我正在尝试使用 tikz 绘制此图。不幸的是，我没有成功。我真正关心的是 4 个队列、一个分类器和一个多路复用器以及它们的箭头。所以我需要绘制这个简单的图形。
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{tikz}
\usepackage{amsmath}
\usepackage{graphicx}
\usepackage{amsthm}
\usetikzlibrary{chains,shapes.multipart}
\usetikzlibrary{shapes,calc}
\usetikzlibrary{automata,positioning}
\tikzset{
buffer/.style={
draw,
shape border rotate=270,
regular polygon,
regular polygon sides=3,
% fill=red,
node distance=2cm,
minimum height=4em
}
}
\begin{document}
\title{}
\date{\today}
\author{}
\maketitle
\newpage
\section{Simulation}
\begin{figure}
\centering
\begin{tikzpicture}[>=latex]
% the rectangle with vertical rules
\draw (0,0) -- ++(2cm,0) -- ++(0,-1.5cm) -- ++(-2cm,0);
\foreach \i in {1,...,4}
\draw (2cm-\i*10pt,0) -- +(0,-1.5cm);
% the circle
\draw (2.75,-0.75cm) circle [radius=0.75cm];
% the arrows and labels
\draw[->] (3.5,-0.75) -- +(20pt,0);
\draw[<-] (0,-0.75) -- +(-20pt,0) node[left] {$\lambda$};
\node at (2.75,-0.75cm) {$\mu$};
\end{tikzpicture}
\\
\vspace*{1mm}
\begin{tikzpicture}[>=latex]
% the rectangle with vertical rules
\draw (0,0) -- ++(2cm,0) -- ++(0,-1.5cm) -- ++(-2cm,0);
\foreach \i in {1,...,3}
\draw (2cm-\i*10pt,0) -- +(0,-1.5cm);
% the circle
\draw (2.75,-0.75cm) circle [radius=0.75cm];
% the arrows and labels
\draw[->] (3.5,-0.75) -- +(20pt,0);
\draw[<-] (0,-0.75) -- +(-20pt,0) node[left] {$\lambda$};
\node at (2.75,-0.75cm) {$\mu$};
\end{tikzpicture}
\\
\vspace*{1mm}
\begin{tikzpicture}[>=latex]
% the rectangle with vertical rules
\draw (0,0) -- ++(2cm,0) -- ++(0,-1.5cm) -- ++(-2cm,0);
\foreach \i in {1,...,1}
\draw (2cm-\i*10pt,0) -- +(0,-1.5cm);
% the circle
\draw (2.75,-0.75cm) circle [radius=0.75cm];
% the arrows and labels
\draw[->] (3.5,-0.75) -- +(20pt,0);
\draw[<-] (0,-0.75) -- +(-20pt,0) node[left] {$\lambda$};
\node at (2.75,-0.75cm) {$\mu$};
\end{tikzpicture}
\\
\vspace*{1mm}
\begin{tikzpicture}[>=latex]
% the rectangle with vertical rules
\draw (0,0) -- ++(2cm,0) -- ++(0,-1.5cm) -- ++(-2cm,0);
\foreach \i in {1,...,5}
\draw (2cm-\i*10pt,0) -- +(0,-1.5cm);
% the circle
\draw (2.75,-0.75cm) circle [radius=0.75cm];
% the arrows and labels
\draw[->] (3.5,-0.75) -- +(20pt,0);
\draw[<-] (0,-0.75) -- +(-20pt,0) node[left] {$\lambda$};
\node at (2.75,-0.75cm) (mu4) {$\mu$};
\end{tikzpicture}
\begin{tikzpicture}
\node[buffer,right of=mu4]{Test};
\end{tikzpicture}
\caption{The model represented as a queuing system.}
\label{fig:queue}
\end{figure}
\end{document}
如果您想要绘制一个更复杂/更漂亮的图形，您可以使用以下两个图形。
我非常感谢您的帮助！（评论、提示等）
答案1
第二个的起点：
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{chains,shapes.multipart}
\usetikzlibrary{shapes,calc}
