Gluing an Edge at a Trivalent Trace Diagram Vertex

Snippets Page

Trivalent diagram with a single vertex, and a blue strand adjacent to the vertex.

Source Code

\tikz[trivalent]{
    \coordinate(vxa)at(.5,.5)
        edge[]node[rightlabel,pos=1]{$a$}(.5,-.1)
        edge[bend left]node[rightlabel,pos=1]{$c$}(0,1.1)
        edge[bend right]node[rightlabel,pos=1]{$b$}(1,1.1);
    \draw[blue](.3,-.1)to[wavyup](-.2,1.1)node[leftlabel]{$1$};}
\tikz[trivalent]{
    \coordinate(vxa)at(.5,.5)
        edge[]node[leftlabel,pos=1]{$a$}(.5,-.1)
        edge[bend left]node[leftlabel,pos=1]{$b$}(0,1.1)
        edge[bend right]node[leftlabel,pos=1]{$c$}(1,1.1);
    \draw[blue](.7,-.1)to[wavyup](1.2,1.1)node[rightlabel]{$1$};}
\tikz[trivalent]{
    \coordinate(vxa)at(.5,.5)
        edge[]node[rightlabel,pos=1]{$a$}(.5,1.1)
        edge[bend left]node[rightlabel,pos=1]{$b$}(1,-.1)
        edge[bend right]node[rightlabel,pos=1]{$c$}(0,-.1);
    \draw[blue](-.2,-.1)to[wavyup](.3,1.1)node[leftlabel]{$1$};}
\tikz[trivalent]{
    \coordinate(vxa)at(.5,.5)
        edge[]node[leftlabel,pos=1]{$a$}(.5,1.1)
        edge[bend left]node[leftlabel,pos=1]{$c$}(1,-.1)
        edge[bend right]node[leftlabel,pos=1]{$b$}(0,-.1);
    \draw[blue](1.2,-.1)to[wavyup](.7,1.1)node[rightlabel]{$1$};}