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La trama de TikZ es demasiado detallada

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La trama de TikZ es demasiado detallada

Me preguntaba si había una manera más sucinta de expresar la siguiente trama (estoy usando el formato simple):

\input tikz
\tikzpicture
  \draw[help lines, ystep=.5] (-.2,-10) grid (12.5,15);
  \draw[->] (0, -10) to (0, 15) node[above] {$y$};
  \draw[->] (0, 0) to (12.5, 0) node[right] {$x$};
  \draw (1,-.5) node {$1$};
  \draw (2,-.5) node {$2$};
  \draw (3,-.5) node {$3$};
  \draw (4,-.5) node {$4$};
  \draw (5,-.5) node {$5$};
  \draw (6,-.5) node {$6$};
  \draw (7,-.5) node {$7$};
  \draw (8,-.5) node {$8$};
  \draw (9,-.5) node {$9$};
  \draw (10,-.5) node {$10$};
  \draw (11,-.5) node {$11$};
  \draw (12,-.5) node {$12$};

  \draw (-.5,-10) node {$-20$};
  \draw (-.5,-9) node {$-18$};
  \draw (-.5,-8) node {$-16$};
  \draw (-.5,-7) node {$-14$};
  \draw (-.5,-6) node {$-12$};
  \draw (-.5,-5) node {$-10$};
  \draw (-.5,-4) node {$-8$};
  \draw (-.5,-3) node {$-6$};
  \draw (-.5,-2) node {$-4$};
  \draw (-.5,-1) node {$-2$};
  \draw (-.5,0) node {$0$};
  \draw (-.5,1) node {$2$};
  \draw (-.5,2) node {$4$};
  \draw (-.5,3) node {$6$};
  \draw (-.5,4) node {$8$};
  \draw (-.5,5) node {$10$};

  \draw (0,-10) circle (2pt);
  \draw (1,-9) circle (2pt);
  \draw (2,-8) circle (2pt);
  \draw (3,-7) circle (2pt);
  \draw (4,-6) circle (2pt);
  \draw (5,-5) circle (2pt);
  \draw (6,-4) circle (2pt);
  \draw (7,-3) circle (2pt);
  \draw (8,-2) circle (2pt);
  \draw (9,-1) circle (2pt);
  \draw (10,0) circle (2pt);
  \draw (11,1) circle (2pt);
  \draw (12,2) circle (2pt);
\endtikzpicture
\bye

Sale tan grande que no cabe en una página.

Respuesta1

Aquí hay una versión LaTeX.

\documentclass[tikz,border=3.14mm]{standalone}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
  \draw[help lines, ystep=.5] (-.2,-10) grid (12.5,15);
  \draw[->] (0, -10) to (0, 15) node[above] {$y$};
  \draw[->] (0, 0) to (12.5, 0) node[right] {$x$};
  \foreach \X in {0,...,12}
  {\ifnum\X>0
  \node at (\X,-0.5) {$\X$};
  \fi
  \draw (\X,-10+\X) circle (2pt); }
  \foreach \Y in {-20,-18,...,10}
  {\node at (-0.5,\Y/2) {$\Y$};}
\end{tikzpicture}
\end{document}

Sorprendentemente, lo siguiente se ejecuta conpdftex

\input tikz
\tikzpicture
\draw[help lines, ystep=.5] (-.2,-10) grid (12.5,15);
  \draw[->] (0, -10) to (0, 15) node[above] {$y$};
  \draw[->] (0, 0) to (12.5, 0) node[right] {$x$};
  \foreach \X in {0,...,12}
  {\ifnum\X>0
  \node at (\X,-0.5) {$\X$};
  \fi
  \draw (\X,-10+\X) circle (2pt); }
  \foreach \Y in {-20,-18,...,10}
  {\node at (-0.5,\Y/2) {$\Y$};}
\endtikzpicture
\bye

Respuesta2

Entonces, después de pasar una noche leyendo el manual mientras estaba en un ciclo de prueba y error, después de muchas declaraciones solemnes para invocar poderes sobrenaturales para infligir daño o castigo a algo, todo lo cual ahora lamentaba, finalmente – victoriosamente – formé lo siguiente:

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{datavisualization, datavisualization.formats.functions}
\begin{document}
\begin{tikzpicture}
  \datavisualization[
    school book axes
    , x axis={unit length=5mm}
    , y axis={
      unit length=5mm
      , ticks={step=2}
      , grid
      , scaling = min at 0cm and max at 5cm
    }
    , visualize as line
  ]
  data[format=function] {
    var x : interval [0:12];
    func y = (\value x - 10) * 2;
  };
\end{tikzpicture}
\end{document}

¡Auge! ¡Guau! ¡Shazam! ¡Santo formato de datos de función, Batman! Esto es bastante bonito, hay que decirlo.

El único problema que encontré es que no funciona con el formato simple, lo que obliga al usuario a descender a un plano inferior de iluminación.

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