victory-vendor/lib-vendor/d3-shape/src/curve/bundle.js

Vendored dependencies for Victory

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _basis = require("./basis.js");
function Bundle(context, beta) {
  this._basis = new _basis.Basis(context);
  this._beta = beta;
}
Bundle.prototype = {
  lineStart: function () {
    this._x = [];
    this._y = [];
    this._basis.lineStart();
  },
  lineEnd: function () {
    var x = this._x,
      y = this._y,
      j = x.length - 1;
    if (j > 0) {
      var x0 = x[0],
        y0 = y[0],
        dx = x[j] - x0,
        dy = y[j] - y0,
        i = -1,
        t;
      while (++i <= j) {
        t = i / j;
        this._basis.point(this._beta * x[i] + (1 - this._beta) * (x0 + t * dx), this._beta * y[i] + (1 - this._beta) * (y0 + t * dy));
      }
    }
    this._x = this._y = null;
    this._basis.lineEnd();
  },
  point: function (x, y) {
    this._x.push(+x);
    this._y.push(+y);
  }
};
var _default = exports.default = function custom(beta) {
  function bundle(context) {
    return beta === 1 ? new _basis.Basis(context) : new Bundle(context, beta);
  }
  bundle.beta = function (beta) {
    return custom(+beta);
  };
  return bundle;
}(0.85);