\usetikzlibrary{automata,positioning}
\definecolor{myred}{RGB}{220,43,25}
\definecolor{mygreen}{RGB}{0,146,64}
\definecolor{myblue}{RGB}{0,143,224}
\tikzset{
myshape/.style={
rectangle split,
minimum height=1.5cm,
rectangle split horizontal,
rectangle split parts=8,
draw,
anchor=center,
},
mytri/.style={
draw,
shape=isosceles triangle,
isosceles triangle apex angle=60,
inner xsep=0.65cm
}
}
\begin{document}
\begin{tikzpicture}[>=latex]
% the shapes
\node[
myshape,
rectangle split part fill={white,white,white,white,myred}
]
(shape1) {};
\node[
myshape,
rectangle split part fill={white,white,white,white,white,white,mygreen},
below=of shape1
]
(shape2) {};
\node[
myshape,
rectangle split part fill={white,white,white,white,myblue},
below=of shape2
]
(shape3) {};
\node[mytri,left=of shape2]
(in) {};
\node[draw,circle,inner sep=0.6cm,right=of shape2]
(out) {};
\draw
(out.east) -- ++(15pt,0pt) coordinate (end);
% the arrows
\foreach \Ancla/\Color in {{north west}/myred,west/mygreen,{south west}/myblue}
{
\draw[line width=1.5pt,\Color,->] ([xshift=-30pt]in.\Ancla) -- ([xshift=-5pt]in.\Ancla);
}
\foreach \Valor/\Color in {1/myred,2/mygreen,3/myblue}
{
\draw[line width=1.5pt,->,\Color,shorten <= 4pt]
(in.east) -- (shape\Valor.west);
\draw[line width=1.5pt,\Color,shorten <= 4pt]
(shape\Valor.east) -- (out.west) ;
}
\foreach \Ancla/\Color in {{north west}/myred,west/mygreen,{south west}/myblue}
{
\draw[line width=1.5pt,\Color,->]
([xshift=5pt]end|-out.\Ancla) -- ([xshift=30pt]end|-out.\Ancla);
}
% the labels
\node[align=center,anchor=south east]
at ([yshift=10pt]in.north west)
{Classify \\ arrivals};
\foreach \Valor in {1,2,3}
{
\node[anchor=west,fill=white] at (shape\Valor.east) {$W_{\Valor}$};
}
\node[anchor=south]
at (out.north)
{Link};
\node[anchor=north]
at (end|-out.south)
{Departures};
\end{tikzpicture}
\end{document}
第三种可能性（这个和下面的，使用语法pic）：
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{chains,shapes.multipart}
\usetikzlibrary{shapes,calc,fit}
\usetikzlibrary{automata,positioning}
\tikzset{
queuei/.pic={
\draw[line width=1pt]
(0,0) -- ++(2cm,0) -- ++(0,-1cm) -- ++(-2cm,0);
\foreach \Val in {1,...,3}
\draw ([xshift=-\Val*10pt]2cm,0) -- ++(0,-1cm);
\node[above] at (1cm,0) {Queue $#1$ $w_{#1}$};
},
mytri/.style={
draw,
shape=isosceles triangle,
isosceles triangle apex angle=60,
inner xsep=0.65cm
}
}
\begin{document}
\begin{tikzpicture}[>=latex]
% the shapes
\path
(0,3cm) pic {queuei=1}
(0,1cm) pic {queuei=2}
(0,-3cm) pic {queuei=n};
\path
(1,4cm) coordinate (aux1)
(1,-4.5cm) coordinate (aux2)
(-0.5,0cm) coordinate (aux3)
(2.5,0cm) coordinate (aux4);
\node[draw,dashed,text width=2.5cm,fit={(aux1) (aux2) (aux3) (aux4)}] (dashed) {};
