我想编辑我的流程图，因为它有错误。我想更改此行
% added sloped, above to the node options to rotate it
\path [line] (labeled.east) -- ++(7mm,0mm) |- node [pos=0.3,sloped,above] {FALSE} (step2); "
这样指向的箭头/节点(step2)就会指向(geq)决策之前的箭头/节点。就这样。谢谢！
\documentclass[12pt,letterpaper]{article}
\usepackage[margin=1in]{geometry}
\usepackage[latin1]{inputenc}
\usepackage{tikz,amsmath,amssymb,amsthm}
\usetikzlibrary{shapes,arrows.meta,positioning}
\definecolor{clr1}{RGB}{179,235,205}
\definecolor{clr2}{RGB}{254,217,166}
\definecolor{clr3}{RGB}{222,203,228}
\definecolor{clr4}{RGB}{251,180,174}
\definecolor{clr5}{RGB}{204,235,197}
\definecolor{clr6}{RGB}{255,255,179}
\definecolor{clr7}{RGB}{229,216,189}
% Define block
\tikzset{
decision/.style={diamond, draw, fill=clr1,
text width=5em, text badly centered, inner sep=1pt},
block1/.style={rectangle, draw, fill=clr2,
text width=5em, text centered, rounded corners, minimum height=5em},
block2/.style={rectangle, draw, fill=clr3,
text width=10em, text centered, minimum height=6em},
block3/.style={rectangle, draw, fill=clr4,
text width=13em, text centered, minimum height=5em},
line/.style={draw, thick, -Latex},
cloud1/.style={draw, ellipse,fill=clr5,
minimum height=5em},
cloud2/.style={draw, ellipse,fill=clr6,
minimum height=5em, text width=7em},
block4/.style={rectangle, draw, fill=clr7,
text width=12em, text centered, minimum height=8em}
}
\begin{document}
\pagestyle{empty}
\begin{tikzpicture}[node distance = 7mm, auto]
% Place nodes
\node [cloud1] (input) {INPUT};
\node [cloud2, below =of input] (mn) {$L(m,1),W(3,n)$ where
$m,n \in \mathbb{N}$};
\node [block1, above left=1cm and 2cm of mn] (step1) {STEP 1:};
\node [block2, left=2.3cm of step1] (vertex) {$V(W(3,n)) = \{v\} \cup \
{v_{(i,j)} |
i \in \{1,2,3,\ldots,n\} , j \in \{1,2,3\} \}$};
\node [block2, below=of vertex] (edge) {$E(W(3,n))= \{ vv_{(i,j)} | i \in \{1,2,\ldots,n\} ,
j \in \{1,2,3\}\} \cup \ {v_{(i,j)}v_{(i,j+1)} |
i \in \{1,2,\ldots,n\} ,
j \in \{1,2,\}\} \cup \{ v_{(i,1)}v_{(i,3)} |
i \in \{1,2,\ldots,n\}\}$};
\node [block1, at={(edge-|step1)}] (step2) {STEP 2:};
\node [block3, below=1.3cm of step2] (v) {Let $\ell : V(W(3,n)) \longrightarrow \{0,1,2,\ldots\}$ where $\ell(v_0)=0$};
\node [decision,
below left=1.5cm and 2.5cm of v] (geq) {$m\geq n$};
\node [block3, at={(geq-| v)}] (1) {$\ell(V_{(i,j)})=jm+(i-1), i \in \{1,2,\ldots n\}, j \in \{1,2,3\}$};
\node [decision, below=of geq] (lessthan) {$m<n$};
\node [block3, at={(lessthan -| 1)}] (2) {$\ell(v_{i,j})=jm+(j-1)(n-m)+(i-1), i \in \{1,2,3,\ldots,n\}$ and $j \in \{1,2,3\}$};
\node [cloud2,
right=-5mm of 2, yshift=-3.5cm] (labeled) {Each vertex has label.};
\node [cloud1, left=2cm of labeled] (output) {OUTPUT};
\node [block4, left=of output] (optimal) {Optimal $L(m,1)$-labeling for triangular windmill graph $(W(3,n))$.};
% Draw edges
\path [line] (input) -- (mn);
\path [line] (mn) -| (step1);
\path [line] (edge) -- (step2);
\path [line] (step1) -- (vertex);
\path [line] (vertex) -- (edge);
\path [line] (step2) -- (step2 |- v.north);
% added [pos=0.25] for the node
% in a -| path, midway/pos=0.5 is at the corner, so 0.25 is halfway to the corner
\path [line] (v) -| node [pos=0.25] {and} (geq);
\path [line] (geq) -- node {TRUE} (1);
\path [line] (geq) -- node {FALSE} (lessthan);
\path [line] (lessthan) -- node {TRUE}(2);
\path [line] (1) -| node [near start] {TRUE} (labeled);
\path [line] (2) -| node [near start] {TRUE} (labeled);
\path [line] (labeled) -- node {TRUE} (output);
\path [line] (output) -- (optimal);
% added sloped, above to the node options to rotate it
\path [line] (labeled.east) -- ++(7mm,0mm) |- node [pos=0.3,sloped,above] {FALSE} (step2);
% place node relative to the current bounding box
\node [above=3ex, font=\bfseries\Large] at (current bounding box.north) {FLOWCHART};
