Here is flowchart drawn using TiKz. I'm trying to connect the arrows in a clean way. For instance, I want to connect box3.west
to retF.south
and box2.east
to retT.south
. I would like to have the arrow end at the midpoint of retF.south
and retT.south
. Is there a general way to do this?
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{shapes.geometric,arrows,fit,matrix,positioning,shapes.multipart}
\tikzset
{
process/.style={rectangle, minimum width=2cm, minimum height=1cm, align=center, text width=2cm, draw},
arrow/.style={thick, ->, >=stealth},
decision/.style ={diamond, draw=black, minimum width=1cm, minimum height=1cm, text badly centered, node distance=3cm, inner sep=0pt}
}
\begin{document}
\begin{figure}[htp]
\centering
{
\begin{tikzpicture}[scale=0.5, transform shape]
\node (p0) [] {foo(K)};
\node (p1) [process, below of=p0, text width=4cm] {box1};
\node (p2) [process, below of=p1, yshift=-1.5cm, text width=4.5cm] {box2};
\node (p3) [decision, below of=p2, yshift=-1.5cm, text width=2cm] {box3};
\node (retT) [process, right of=p1, xshift=4cm, text width=1cm, minimum width=1cm] {retT};
\node (retF) [process, left of=p2, xshift=-5cm, text width=1cm, minimum width=1cm] {retF};
\draw [arrow] (p1) -- node[anchor=west] {need more steps} (p2);
\draw [arrow] (p1) -- node[anchor=south] {no more steps} (retT);
\draw [arrow] (p2.east) -- ++(1.5,0) node[anchor=north,pos=1] {K = X} |- (retT.west);
\draw [arrow] (p2.west) -- node[anchor=north,pos=0.5] {K $<$ X} (retF.east);
\draw [arrow] (p2) -- node[anchor=east] {K $>$ X} (p3);
\draw [arrow] (p3.west) --+(-4.2,0) node[anchor=north]{No} |- (retF.south);
\end{tikzpicture}
}
\caption{connect box3.west to retF.south}
\end{figure}
\end{document}
Best Answer
Just summarizing the comments so this question has an actual answer (it was highlighted as unanswered in a recent newsletter). You want to use the
-|
path operation to draw an L-shaped path.If you want to have multiple L-shaped paths you can do that by adding a coordinate in between. Adding this line:
will draw an L-shaped path horizontally from
p3.east
to a point 1.5cm up and to the right. I put the red bullet there just to illustrate it; it's not necessary for your final diagram. Then the path goes to a point 1cm to the right ofp2.south
.You can fiddle with the positioning of that intermediate node any way you like.