\node[draw,align=center,inner sep=10pt]
at (-4,0) (class)
{Packet \\ classifier};
\node[draw,align=center,mytri]
at (5.5,0) (multi)
{};
\node[anchor=south]
at ([yshift=10pt]multi.north)
{Multiplexer};
\node[draw,circle,double,double distance=2.5pt,inner sep=0.4cm,below=of class]
(control)
{};
\node[anchor=north,align=center]
at (control.south)
{Scheduling \\ control};
\node[draw,ellipse,dashed,minimum height=1.45cm]
at ([xshift=-10pt]multi.west) (robin)
{};
\node[align=center,anchor=east]
at ([yshift=-3.5pt]robin.west)
{Round-\\ robin};
%the arrows
\draw[->]
( $ (class.east)!0.8!(class.north east) $) --
++(10pt,0pt) |- node[above,pos=0.7] {Flow $1$} coordinate[pos=0.7] (aux5)
(0.2,2.5);
\draw[->]
( $ (class.east)!0.5!(class.north east) $) --
++(15pt,0pt) |- node[above,pos=0.67] {Flow $2$} coordinate (aux6)
(0.2,0.5);
\draw[->]
( $ (class.east)!0.8!(class.south east) $) --
++(15pt,0pt) |- node[above,pos=0.67] {Flow $n$} coordinate (aux7)
(0.2,-3.5);
\draw[->]
(aux5) to[out=0,in=120] ([yshift=-15pt]dashed.west|-aux5);
\draw[->]
(aux5|-aux6) to[out=0,in=120] ([yshift=-15pt]dashed.west|-aux6);
\draw[->]
(aux5|-aux7) to[out=0,in=120] ([yshift=-15pt]dashed.west|-aux7);
\draw[->]
(control.north) -- (class);
\draw[->]
([xshift=-3cm]class.west) --
node[anchor=south,align=center] {Main stream of \\ all packets flow}
(class.west);
\draw
(2,2.5) --
++(40pt,0pt) |-
( $ (multi.west)!0.8!(multi.north west) $);
\draw
(2,0.5) --
++(30pt,0pt) |-
( $ (multi.west)!0.5!(multi.north west) $);
\draw
(2,-3.5) --
++(40pt,0pt) |-
( $ (multi.west)!0.8!(multi.south west) $);
\draw[->]
(multi.east) -- node[above] {$s$} ([xshift=20pt]multi.east);
\end{tikzpicture}
\end{document}
第一个：
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{chains,shapes.multipart}
\usetikzlibrary{shapes,calc}
\usetikzlibrary{automata,positioning}
\tikzset{
queue/.pic={
\draw[line width=1pt]
(0,0) -- ++(2.75cm,0) -- ++(0,-1cm) -- ++(-2.75cm,0);
\foreach \Val in {1,...,#1}
\draw ([xshift=-\Val*10pt]2.75cm,0) -- ++(0,-1cm);
},
mytri/.style={
draw,
shape=isosceles triangle,
isosceles triangle apex angle=60,
inner xsep=0.65cm
}
}
\begin{document}
\begin{tikzpicture}[>=latex]
% the shapes
\path
(0,3cm) pic {queue=3}
(0,1cm) pic {queue=6}
(0,-1cm) pic {queue=4}
(0,-3cm) pic {queue=3};
\node[draw,inner sep=0.6cm]
(in) at (-2,0)
{};
\node[draw,mytri]
(out) at (4.5,0)
{};
% the arrows
\foreach \Pos in {-3.5,-1.5,0.5,2.5}
{
\draw[->] (in.east) -- (0,\Pos);
\draw[->] (2.76,\Pos) -- (out.west);
}
\draw[->]
([xshift=-1cm]in.west) -- (in.west);
\draw[->]
(out.east) -- ([xshift=1cm]out.east);
\end{tikzpicture}
\end{document}