\end{tikzpicture}
\end{document}
答案1
为了修复代码，{我用 替换了两个。更准确地说，我修复了43 行末尾的 和48 行的 。我还实施了 Torbjørn T. 的评论。\{\\ {
\documentclass[12pt,letterpaper]{article}
\usepackage[margin=1in]{geometry}
\usepackage[latin1]{inputenc}
\usepackage{tikz,amsmath,amssymb,amsthm}
\usetikzlibrary{shapes,arrows.meta,positioning}
\definecolor{clr1}{RGB}{179,235,205}
\definecolor{clr2}{RGB}{254,217,166}
\definecolor{clr3}{RGB}{222,203,228}
\definecolor{clr4}{RGB}{251,180,174}
\definecolor{clr5}{RGB}{204,235,197}
\definecolor{clr6}{RGB}{255,255,179}
\definecolor{clr7}{RGB}{229,216,189}
% Define block
\tikzset{
decision/.style={diamond, draw, fill=clr1,
text width=5em, text badly centered, inner sep=1pt},
block1/.style={rectangle, draw, fill=clr2,
text width=5em, text centered, rounded corners, minimum height=5em},
block2/.style={rectangle, draw, fill=clr3,
text width=10em, text centered, minimum height=6em},
block3/.style={rectangle, draw, fill=clr4,
text width=13em, text centered, minimum height=5em},
line/.style={draw, thick, -Latex},
cloud1/.style={draw, ellipse,fill=clr5,
minimum height=5em},
cloud2/.style={draw, ellipse,fill=clr6,
minimum height=5em, text width=7em},
block4/.style={rectangle, draw, fill=clr7,
text width=12em, text centered, minimum height=8em}
}
\begin{document}
\pagestyle{empty}
\begin{tikzpicture}[node distance = 7mm, auto]
% Place nodes
\node [cloud1] (input) {INPUT};
\node [cloud2, below =of input] (mn) {$L(m,1),W(3,n)$ where
$m,n \in \mathbb{N}$};
\node [block1, above left=1cm and 2cm of mn] (step1) {STEP 1:};
\node [block2, left=2.3cm of step1] (vertex) {$V(W(3,n)) = \{v\} \cup
\{v_{(i,j)} |
i \in \{1,2,3,\ldots,n\} , j \in \{1,2,3\} \}$};
\node [block2, below=of vertex] (edge) {$E(W(3,n))= \{ vv_{(i,j)} | i
\in \{1,2,\ldots,n\} , j \in
\{1,2,3\}\} \cup
\{v_{(i,j)}v_{(i,j+1)} | i
\in \{1,2,\ldots,n\} , j \in
\{1,2,\}\} \cup \{
v_{(i,1)}v_{(i,3)} | i \in
\{1,2,\ldots,n\}\}$};
\node [block1, at={(edge-|step1)}] (step2) {STEP 2:};
\node [block3, below=1.3cm of step2] (v) {Let $\ell : V(W(3,n)) \longrightarrow \{0,1,2,\ldots\}$ where $\ell(v_0)=0$};
\node [decision,
below left=1.5cm and 2.5cm of v] (geq) {$m\geq n$};
\node [block3, at={(geq-| v)}] (1) {$\ell(V_{(i,j)})=jm+(i-1), i \in \{1,2,\ldots n\}, j \in \{1,2,3\}$};
\node [decision, below=of geq] (lessthan) {$m<n$};
\node [block3, at={(lessthan -| 1)}] (2) {$\ell(v_{i,j})=jm+(j-1)(n-m)+(i-1), i \in \{1,2,3,\ldots,n\}$ and $j \in \{1,2,3\}$};
\node [cloud2,
right=-5mm of 2, yshift=-3.5cm] (labeled) {Each vertex has label.};
\node [cloud1, left=2cm of labeled] (output) {OUTPUT};
\node [block4, left=of output] (optimal) {Optimal $L(m,1)$-labeling for triangular windmill graph $(W(3,n))$.};
% Draw edges
\path [line] (input) -- (mn);
\path [line] (mn) -| (step1);
\path [line] (edge) -- (step2);
\path [line] (step1) -- (vertex);
\path [line] (vertex) -- (edge);
\path [line] (step2) -- (step2 |- v.north);
% added [pos=0.25] for the node
% in a -| path, midway/pos=0.5 is at the corner, so 0.25 is halfway to the corner
\path [line] (v) -| node [pos=0.25] {and} (geq);
\path [line] (geq) -- node {TRUE} (1);
\path [line] (geq) -- node {FALSE} (lessthan);
\path [line] (lessthan) -- node {TRUE}(2);
\path [line] (1) -| node [near start] {TRUE} (labeled);
\path [line] (2) -| node [near start] {TRUE} (labeled);
\path [line] (labeled) -- node {TRUE} (output);
\path [line] (output) -- (optimal);
% added sloped, above to the node options to rotate it
%\path [line] (labeled.east) -- ++(7mm,0mm) |- node [pos=0.3,sloped,above] {FALSE} (step2);
\path [line] (labeled.east) -- ++(7mm,0mm) |- node [pos=0.3,sloped,above] {FALSE} (v);
% place node relative to the current bounding box
\node [above=3ex, font=\bfseries\Large] at (current bounding box.north) {FLOWCHART};
\end{tikzpicture}
\end{document}