Hice un trazado con matlab. Luego generé un .tikz
archivo con matlab2tikz. Ahora quiero insertar flechas en el .tikz
archivo y también escribir algo a la izquierda de la flecha.
Puedo crear flechas y texto en el gráfico, pero matlab2tikz no conoce el cuadro de texto. Entonces esto no funciona.
Este es mi .tikz
archivo:
% 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}
Respuesta1
Como se puede leer en README
el archivo enmatlab2tikz lugar githublo que matlab2tikz
produce es un archivo para ser incluido en un tex
archivo. En su caso, ha decidido no fijar las dimensiones de la figura y necesita declararlas y configurarlas \figurewidth
en \figureheight
el archivo externo. Eso es lo que hice en el siguiente código.
\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}
que produce
Ahora la segunda pregunta es cómo dibujar algo sobre tu trama. Una posibilidad sería agregar nuevos TiKZ
comandos al .tikz
archivo, pero luego deberá rehacer las modificaciones cada vez que desee cambiar su gráfico original (de matlab).
Otra posibilidad se proporciona enDibujar sobre una imagen con TikZ. De esta manera, myplot.tikz
se incluye en un TiKZ
nodo y se arrows
dibuja sobre él. El siguiente código muestra cómo utilizar las soluciones de Caramdir y Jake para su problema.
\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}
El resultado con las líneas de ayuda es
mientras que el final se muestra así
Última observación: he estado usando standalone
el paquete pero todo se puede hacer en cualquier clase de documento.