Wie füge ich Pfeile in eine .tikz-Datei ein, die mit matlab2tikz generiert wurde?

Wie füge ich Pfeile in eine .tikz-Datei ein, die mit matlab2tikz generiert wurde?

Ich habe mit Matlab ein Diagramm erstellt. Dann habe ich .tikzmit Matlab2Tikz eine Datei generiert. Jetzt möchte ich Pfeile in die .tikzDatei einfügen und links vom Pfeil auch etwas schreiben.

Ich kann Pfeile und Text in der Darstellung erstellen, aber matlab2tikz kennt das Textfeld nicht. Daher funktioniert das nicht.

Dies ist meine .tikzDatei:

% Copyright (c) 2008--2012, Nico Schlömer <[email protected]>
% All rights reserved.
% 
% The latest updates can be retrieved from
%   http://www.mathworks.com/matlabcentral/fileexchange/22022-matlab2tikz
% where you can also make suggestions and rate matlab2tikz.
% 
% 
% 
\begin{tikzpicture}

\begin{axis}[%
view={0}{90},
width=\figurewidth,
height=\figureheight,
scale only axis,
xmin=257.75, xmax=260.4,
xlabel={[t] = s},
ymin=67.3, ymax=70.5,
ylabel={[v] = km/h},
axis lines=left,
legend style={at={(0.03,0.97)},anchor=north west,nodes=right}]
\addplot [
color=blue,
solid,
line width=1.5pt
]
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
};

\addlegendentry{$\text{v}_{\text{ang}}$};

\addplot [
color=green!50!black,
solid,
line width=1.5pt
]
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
};

\addlegendentry{$\text{v}_{\text{soll}}$};

\end{axis}
\end{tikzpicture}

Antwort1

Wie Sie in READMEder Datei unter nachlesen könnenmatlab2tikz GitHub-PlatzDas matlab2tikzErgebnis ist eine Datei, die in eine Datei eingefügt werden soll tex. In Ihrem Fall haben Sie sich entschieden, die Figurenabmessungen nicht festzulegen, und müssen sie in der externen Datei deklarieren und festlegen \figurewidth. \figureheightDas habe ich im nächsten Code getan.

\documentclass[border=2mm,tikz]{standalone}
\usepackage{amsmath}
\usepackage{pgfplots}

\pgfplotsset{plot coordinates/math parser=false}
\newlength\figureheight %declares new dimensions
\newlength\figurewidth
\begin{document}
% Setting the figure dimensions is optional (see above).
\setlength\figureheight{4cm} %fixes figure dimensions
\setlength\figurewidth{6cm}
\input{myplot.tikz} %your plot is into file 'myplot.tikz'
\end{document}

das erzeugt

Bildbeschreibung hier eingeben

Die zweite Frage ist nun, wie Sie etwas über Ihr Diagramm zeichnen können. Eine Möglichkeit wäre, TiKZder Datei neue Befehle hinzuzufügen .tikz. Dann müssen Sie Ihre Änderungen jedoch jedes Mal wiederholen, wenn Sie Ihr ursprüngliches Diagramm (aus Matlab) ändern möchten.

Eine weitere Möglichkeit besteht inMit TikZ auf einem Bild zeichnen. Auf diese Weise myplot.tikzwird es in einen TiKZKnoten eingefügt und Sie arrowswerden darüber gezeichnet. Der nächste Code zeigt, wie Sie die Lösungen von Caramdir und Jake für Ihr Problem verwenden können.

\documentclass[border=2mm,tikz]{standalone}
\usepackage{amsmath}
\usepackage{pgfplots}

\pgfplotsset{plot coordinates/math parser=false}
\newlength\figureheight
\newlength\figurewidth
\begin{document}
% Setting the figure dimensions is optional (see above).
\setlength\figureheight{4cm}
\setlength\figurewidth{6cm}
\begin{tikzpicture}
%
%The matlab2tikz plot is drawn as a node
%
\node[anchor=south west,inner sep=0] (myplot) at (0,0) {
\input{myplot.tikz}
};
%
% Some grid lines are drawn to help you placing your additions
%
\begin{scope}[x={(myplot.south east)}, y={(myplot.north west)}]
% 
% Next three lines must be commented to obtain final result
%
\draw[xstep=.1,ystep=.1,help lines,gray!50] (0,0) grid (1,1);
\foreach \x in {0,1,...,9} { \node [anchor=north,font=\tiny] at (\x/10,0) {0.\x}; }
\foreach \y in {0,1,...,9} { \node [anchor=east,font=\tiny] at (0,\y/10) {0.\y}; }
%
% You can add what you want over the plot
%
\draw[<-,thick,red] (.43,.55)--(.7,.7) 
     node[right,draw=red,rounded corners,
     text width=2cm,align=center,text=blue] 
     {something right of the arrow};
\end{scope}
\end{tikzpicture}
\end{document}

Das Ergebnis mit Hilfslinien ist

Bildbeschreibung hier eingeben

während das Finale so aussieht

Bildbeschreibung hier eingeben

Letzte Bemerkung: Ich habe standaloneein Paket verwendet, aber alles könnte in jeder Dokumentklasse gemacht werden.

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