一个tikz片段

Linux

一个片段

等有钱了换一个16g内存的笔记本就好了..

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\documentclass[convert={density=600,outext=.png}]{standalone}
\usepackage{tikz}
\usepackage{tikz-dimline}
\usetikzlibrary{calc}
\usetikzlibrary{patterns}
\usetikzlibrary{arrows.meta}
\begin{document}
    \begin{tikzpicture}[%
        xscale = 2,
        yscale = 2,
        line cap = round]

        % 定义矩形框的四个点
        \coordinate (a) at (-1, 0.5);
        \coordinate (b) at (1, 0.5);
        \coordinate (c) at (1, 0);
        \coordinate (d) at (-1, 0);

        % 顺次连接四个点，将底边设置为蓝色，标注热沉温度
        \draw[thick] (a) -- (b) -- (c) ;
        \draw[thick, blue] (c) -- (d);
        \draw[thick] (d) -- (a);
        \node (T0) at (0.8, 0.1) {\tiny \textcolor{blue}{$T_0$}};

        % 绘制上方边界
        \fill[pattern=north east lines] (a) rectangle ++(0.75,0.07);

        \fill[pattern=north east lines] (b) rectangle ++(-0.75,0.07);   

        % 绘制热流，标注Q
        \foreach \p in {-0.2, -0.1, 0, 0.1, 0.2}{
            \draw[red, -{Triangle[width=3,length=3]}, line width=1, fill=red] (\p, 0.65) -- (\p, 0.5);
        }
        \node (Q) at (0, 0.72) {\tiny \textcolor{red}{$Q$}};
        
        % 将热流箭头底部连接
        \coordinate (h_A) at (-0.2, 0.65);
        \coordinate (h_B) at (0.2, 0.65); 

        \draw[red, thick] (h_A) -- (h_B);

        % 绘制左侧坐标系，标注x，z
        \coordinate (origin) at (-0.95, 0.45);

        \coordinate (x) at (-0.75, 0.45);

        \coordinate (z) at (-0.95, 0.25);

        \draw[-stealth, semithick] (origin) -- (x);
        \draw[-stealth, semithick] (origin) -- (z);

        \node[anchor=north west, shift=({-0.1, 0})] (x_c) at (x) {\tiny x};
        \node[anchor=north west, shift=({-0.05, 0.1})] (z_c) at (z) {\tiny z};

        %标注w, t, wg
        \dimline[label style={below=0.1},
        extension start length=0,
        extension end length=0]{($(c) - (0,0.05)$)}{($(d) - (0,0.05)$)}{\tiny $w$};%

        \dimline[label style={above=0.1},
        extension start length=0,
        extension end length=0]{(1.05, 0.5)}{(1.05, 0)}{\tiny $t$};

        \dimline[label style={below=0.1},
        extension start length=0,
        extension end length=0]{($(h_A)-(0, 0.2)$)}{($(h_B)-(0, 0.2)$)}{\tiny $w_g$};

    \end{tikzpicture}
\end{document}

执行

1
pdflatex --shell-escape main.tex

输出