Tikz: How do you label a circled node to the left without collisions?

Question

I'm trying to label a circled node in Tikz with some text to the left. The problem is it is colliding with the circle.

For example I have something like:

\begin{tikzpicture}
\node[draw,circle] at (0,0) {A};
\node[left] at (0,0) {010101};
\end{tikzpicture}

This causes the binary to overlap the node A. What is the best way to fix this?

Answer 1

One way to fix this is to load the positioning library

Note that in the code below I have named your first node as nameofnode and then positioned the text in relation to it by using left=of nameofnode.

\documentclass{standalone}

\usepackage{tikz}
\usetikzlibrary{positioning}

\begin{document}
\begin{tikzpicture}
\node[draw,circle](nameofnode) at (0,0) {A};
\node[left=of nameofnode] {010101};
\end{tikzpicture}

\end{document}

Answer 2

An even easier version is using the label option for nodes:

\documentclass{article}
\usepackage{tikz}

\begin{document}
    \begin{tikzpicture}
        \node[draw,circle,label=left:010101] (CircleNode) at (0,0)  {A};
    \end{tikzpicture}
\end{document}

It looks just like Peter Grill's solution.

Answer 3

Instead of placing the text node at via coordinates, you could name the circle node and place it to the left of the named circled node:

Code:

\documentclass[border=2pt]{standalone}
\usepackage{tikz}

\begin{document}
\begin{tikzpicture}
  \node[draw,circle] (CircleNode) at (0,0)  {A};
  \node[left] at (CircleNode.west) {010101};
\end{tikzpicture}

\end{document}