问题
箭头-|-与左侧的另一个节点相交。我希望它指向东，然后指向北，然后指向西。我如何更改此箭头的方向？我查看了蒂克兹和Tikz-cd手册，但我一直在努力解决这个问题。
请注意，箭头起始于store: d并终止于[for] search new (x)。箭头如下所示：
代码
问题出在 的下\graph [use existing nodes]。的宏位于 下，下面是我隔离问题的代码的简化版本：nM -> [dashed, vh path] nK; nN2 -> [dashed, -|-] nF;\matrix[row sep=5mm, column sep=5mm]-|-\begin{tikzpicture}-|-/.style=...
%---[ load packages ] - document format
\documentclass[10pt]{extarticle}
\usepackage{extsizes}
\usepackage[utf8]{inputenc}
\usepackage{blindtext}
%---[ load packages ] - page format
\usepackage{geometry}
\usepackage{titling, titlesec, fancyhdr}
\geometry{
a4paper,
total={170mm,257mm},
textwidth=420pt,
top=38mm,
bottom=38mm,
}
%---[ load packages ] - graphics presentation
\usepackage{tikz, pgf}
\usetikzlibrary {positioning, graphs, arrows.meta}
\tikzset{every picture/.style={/utils/exec={\ttfamily}}}
%---[ document ]
\begin{document}
%---[D-graphics] block
% -------------------------------------------------------------------------------------------[S]
\begin{figure}[H]
\begin{center}
\begin{tikzpicture}[nonterminal/.style={rectangle, minimum size=4mm, rounded corners=1mm, fill=grey!10},
>={Stealth[round]}, thick, black!90,
every new ->/.style={shorten >=1pt},
bend left/.style={to path={-| (\tikztotarget)}},
bend right/.style={to path={|- (\tikztotarget)}},
hv path/.style={to path={-| (\tikztotarget)}},
vh path/.style={to path={|- (\tikztotarget)}},
-|-/.style={to path={
(\tikztostart.east) -| ($(100.east)+(0.5,0)$) |- (\tikztotarget.east)}},
graphs/every graph/.style={edges=rounded corners}
],
\matrix[row sep=5mm, column sep=5mm] {
% row 01
\node (nA) [anchor=west, nonterminal, fill=black!90, text=white, minimum width=2cm] {begin}; & & & & \\
% row 02
\node (nB) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {instruct}; & & & & \\
% row 03
\node (nC) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {start}; & & & & \\
% row 04
& \node (nD) [anchor=west, nonterminal] {inputs}; & & & \\
% row 05
& \node (nE) [anchor=west, nonterminal] {$d = sum - x$}; & & & \\
% row 06
& \node (nF) [anchor=west, nonterminal] {[for] search new (x)}; & & & \\
% row 07
& \node (nG) [anchor=west, nonterminal] {[for] search old (y)}; & & & \\
% row 08
& & \node (nH) [anchor=west, nonterminal, fill=blue!30!green!35] {[if]}; & & \\
% row 09
& & & \node (nI) [anchor=west, nonterminal] {$x \text{!=} y$}; & \\
% row 10
& & & \node (nJ) [anchor=west, nonterminal] {$x \text{==} y$}; & \node (nJ2) [anchor=west, nonterminal] {$d = sum - y$}; \\
% row 11
& \node (nK) [anchor=west, nonterminal] {[for] search old (z)}; & & & \\
% row 12
& & \node (nL) [anchor=west, nonterminal, fill=blue!30!green!35] {[if]}; & & \\
% row 13
& & & \node (nM) [anchor=west, nonterminal] {$z \text{!=} d$}; & \\
% row 14
& & & \node (nN) [anchor=west, nonterminal] {$z \text{==} d$}; & \node (nN2) [anchor=west, nonterminal] {store: $d$}; \\
% row 15
\node (nO) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {print}; & & & & \\
% row 16
\node (nP) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {update}; & & & & \\
% row 17
& \node (nQ) [anchor=west, nonterminal] {[while] user input y/n}; & & & \\
% row 18
& & \node (nR) [anchor=west, nonterminal] {yes}; & \node (nR2) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {start}; & \node (nR3) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {print}; \\
% row 19
& & \node (nS) [anchor=west, nonterminal] {no}; & \node (nS2) [anchor=west, nonterminal] {terminate}; & \\
% row 20
\node (nT) [anchor=west, nonterminal, fill=black!90, text=white, minimum width=2cm] {end}; & & & & \\
};
\graph [use existing nodes] {
% begin
nA -> nB;
% instruct function
nB -> nC;
% start function
nC -> [distance=2mm, vh path] {nD, nE, nF, nG, nK}; nF -> nG -> nK;
nG -> [vh path] nH;
nH -> [distance=2mm, vh path] {nI, nJ}; nJ -> nJ2;
nI -> [dashed, vh path] nG;
nK -> [vh path] nL;
nL -> [distance=2mm, vh path] {nM, nN}; nN -> nN2;
nM -> [dashed, vh path] nK; nN2 -> [dashed, -|-] nF;
% print function
nC -> nO;
% update function
nO -> nP;
nP -> [vh path] nQ;
nQ -> [distance=2mm, vh path] {nR, nS}; nR -> nR2 -> nR3; nS -> nS2;
nR3 -> [dashed, vh path] nQ;
% end
nP -> nT;
};
