how to specify the position of a node

Question

\documentclass{article}
\usepackage{tikz}
\usepackage{ctex}
\usetikzlibrary{shapes.geometric,arrows}
\begin{document}

\tikzstyle{input}=[diamond, minimum width=3cm, minimum height=1cm, text centered, draw=black, fill=red!70]
\tikzstyle{process}=[rectangle, rounded corners, draw=green, fill=purple!30, text centered]
\tikzstyle{output}=[diamond, minimum width=3cm, minimum height=1cm, text centered, draw=black,fill = green!45]

\tikzstyle{arrow}=[thick,->,>=stealth]
\begin{tikzpicture}[node distance=3cm]
\node(sta)[input]{一对一雅思精品课程};
\node(pro1)[process, below of=sta]{雅思口语提高班};
\end{tikzpicture}
\end{document}

I know how to use yshift or xshift, but I am looking for something easier that allow me to specify the position of a node in its relaionship with another node. I remember seeing it somewhere and something along the line of"below of=15cm sta" but I cannot find it.

You are looking for the positioning library, as e.g. described in section 3.8 Placing Nodes Using Relative Placement of pgfmanual v3.1.5. With this library you can position nodes via \node[below=2cm of A](B){...}; provided you have a node A. Note also that \tikzstyle is deprecated. — , May 28 '20 at 03:19

score 1 · Accepted Answer · answered May 28 '20 at 03:35

In continuation of the comments by @Schrödinger's cat above an example of a flow chart similar to what you require (probably) taken from this site is reproduced belo and will clarify the positioning aspects hopefully-- in case not, please revert with your query

\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric, arrows,positioning}

\tikzset{ 
    process/.style={
        rectangle, 
        minimum width=2cm, 
        minimum height=1cm, 
        align=center, 
        text width=2cm,
        draw
    },
    connector/.style={
        circle, 
        minimum width=1cm, 
        minimum height=0.5cm, 
        align=center, 
        text width=1cm, 
        draw
    },
    arrow/.style={
        thick,
        ->,
        >=stealth
    }
}  

\begin{document}

    \begin{tikzpicture}[
    node distance=1cm and 2cm
    ]
    \node (p0) [] {foo(K)};
    \node (p1) [process, below = 0.2cm of p0, text width=3cm] {search for key K};
    \node (p2) [process, below =of p1, text width=3.5cm] {Create key K for insertion};
    \node (p3) [process, below =of p2,text width=3.5cm] {Attempt to insert};
    \node (retF) [process, right =of p1,, text width=1cm, minimum width=1cm] {return false};
    \node (p4) [process, below =of p3, text width=3cm] {check if flag set};
    \node (retT) [process, right =of p3,text width=1cm, minimum width=1cm] {return true};
    \node (h1) [connector, below =of p4] {bar()};

    \draw [arrow] (p1) -- node[anchor=west] {K not found} (p2);
    \draw [arrow] (p1) -- node[anchor=south] {K found} (retF);
    \draw [arrow] (p2) -- node {} (p3);
    \draw [arrow] (p3) -- node[anchor=east] {failed} (p4);
    \draw [arrow] (p3) -- node[anchor=south] {successful} (retT);
    \draw [arrow] (p4) -- node[anchor=west] {Yes} (h1);
    \draw [arrow] (p4.west) -- ++(-1,0) node[anchor=south,pos=0.5] {No} |- (p1.west);
    \draw [arrow] (h1.west) -- ++(-2.5,0) |- node[anchor=south] {} (p1.west);
    \end{tikzpicture}

\end{document}

This is an example in which actually other tools like chains or matrix may be superior to plain positioning. Plus this example seems to be literally copied from here. — , May 28 '20 at 03:46

how to specify the position of a node

1 Answers1