edge_dash_style usage example ?

Hi,

I would like to draw all edges of a graph using dash lines.
I use the following code :

  gt.graph_draw(g.g,
                  vertex_text=g.vprop_nickname,
                  vertex_font_size=18,
                  edge_end_marker="square",
                  edge_dash_style = [10.0,10.0,0.0],
                  output="graph.svg")

but get only plain lines for edges...

Any clue ?

Most likely the dash length is simply too long. Try something like [1,
1, 0] or [.1, .1, 0].