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- "use strict";Object.defineProperty(exports, "__esModule", {value: true});// index.ts
- var _booleanpointinpolygon = require('@turf/boolean-point-in-polygon');
- var _pointtolinedistance = require('@turf/point-to-line-distance');
- var _polygontoline = require('@turf/polygon-to-line');
- var _invariant = require('@turf/invariant');
- var _meta = require('@turf/meta');
- var _helpers = require('@turf/helpers');
- function pointToPolygonDistance(point, polygonOrMultiPolygon, options = {}) {
- var _a, _b;
- const method = (_a = options.method) != null ? _a : "geodesic";
- const units = (_b = options.units) != null ? _b : "kilometers";
- if (!point) throw new Error("point is required");
- if (!polygonOrMultiPolygon)
- throw new Error("polygon or multi-polygon is required");
- const geom = _invariant.getGeom.call(void 0, polygonOrMultiPolygon);
- if (geom.type === "MultiPolygon") {
- const distances = geom.coordinates.map(
- (coords) => pointToPolygonDistance(point, _helpers.polygon.call(void 0, coords), { method, units })
- );
- return Math.min(...distances.map(Math.abs)) * (_booleanpointinpolygon.booleanPointInPolygon.call(void 0, point, polygonOrMultiPolygon) ? -1 : 1);
- }
- if (geom.coordinates.length > 1) {
- const [exteriorDistance, ...interiorDistances] = geom.coordinates.map(
- (coords) => pointToPolygonDistance(point, _helpers.polygon.call(void 0, [coords]), { method, units })
- );
- if (exteriorDistance >= 0) return exteriorDistance;
- const smallestInteriorDistance = Math.min(...interiorDistances);
- if (smallestInteriorDistance < 0) return Math.abs(smallestInteriorDistance);
- return Math.min(smallestInteriorDistance, Math.abs(exteriorDistance));
- }
- const lines = _polygontoline.polygonToLine.call(void 0, geom);
- let minDistance = Infinity;
- _meta.flattenEach.call(void 0, lines, (feature) => {
- minDistance = Math.min(
- minDistance,
- _pointtolinedistance.pointToLineDistance.call(void 0, point, feature, {
- method,
- units
- })
- );
- });
- return _booleanpointinpolygon.booleanPointInPolygon.call(void 0, point, geom) ? -minDistance : minDistance;
- }
- var turf_point_to_polygon_distance_default = pointToPolygonDistance;
- exports.default = turf_point_to_polygon_distance_default; exports.pointToPolygonDistance = pointToPolygonDistance;
- //# sourceMappingURL=index.cjs.map
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