pub fn flow_width(value: Option<f64>, max: f64, line: EdgeLine) -> f64Expand description
An edge’s width (px) for what it carries, value of the graph’s max:
area-true (sqrt), 1.4 px to 7 px; 1.6 px without a value; dotted edges
3–6 px so their dots show. Rounded to 0.1 px.