\end{tikzpicture}
\end{center}
\end{figure}
% -------------------------------------------------------------------------------------------[E]
\end{document}
答案1
删除100.east并修改-|- style——只使用一条延伸线east，然后0.5,0向上连接目标似乎就足够了——还删除了H图中的选项——因为灰色也造成了错误，因此black!10改用
\documentclass[10pt]{extarticle}
\usepackage{extsizes}
\usepackage[utf8]{inputenc}
\usepackage{blindtext}
%---[ load packages ] - page format
\usepackage{geometry}
\usepackage{titling, titlesec, fancyhdr}
\geometry{
a4paper,
total={170mm,257mm},
textwidth=420pt,
top=38mm,
bottom=38mm,
}
%---[ load packages ] - graphics presentation
\usepackage{tikz, pgf}
\usetikzlibrary {positioning, graphs, arrows.meta, calc}
\tikzset{every picture/.style={/utils/exec={\ttfamily}}}
%---[ document ]
\begin{document}
%---[D-graphics] block
% -------------------------------------------------------------------------------------------[S]
\begin{figure}
\begin{center}
\begin{tikzpicture}[nonterminal/.style={rectangle, minimum size=4mm, rounded corners=1mm, fill=black!10},
>={Stealth[round]}, thick, black!90,
every new ->/.style={shorten >=1pt},
bend left/.style={to path={-| (\tikztotarget)}},
bend right/.style={to path={|- (\tikztotarget)}},
hv path/.style={to path={-| (\tikztotarget)}},
vh path/.style={to path={|- (\tikztotarget)}},
-|-/.style={to path={
(\tikztostart.east)-- ++(0.5,0) |- (\tikztotarget.east)}},
graphs/every graph/.style={edges=rounded corners}
],
\matrix[row sep=5mm, column sep=5mm] {
% row 01
\node (nA) [anchor=west, nonterminal, fill=black!90, text=white, minimum width=2cm] {begin}; & & & & \\
% row 02
\node (nB) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {instruct}; & & & & \\
% row 03
\node (nC) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {start}; & & & & \\
% row 04
& \node (nD) [anchor=west, nonterminal] {inputs}; & & & \\
% row 05
& \node (nE) [anchor=west, nonterminal] {$d = sum - x$}; & & & \\
% row 06
& \node (nF) [anchor=west, nonterminal] {[for] search new (x)}; & & & \\
% row 07
& \node (nG) [anchor=west, nonterminal] {[for] search old (y)}; & & & \\
% row 08
& & \node (nH) [anchor=west, nonterminal, fill=blue!30!green!35] {[if]}; & & \\
% row 09
& & & \node (nI) [anchor=west, nonterminal] {$x$}; & \\
% row 10
& & & \node (nJ) [anchor=west, nonterminal] {$x $}; & \node (nJ2) [anchor=west, nonterminal] {$d = sum - y$}; \\
% row 11
& \node (nK) [anchor=west, nonterminal] {[for] search old (z)}; & & & \\
% row 12
& & \node (nL) [anchor=west, nonterminal, fill=blue!30!green!35] {[if]}; & & \\
% row 13
& & & \node (nM) [anchor=west, nonterminal] {$z$}; & \\
% row 14
& & & \node (nN) [anchor=west, nonterminal] {$z$}; & \node (nN2) [anchor=west, nonterminal] {store: $d$}; \\
% row 15
\node (nO) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {print}; & & & & \\
% row 16
\node (nP) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {update}; & & & & \\
% row 17
& \node (nQ) [anchor=west, nonterminal] {[while] user input y/n}; & & & \\
% row 18
& & \node (nR) [anchor=west, nonterminal] {yes}; & \node (nR2) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {start}; & \node (nR3) [anchor=west, nonterminal, minimum width=2cm, draw=black!90] {print}; \\
% row 19
& & \node (nS) [anchor=west, nonterminal] {no}; & \node (nS2) [anchor=west, nonterminal] {terminate}; & \\
% row 20
\node (nT) [anchor=west, nonterminal, fill=black!90, text=white, minimum width=2cm] {end}; & & & & \\
};
\graph [use existing nodes] {
% begin
nA -> nB;
% instruct function
nB -> nC;
% start function
nC -> [distance=2mm, vh path] {nD, nE, nF, nG, nK}; nF -> nG -> nK;
nG -> [vh path] nH;
nH -> [distance=2mm, vh path] {nI, nJ}; nJ -> nJ2;
nI -> [dashed, vh path] nG;
nK -> [vh path] nL;
nL -> [distance=2mm, vh path] {nM, nN}; nN -> nN2;
nM -> [dashed, vh path] nK; nN2 -> [dashed, -|-] nF;
% print function
nC -> nO;
% update function
nO -> nP;
nP -> [vh path] nQ;
nQ -> [distance=2mm, vh path] {nR, nS}; nR -> nR2 -> nR3; nS -> nS2;
nR3 -> [dashed, vh path] nQ;
% end
nP -> nT;
};
\end{tikzpicture}
\end{center}
\end{figure}
% -------------------------------------------------------------------------------------------[E]
\end{document}