@jorgenphi/staticmaps/dist/circle.js

A Node.js library for creating map images with markers, polylines, polygons and text.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = void 0;

var _classCallCheck2 = _interopRequireDefault(require("@babel/runtime/helpers/classCallCheck"));

var _createClass2 = _interopRequireDefault(require("@babel/runtime/helpers/createClass"));

var _circle = _interopRequireDefault(require("@turf/circle"));

var _bbox = _interopRequireDefault(require("@turf/bbox"));

var Circle = /*#__PURE__*/function () {
  function Circle() {
    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
    (0, _classCallCheck2["default"])(this, Circle);
    this.options = options;
    this.coord = this.options.coord;
    this.radius = Number(this.options.radius);
    this.color = this.options.color || '#000000BB';
    this.fill = this.options.fill || '#AA0000BB';
    this.width = Number.isFinite(this.options.width) ? Number(this.options.width) : 3;
    if (!this.coord || !Array.isArray(this.coord) || this.coord.length < 2) throw new Error('Specify center of circle');
    if (!this.radius || !Number(this.radius)) throw new Error('Specify radius of circle');
  }
  /**
   * calculate the coordinates of the envelope / bounding box: (min_lon, min_lat, max_lon, max_lat)
   */


  (0, _createClass2["default"])(Circle, [{
    key: "extent",
    value: function extent() {
      var center = {
        type: 'Feature',
        geometry: {
          type: 'Point',
          coordinates: this.coord
        }
      };
      var circ = (0, _circle["default"])(center, this.radius / 1000, {
        steps: 100
      });
      var circleBbox = (0, _bbox["default"])(circ);
      return circleBbox;
    }
  }]);
  return Circle;
}();

exports["default"] = Circle;