mirror of
https://github.com/multipleof4/lynchmark.git
synced 2026-01-14 00:27:55 +00:00
12 lines
491 B
JavaScript
12 lines
491 B
JavaScript
export const analyzeGPS = async (readings, boundary) => {
|
|
const { point, booleanPointInPolygon, lineString, length } = await import('https://esm.sh/@turf/turf@6.5.0')
|
|
|
|
const coords = readings
|
|
.filter(({ loc }) => booleanPointInPolygon(point(loc), boundary, { ignoreBoundary: true }))
|
|
.sort((a, b) => a.ts - b.ts)
|
|
.map(r => r.loc)
|
|
|
|
return coords.length < 2 ? 0 :
|
|
Math.round(length(lineString(coords), { units: 'kilometers' }) * 100) / 100
|
|
}
|
|
export default analyzeGPS; |