# TikZ - draw only vertices of a path line

Is there a way to draw only the vertices of the triangles?

\begin{tikzpicture}[x=1mm, y=1mm]

\coordinate (A) at (0:12);
\coordinate (B) at (120:12);
\coordinate (C) at (240:12);

\foreach \i in {0, 1, ..., 9}{

\draw[line width=0.1mm] (A) -- (B) -- (C) -- cycle;

\path
(A) coordinate (X)
-- (B) coordinate[pos=0.2] (A)
-- (C) coordinate[pos=0.2] (B)
-- (X) coordinate[pos=0.2] (C);
}

\end{tikzpicture}


The edges of the first triangle should be visible.

insert path is pretty convenient for such things

\begin{tikzpicture}[scale=.5,c/.style={insert path={node[inner sep=2pt,fill,circle]{}}}]
\coordinate (A) at (0:12);
\coordinate (B) at (120:12);
\coordinate (C) at (240:12);
\draw[line width=0.1mm] (A) -- (B) -- (C) -- cycle;
\foreach \i in {0, 1, ..., 9}{
\path  (A) [c]coordinate (X)
-- (B) [c]coordinate[pos=0.2] (A)
-- (C) [c]coordinate[pos=0.2] (B)
-- (X)    coordinate[pos=0.2] (C);
}
\end{tikzpicture}


• The [c] for (X) is not needed, because the circle is already drawn at the beginning for (A). Nice idea +1. – Heiko Oberdiek Aug 20 '15 at 17:56
• @HeikoOberdiek Just copy/pasting too fast. I wasn't thinking apparently. Thanks – percusse Aug 20 '15 at 18:45

The solution of percusse without insert path and with a little smaller circles:

\documentclass{article}
\usepackage{tikz}

\begin{document}
\begin{tikzpicture}[scale=.5]
\coordinate (A) at (0:12);
\coordinate (B) at (120:12);
\coordinate (C) at (240:12);
\draw[line width=0.1mm] (A) -- (B) -- (C) -- cycle;
\path[
every node/.style={circle, fill, inner sep=1.5pt},
]
\foreach \i in {0, 1, ..., 9}{
(A) node (X) {}
-- (B) node{} coordinate[pos=0.2] (A)
-- (C) node{} coordinate[pos=0.2] (B)
-- (X.center) coordinate[pos=0.2] (C)
}
;
\end{tikzpicture}
\end{document}