mirror of
https://github.com/multipleof4/lynchmark.git
synced 2026-01-14 16:47:55 +00:00
8 lines
472 B
JavaScript
8 lines
472 B
JavaScript
async function analyzeGPS(readings,boundary){
|
|
const{booleanPointInPolygon,lineString,length}=await import('https://cdn.jsdelivr.net/npm/@turf/turf@6.5.0/dist/turf.esm.min.js');
|
|
const pts=readings.filter(r=>booleanPointInPolygon({type:'Point',coordinates:r.loc},boundary,{ignoreBoundary:true})).sort((a,b)=>a.ts-b.ts);
|
|
if(pts.length<2)return 0;
|
|
const km=length(lineString(pts.map(r=>r.loc)),{units:'kilometers'});
|
|
return Math.round(km*100)/100;
|
|
}
|
|
export default analyzeGPS; |