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- // index.ts
- import { cleanCoords } from "@turf/clean-coords";
- import { lineSegment } from "@turf/line-segment";
- import { rhumbBearing } from "@turf/rhumb-bearing";
- import { bearingToAzimuth } from "@turf/helpers";
- function booleanParallel(line1, line2) {
- if (!line1) throw new Error("line1 is required");
- if (!line2) throw new Error("line2 is required");
- var type1 = getType(line1, "line1");
- if (type1 !== "LineString") throw new Error("line1 must be a LineString");
- var type2 = getType(line2, "line2");
- if (type2 !== "LineString") throw new Error("line2 must be a LineString");
- var segments1 = lineSegment(cleanCoords(line1)).features;
- var segments2 = lineSegment(cleanCoords(line2)).features;
- for (var i = 0; i < segments1.length; i++) {
- var segment1 = segments1[i].geometry.coordinates;
- if (!segments2[i]) break;
- var segment2 = segments2[i].geometry.coordinates;
- if (!isParallel(segment1, segment2)) return false;
- }
- return true;
- }
- function isParallel(segment1, segment2) {
- var slope1 = bearingToAzimuth(rhumbBearing(segment1[0], segment1[1]));
- var slope2 = bearingToAzimuth(rhumbBearing(segment2[0], segment2[1]));
- return slope1 === slope2 || (slope2 - slope1) % 180 === 0;
- }
- function getType(geojson, name) {
- if (geojson.geometry && geojson.geometry.type)
- return geojson.geometry.type;
- if (geojson.type) return geojson.type;
- throw new Error("Invalid GeoJSON object for " + name);
- }
- var turf_boolean_parallel_default = booleanParallel;
- export {
- booleanParallel,
- turf_boolean_parallel_default as default
- };
- //# sourceMappingURL=index.js.map
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