import FeatureSource from "./FeatureSource"; import {UIEventSource} from "../UIEventSource"; import LayerConfig from "../../Customizations/JSON/LayerConfig"; import {GeoOperations} from "../GeoOperations"; export default class WayHandlingApplyingFeatureSource implements FeatureSource { features: UIEventSource<{ feature: any; freshness: Date }[]>; constructor(layers: UIEventSource<{ layerDef: LayerConfig }[]>, upstream: FeatureSource) { this.features = upstream.features.map( features => { if(features === undefined){ return; } const layerDict = {}; let allDefaultWayHandling = true; for (const layer of layers.data) { layerDict[layer.layerDef.id] = layer; if (layer.layerDef.wayHandling !== LayerConfig.WAYHANDLING_DEFAULT) { allDefaultWayHandling = false; } } const newFeatures: { feature: any, freshness: Date }[] = []; for (const f of features) { const feat = f.feature; const layerId = feat._matching_layer_id; const layer: LayerConfig = layerDict[layerId].layerDef; if (layer === undefined) { throw "No layer found with id " + layerId; } if(layer.wayHandling === LayerConfig.WAYHANDLING_DEFAULT){ newFeatures.push(f); continue; } if (feat.geometry.type === "Point") { newFeatures.push(f); // it is a point, nothing to do here continue; } const centerPoint = GeoOperations.centerpoint(feat); centerPoint._matching_layer_id = feat._matching_layer_id; newFeatures.push({feature: centerPoint, freshness: f.freshness}); if(layer.wayHandling === LayerConfig.WAYHANDLING_CENTER_AND_WAY){ newFeatures.push(f); } } return newFeatures; } ); } }