dotfile_sample.dot

graph AFD1 {
    rankdir=LR;
    
    node [color="#1f3656", fontcolor="#1f3656", shape=circle, penwidth=1.5, fontsize=16,nodesep=0.5];
    edge [color="#1f3656", fontcolor="#e54a45", penwidth=1.5, fontsize=16, minlen=1];
    graph [bgcolor=transparent, splines=true];
   
    center = 1;

    //node [shape = doublecircle]; qf;
    //node [shape = circle]; qi;
    //node [fillcolor=white, shape=point, fixedsize=false, width=0, label="", size=10]; q0;

    //{rank=same q_a q_b};

    a -- b [label="1.5"];
    a -- c [label="2.0"];
    b -- d [label="1.5"];
    c -- f [label="0.2"];
    d -- e [label="0.5"];
    f -- e [label="0.2"];
}