TikZ edges to/from center of nodes

Normally a edge drawn between two nodes starts and stops and the boundary of the nodes. How can one draw an edge to the center of a node?

\documentclass[12pt]{article}
\usepackage{tikz}
\begin{document}
Current result:

\begin{tikzpicture}
\node (0)              {};
\node (1) [right of=0] {};
\node (2) [above right of=1] {};
\draw (0) -- (1);
\draw (1) -- (2);
\end{tikzpicture}

Desired result (looks like):

\begin{tikzpicture}
\draw (0,0) -- (1,0);
\draw (1,0) -- (1.5,.5);
\end{tikzpicture}
\end{document}


I want my TikZ code to be readable, so want I first place the nodes with relative positions and then draw the edges. I created the desired result without using the relative placement of nodes. This is not an acceptable solution.

-

You can suffix an anchor to any node:

\documentclass[12pt]{article}
\usepackage{tikz}
\begin{document}
Current result:

\begin{tikzpicture}
\node (0)              {};
\node (1) [right of=0] {};
\node (2) [above right of=1] {};
\draw (0.center) -- (1.center);
\draw (1.center) -- (2.center);
\end{tikzpicture}

\end{document}

-
Beautiful. I knew the answer should be simple. Thanks! –  Tyson Williams Jul 30 '11 at 19:29