14

In the following code, I want to label the point (1,1) as "P." (It is not exciting, I know. It is part of a graph that I want to draw.) I have the code \node[above right, outer sep=2pt] (1,1) {P}; to do this. TikZ is putting the label above and to the right of the origin.

Why isn't TikZ putting the label above and to the right of (1,1)?

I have a grid placed on the Cartesian plane. With outer sep=2pt, I expected that some of the grid would be obscured by the label P. I want the letter "P" to stand out on the graph, and I think it would if some of the grid lines were obscured.

\documentclass{amsart}
\usepackage{tikz}
\usetikzlibrary{shapes,positioning,intersections,quotes}


\begin{document}

\begin{tikzpicture}
\draw[yellow] (-1.25,-1.25) grid[xstep=0.5, ystep=0.5]  (2.25,2.25);
\draw[draw=gray!30,latex-latex] (0,2) +(0,0.5cm) node[above right] {$y$} -- (0,-1) -- +(0,-0.5cm);
\draw[draw=gray!30,latex-latex] (-1,0) +(-0.5cm,0) -- (2,0) -- +(0.5cm,0) node[below right] {$x$};
\filldraw (1,1) circle[radius=1.5pt];
\node[above right, outer sep=2pt] (1,1) {P};
\end{tikzpicture}

\end{document}
  • 2
    Have you tried adding e.g. fill=white to the node to obscure what's behind it? – cfr Apr 19 '15 at 20:52
  • 2
    @cfr Now I did. Thanks. (I also added the option "circle.") – user74973 Apr 19 '15 at 20:57
8

You can obscure the grid lines behind the node using fill=white. You can also do this if you use a pin which will draw a line from the point to the label. Or you could use the label option which is similar but without the line.

\documentclass[tikz,border=5pt]{standalone}

\usetikzlibrary{shapes,positioning,intersections,quotes}

\begin{document}

  \begin{tikzpicture}
    \draw[yellow] (-1.25,-1.25) grid[xstep=0.5, ystep=0.5]  (2.25,2.25);
    \draw[draw=gray!30,latex-latex] (0,2) +(0,0.5cm) node[above right] {$y$} -- (0,-1) -- +(0,-0.5cm);
    \draw[draw=gray!30,latex-latex] (-1,0) +(-0.5cm,0) -- (2,0) -- +(0.5cm,0) node[below right] {$x$};
    \filldraw (1,1) circle[radius=1.5pt];
    \node [fill, draw, circle, minimum width=3pt, inner sep=0pt, pin={[fill=white, outer sep=2pt]135:P}] at (.5,1) {};
    \node[above right=10pt of {(1,1)}, outer sep=2pt,fill=white] {P};
  \end{tikzpicture}

\end{document}

labelling nodes

|improve this answer|||||
  • Thanks for illustrating label and pin. I will refer to the manual for these options. I want to get the "P" above and to the right of the point (1,1). – user74973 Apr 19 '15 at 21:01
  • I am still not able to move the "P" to the appropriate position. Why doesn't \node[above right, outer sep=2pt] (1,1) {P}; do it? – user74973 Apr 19 '15 at 21:32
  • @user74973 Have you tried \node[...] at (1,1) {P};? – 1010011010 Apr 19 '15 at 22:53
  • @user74973: You are missing at before (1,1). – user11232 Apr 19 '15 at 22:55
  • 2
    @user74973 Use label={[fill=white,text=green!20!white]left:$P$} – user11232 Apr 20 '15 at 15:18

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.