!white, opacity=1, variable=\t, smooth]
            plot[domain=-21:201] (\ToXYZ{25*sin(\t)}{25*cos(\t)}) --
            plot[domain=201:-20] (\ToXYZ{15*sin(\t)}{15*cos(\t)}) -- cycle;

        \draw[black, variable=\t, smooth, domain=0:360, line width=0.4pt]
            plot[domain=-21:201] (\ToXYZ{25*sin(\t)}{25*cos(\t)})
            plot[domain=-21:201] (\ToXYZ{15*sin(\t)}{15*cos(\t)});

        \draw[black, variable=\t, smooth, domain=0:360, line width=0.4pt]
            plot[domain=55-\RotationY:45-\RotationY, rotate around y=-20] (\ToXYZ{0}{\t})
            plot[domain=5-\RotationX:-5-\RotationX, rotate around y=110] (\ToXYZ{\t}{0});

        \node[circle, fill, inner sep=1pt] at (\ToXYZ{0}{0}) {};

        \node[circle, fill, inner sep=1pt] at (\ToXYZ{15*sin(140)}{15*cos(140)}) {};

        \node[] at (1,0.5,0.5) {\Large{$\mathbb S^2$}};
        \node[] at (-0.14,0.1,0.6) {\Large{$\gamma$}};
        \node[] at (-0.2,0.1,0.4) {\Large{$p$}};
    \end{scope}
\end{tikzpicture}
\caption{Unverse ...}
\label{fig:universe}
\end{figure}

\lipsum[66]
\end{document}