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ノード/決定ボックスの異なるエッジから矢印を描く

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ノード/決定ボックスの異なるエッジから矢印を描く

私は tikz を初めて使用しており、決定ボックスのすべてのエッジから他のノードに線を引く方法がわかりません。

下の図ではフローチャート、矢印の起点をどのように指定すればよいでしょうか? たとえば、Decision1 の下部から Decision2 の左端に矢印を描きたいのですが、方法がわかりません。

私のコード:

\documentclass{article}
\usepackage{tikz}
\usepackage{fixltx2e}
\usetikzlibrary{shapes,arrows}
\usetikzlibrary{positioning}
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{tikzpicture}
\setlength\PreviewBorder{5pt}%
%%%>
\begin{document}
\pagestyle{empty}

% Define block styles
\tikzstyle{decision} = [diamond, draw, fill=blue!20, 
    text width=6.5em, text badly centered, node distance=3cm, inner sep=0pt]
\tikzstyle{block} = [rectangle, draw, fill=blue!20, 
    text width=10em, text centered, rounded corners, minimum height=4em]
\tikzstyle{mycircle} = [circle, thick, draw=orange, minimum height=4mm]

\tikzstyle{line} = [draw, -latex']
\tikzstyle{cloud} = [draw, ellipse,fill=red!20, node distance=3cm,
    minimum height=2em]

\begin{tikzpicture}[align=center,node distance = 2cm, auto]
    % Place nodes
    \node [block] (init) {Read system data};
    \node [block, right of=init, node distance=6cm] (trip) {Trip};

    \node [block, below of=init, node distance=2.7cm] (setloadavg)
             {Set average loading level to L\textsubscript{avg}=[0.8,0.9,1,1.1]};
    \node [decision, right of=setloadavg, node distance=6cm] (decision2) {Decision2};
    \node [block, right of=decision2, node distance=3cm] (stop1) {Stop};

    \node [block, below of=setloadavg, node distance=3cm] (setk) {Set K};
    \node [decision, right of=setk, node distance=6cm] (decision3) {Decision3};
    \node [mycircle, right of=decision3, node distance=4cm] (circle1) {1};

    \node [block, below of=setk, node distance=2cm] (startsim)
        {Start simulation (run 1) to generate cascade data, K=0};
    \node [block, right of=startsim, node distance=6cm] (increment) {Increment};
    \node [mycircle, left of=startsim, node distance=4cm] (circle2) {2};

    \node [block, below of=startsim, node distance=3cm] (setloadlevel) {Set Load level};
    \node [decision, right of=setloadlevel, node distance=6cm] (decision4) {Decision4};
    \node [mycircle, right of=decision4, node distance=4cm] (circle3) {2};

    \node [block, below of=setloadlevel, node distance=3cm] (runloadflow) {Run load flow};
    \node [block, right of=runloadflow, node distance=6cm] (stop2) {stop};

    \node [decision, below of=runloadflow, node distance=3cm] (decision1) {Decision1};
    \node [mycircle, left of=decision1, node distance=4cm] (circle2) {1};


    % Draw edges
    \path [line] (init) -- (setloadavg);
    \path [line] (setloadavg) -- (setk);
    \path [line] (setk) -- (startsim);
    \path [line] (startsim) -- (setloadlevel);
    %\path [line] (startsim) -- (circle2);
    \path [line] (setloadlevel) -- (runloadflow);
    \path [line] (runloadflow) -- (decision1);
    \path [line] (decision1) -- node [near start] {Yes} +(3,0) |-  (trip);


\end{tikzpicture}
\end{document}

可能であれば、解決策の説明とドキュメントへのリンクを教えていただければ幸いです。

ありがとう

答え1

一つの可能​​性:

\documentclass{article}
\usepackage{tikz}
\usepackage{fixltx2e}
\usetikzlibrary{shapes,arrows}
\usetikzlibrary{positioning}
\usepackage[active,tightpage]{preview}
\PreviewEnvironment{tikzpicture}
\setlength\PreviewBorder{5pt}%
%%%>
\begin{document}
\pagestyle{empty}

% Define block styles
\tikzstyle{decision} = [diamond, draw, fill=blue!20,
    text width=6.5em, text badly centered, node distance=3cm, inner sep=0pt]
\tikzstyle{block} = [rectangle, draw, fill=blue!20,
    text width=10em, text centered, rounded corners, minimum height=4em]
\tikzstyle{mycircle} = [circle, thick, draw=orange, minimum height=4mm]

\tikzstyle{line} = [draw, -latex']
\tikzstyle{cloud} = [draw, ellipse,fill=red!20, node distance=3cm,
    minimum height=2em]

\begin{tikzpicture}[align=center,node distance = 2cm, auto]
    % Place nodes
    \node [block] (init) {Read system data};
    \node [block, right of=init, node distance=6cm] (trip) {Trip};

    \node [block, below of=init, node distance=2.7cm] (setloadavg)
             {Set average loading level to L\textsubscript{avg}=[0.8,0.9,1,1.1]};
    \node [decision, right of=setloadavg, node distance=6cm] (decision2) {Decision2};
    \node [block, right of=decision2, node distance=3cm] (stop1) {Stop};

    \node [block, below of=setloadavg, node distance=3cm] (setk) {Set K};
    \node [decision, right of=setk, node distance=6cm] (decision3) {Decision3};
    \node [mycircle, right of=decision3, node distance=4cm] (circle1) {1};

    \node [block, below of=setk, node distance=2cm] (startsim)
        {Start simulation (run 1) to generate cascade data, K=0};
    \node [block, right of=startsim, node distance=6cm] (increment) {Increment};
    \node [mycircle, left of=startsim, node distance=4cm] (circle2) {2};

    \node [block, below of=startsim, node distance=3cm] (setloadlevel) {Set Load level};
    \node [decision, right of=setloadlevel, node distance=6cm] (decision4) {Decision4};
    \node [mycircle, right of=decision4, node distance=4cm] (circle3) {2};

    \node [block, below of=setloadlevel, node distance=3cm] (runloadflow) {Run load flow};
    \node [block, right of=runloadflow, node distance=6cm] (stop2) {stop};

    \node [decision, below of=runloadflow, node distance=3cm] (decision1) {Decision1};
    \node [mycircle, left of=decision1, node distance=4cm] (circle2) {1};


    % Draw edges
    \path [line] (init) -- (setloadavg);
    \path [line] (setloadavg) -- (setk);
    \path [line] (setk) -- (startsim);
    \path [line] (startsim) -- (setloadlevel);
    %\path [line] (startsim) -- (circle2);
    \path [line] (setloadlevel) -- (runloadflow);
    \path [line] (runloadflow) -- (decision1);
    \path [line] (decision1) -- node [near start] {Yes} +(3,0) coordinate (my coord) |-  (trip);
    \path [line] (decision1.south) -- +(0,-20pt) -| ([xshift=5pt, yshift=-5pt]my coord) |- (decision2.west);


\end{tikzpicture}
\end{document}

前の行に座標を配置することで、新しい矢印のパスを配置するときにその行を回避できます。.southと は、必要な終了ポイントと開始ポイントに対応する.westノード と のアンカーですdecision1。を使用すると、行が前の行の真上ではなく、その近くに配置されるようになります。decision2xshift...,yshift...

一部の構文が古くなっていることに注意してください。たとえば、\tikzsetではなくを使用する必要があります\tikzstyle。

追加の矢印

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