Tikz-Diagramm: Zusätzlicher rechter Winkel und Raum

Question

Ich versuche, dieses Diagramm nachzubilden:

Meins sieht schon ganz gut aus, aber an der Verbindung zwischen dem Environmentund SensorKnoten fehlt der 2. rechte Winkel und Platz für den measured byText.

Wie kann ich dem Knoten den erforderlichen Speicherplatz hinzufügen?

tikzIst es außerdem möglich, ein Diagramm aus einer externen Datei zu laden ?

Dies ist der Code für ein MWE (Sie können hier damit spielenhttps://www.overleaf.com/3051741jzxtvm#/8435913/)

\documentclass[tikz, border=10pt]{standalone}
\usepackage{verbatim}

\tikzset{
    vertex/.style = {
        circle,
        fill            = black,
        outer sep = 2pt,
        inner sep = 1pt,
    }
}
\begin{document}
\begin{tikzpicture}[node distance = 2cm, auto]
  [
    post/.style={->,shorten >=1pt,semithick}
  ]

  % Nodes
  \node[draw] (Sensor) at (2,0) {Sensor};
  \node[draw] (Comparator) at (6,0) {Comparator};
  \node[draw] (Actuator) at (10,0) {Actuator};
  \node[draw] (Feedback) at (13,2) {Feedback};
  \node[draw] (Environment) at (6,-2) {Environment};
  \node[draw] (Disturbances) at (6,-4) {Disturbances};

  \node at (1, 1) {\textbf{ Input}};
  \node at (11, 1) {\textbf{ Output}};

  \draw[->,draw=red] (Sensor) to node {alerts}  (Comparator);
  \draw[->,draw=red] (Comparator) to node {drives}  (Actuator);

  \draw[-, draw=red] (Actuator) -| node[pos=0.25] {affects} (Feedback);
  \draw[->, draw=red] (Feedback) |- (Environment);
  \draw[->, draw=red] (Environment) -| node {measured by}  (Sensor);
  \draw[<-,draw=red] (Environment) to node {affect}  (Disturbances);



\end{tikzpicture}
\end{document}

Answer 1

Eine Alternative, die Tikzlibrary-Ketten und -Positionierung verwendet:

\documentclass[tikz, border=10pt]{standalone}
        \usetikzlibrary{chains,positioning}
    \usepackage{verbatim}

    \begin{document}
        \begin{tikzpicture}[
    node distance = 2cm, auto,
      start chain = going right,
       box/.style = {rectangle, draw, on chain}]
    % Nodes
      \node[box] (Sensor)       {Sensor};
      \node[box] (Comparator)   {Comparator};
      \node[box] (Actuator)     {Actuator};
      \node[box,above right=of Actuator] (Feedback)     {Feedback};
      \node[box,below=of Comparator] (Environment)      {Environment};
      \node[box,below=of Environment] (Disturbances)    {Disturbances};
    % Lines  
      \draw[->,draw=red] (Sensor)     to node {alerts}  (Comparator);
      \draw[->,draw=red] (Comparator) to node {drives}  (Actuator);
      \draw[-, draw=red] (Actuator) -| node[pos=0.25] {affects} 
                                       node[pos=0.25,above=1cm] {\textbf{ Output}}   
                                       (Feedback);
      \draw[->,draw=red] (Feedback) |- (Environment);
      \draw[->,draw=red] (Environment) -| ([xshift=-2.4cm] Sensor.west) -- 
                                node[above] {measured by}  
                                node[above=1cm] {\textbf{ Input}}   (Sensor.west);
      \draw[<-,draw=red] (Environment) to node {affect}  (Disturbances);
        \end{tikzpicture}
    \end{document}

Answer 2

Aus Zarkos Beispielcode entnommen

\documentclass[tikz, border=10pt]{standalone}
\usetikzlibrary{chains,positioning}
\usepackage{verbatim}
\usepackage{xcolor}
\DefineNamedColor{named}{BrickRed}      {cmyk}{0,0.89,0.94,0.28}
\DefineNamedColor{named}{DarkRed}       {cmyk}{0.4,0.89,0.94,0.28}
\renewcommand{\familydefault}{\sfdefault}


\begin{document}
\begin{tikzpicture}[
  node distance = 2cm, auto,
  start chain = going right,
  box/.style = {rectangle, draw, on chain}]
  \tikzset{>=latex}
  \tikzstyle{nodebox}=[box,draw=none,font=\bf]
  \tikzstyle{redline}=[-,BrickRed,draw=BrickRed,ultra thick]
  \tikzstyle{redliner}=[redline,->]
  \tikzstyle{redlinel}=[redline,<-]
  \tikzstyle{darklabel}=[below,DarkRed]

  % Nodes
  \node[nodebox] (Sensor)       {Sensor};
  \node[nodebox] (Comparator)   {Comparator};
  \node[nodebox] (Actuator)     {Actuator};
  \node[nodebox,above right=of Actuator] (Feedback)     {Feedback};
  \node[nodebox,below=of Comparator] (Environment)      {Environment};
  \node[nodebox,below=of Environment] (Disturbances)    {Disturbances};

  % Lines  
  \draw[redliner] (Sensor)     to node[darklabel] {alerts}  (Comparator);
  \draw[redliner] (Comparator) to node[darklabel] {drives}  (Actuator);
  \draw[redline] (Actuator) -| node[darklabel,pos=0.25] {affects} 
  node[pos=0.25,above=1em,DarkRed,font=\bf] {Output} (Feedback);
  \draw[redliner] (Feedback) |- (Environment);
  \draw[redliner] (Environment) -| ([xshift=-2.4cm] Sensor.west) -- 
  node[darklabel] {measured by}  
  node[above=1em,DarkRed,font=\bf] {Input}   (Sensor.west);
  \draw[redlinel] (Environment) to node[DarkRed] {affect}  (Disturbances);
\end{tikzpicture}

\end{document}

Answer 3

Hier ist ein schneller Hack:

\draw[->, draw=red] (Environment) -| ($(Sensor)+(-3,0)$) 
  |- node[anchor=south west] {measured by} (Sensor);

Sie müssen \usetikzlibrary{calc}die Präambel ergänzen.

($(Sensor)+(-3,0)$)fügt dem Pfad eine zusätzliche Koordinate hinzu. (-3,0)ist der Versatz vom (Sensor)Knoten.

Aktualisieren(inspiriert von Zarkos Antwort)

Stattdessen ($(Sensor)+(-3,0)$)können Sie verwenden ([xshift=-2.4cm] Sensor.west). Es müssen keine zusätzlichen tikz-Bibliotheken eingebunden werden.