index.cjs 1.0 KB

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  1. "use strict";Object.defineProperty(exports, "__esModule", {value: true});// index.ts
  2. var _invariant = require('@turf/invariant');
  3. var _helpers = require('@turf/helpers');
  4. function distance(from, to, options = {}) {
  5. var coordinates1 = _invariant.getCoord.call(void 0, from);
  6. var coordinates2 = _invariant.getCoord.call(void 0, to);
  7. var dLat = _helpers.degreesToRadians.call(void 0, coordinates2[1] - coordinates1[1]);
  8. var dLon = _helpers.degreesToRadians.call(void 0, coordinates2[0] - coordinates1[0]);
  9. var lat1 = _helpers.degreesToRadians.call(void 0, coordinates1[1]);
  10. var lat2 = _helpers.degreesToRadians.call(void 0, coordinates2[1]);
  11. var a = Math.pow(Math.sin(dLat / 2), 2) + Math.pow(Math.sin(dLon / 2), 2) * Math.cos(lat1) * Math.cos(lat2);
  12. return _helpers.radiansToLength.call(void 0,
  13. 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a)),
  14. options.units
  15. );
  16. }
  17. var turf_distance_default = distance;
  18. exports.default = turf_distance_default; exports.distance = distance;
  19. //# sourceMappingURL=index.cjs.map