Function d3_geo_pathCircle

explainshell/web/static/js/d3.v3.js:3522–3524

(radius)

    return path.projection(d3.geo.albersUsa()).context(null);
  };
  function d3_geo_pathCircle(radius) {
    return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + +2 * radius + "z";
  }
  function d3_geo_pathProjectStream(project) {
    var resample = d3_geo_resample(function(λ, φ) {
      return project([ λ * d3_degrees, φ * d3_degrees ]);