ribbon()

ribbon(arguments…)

Generates a ribbon for the given arguments. The arguments are arbitrary; they are simply propagated to the ribbon generator’s accessor functions along with the this object. For example, with the default settings, a chord object expected:

var ribbon = d3.ribbon();

ribbon({
  source: {startAngle: 0.7524114, endAngle: 1.1212972, radius: 240},
  target: {startAngle: 1.8617078, endAngle: 1.9842927, radius: 240}
}); // "M164.0162810494058,-175.21032946354026A240,240,0,0,1,216.1595644740915,-104.28347273835429Q0,0,229.9158815306728,68.8381247563705A240,240,0,0,1,219.77316791012538,96.43523560788266Q0,0,164.0162810494058,-175.21032946354026Z"

Or equivalently if the radius is instead defined as a constant:

var ribbon = d3.ribbon()
    .radius(240);

ribbon({
  source: {startAngle: 0.7524114, endAngle: 1.1212972},
  target: {startAngle: 1.8617078, endAngle: 1.9842927}
}); // "M164.0162810494058,-175.21032946354026A240,240,0,0,1,216.1595644740915,-104.28347273835429Q0,0,229.9158815306728,68.8381247563705A240,240,0,0,1,219.77316791012538,96.43523560788266Q0,0,164.0162810494058,-175.21032946354026Z"

If the ribbon generator has a context, then the ribbon is rendered to this context as a sequence of path method calls and this function returns void. Otherwise, a path data string is returned.

Links:

https://github.com/d3/d3-chord#_ribbon

doc_D3_Js

2016-11-24 10:28:48

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