Function d3_geo_pathProjectStream

explainshell/web/static/js/d3.v3.js:3525–3552

(project)

    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 ]);
    });
    return function(stream) {
      stream = resample(stream);
      return {
        point: function(λ, φ) {
          stream.point(λ * d3_radians, φ * d3_radians);
        },
        sphere: function() {
          stream.sphere();
        },
        lineStart: function() {
          stream.lineStart();
        },
        lineEnd: function() {
          stream.lineEnd();
        },
        polygonStart: function() {
          stream.polygonStart();
        },
        polygonEnd: function() {
          stream.polygonEnd();
        }
      };
    };
  }
  d3.geo.albers = function() {
    return d3.geo.conicEqualArea().parallels([ 29.5, 45.5 ]).rotate([ 98, 0 ]).center([ 0, 38 ]).scale(1e3);
  };