mapcomplete/UI/ImportFlow/ImportUtils.ts
2022-01-26 21:40:38 +01:00

30 lines
No EOL
1.4 KiB
TypeScript

import {UIEventSource} from "../../Logic/UIEventSource";
import {GeoOperations} from "../../Logic/GeoOperations";
export class ImportUtils {
public static partitionFeaturesIfNearby(toPartitionFeatureCollection: ({ features: any[] }), compareWith: UIEventSource<{ features: any[] }>, cutoffDistanceInMeters: UIEventSource<number>): UIEventSource<{ hasNearby: any[], noNearby: any[] }> {
return compareWith.map(osmData => {
if (osmData?.features === undefined) {
return undefined
}
if (osmData.features.length === 0) {
return {noNearby: toPartitionFeatureCollection.features, hasNearby: []}
}
const maxDist = cutoffDistanceInMeters.data
const hasNearby = []
const noNearby = []
for (const toImportElement of toPartitionFeatureCollection.features) {
const hasNearbyFeature = osmData.features.some(f =>
maxDist >= GeoOperations.distanceBetween(toImportElement.geometry.coordinates, GeoOperations.centerpointCoordinates(f)))
if (hasNearbyFeature) {
hasNearby.push(toImportElement)
} else {
noNearby.push(toImportElement)
}
}
return {hasNearby, noNearby}
}, [cutoffDistanceInMeters]);
}
}