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Optimizing trees theme and clustering

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This commit is contained in:
Pieter Vander Vennet 2021-10-15 18:48:33 +02:00
parent 5ac035be20
commit 8fca373437
11 changed files with 125 additions and 67 deletions
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5
UI/ShowDataLayer/ShowDataLayer.ts
View file

@ -38,7 +38,8 @@ export default class ShowDataLayer {
ShowDataLayer.dataLayerIds++
this._enablePopups = options.enablePopups ?? true;
if (options.features === undefined) {
throw "Invalid ShowDataLayer invocation"
console.error("Invalid ShowDataLayer invocation: options.features is undefed")
throw "Invalid ShowDataLayer invocation: options.features is undefed"
}
const features = options.features.features.map(featFreshes => featFreshes.map(ff => ff.feature));
this._features = features;
@ -166,7 +167,7 @@ export default class ShowDataLayer {
private createStyleFor(feature) {
const tagsSource = this.allElements?.addOrGetElement(feature) ?? new UIEventSource<any>(feature.properties.id);
const tagsSource = this.allElements?.addOrGetElement(feature) ?? new UIEventSource<any>(feature.properties);
// Every object is tied to exactly one layer
const layer = this._layerToShow
return layer?.GenerateLeafletStyle(tagsSource, true);

125
UI/ShowDataLayer/TileHierarchyAggregator.ts
View file

@ -4,7 +4,11 @@ import {UIEventSource} from "../../Logic/UIEventSource";
import {Tiles} from "../../Models/TileRange";
import StaticFeatureSource from "../../Logic/FeatureSource/Sources/StaticFeatureSource";
import {BBox} from "../../Logic/BBox";
import FilteredLayer from "../../Models/FilteredLayer";
/**
* A feature source containing but a single feature, which keeps stats about a tile
*/
export class TileHierarchyAggregator implements FeatureSource {
private _parent: TileHierarchyAggregator;
private _root: TileHierarchyAggregator;
@ -16,28 +20,39 @@ export class TileHierarchyAggregator implements FeatureSource {
private _subtiles: [TileHierarchyAggregator, TileHierarchyAggregator, TileHierarchyAggregator, TileHierarchyAggregator] = [undefined, undefined, undefined, undefined]
public totalValue: number = 0
public showCount: number = 0
public hiddenCount: number = 0
private static readonly empty = []
public readonly features = new UIEventSource<{ feature: any, freshness: Date }[]>(TileHierarchyAggregator.empty)
public readonly name;
private readonly featuresStatic = []
private readonly featureProperties: { count: string, kilocount: string, tileId: string, id: string };
private constructor(parent: TileHierarchyAggregator, z: number, x: number, y: number) {
private readonly featureProperties: { count: string, kilocount: string, tileId: string, id: string, showCount: string, totalCount: string };
private readonly _state: { filteredLayers: UIEventSource<FilteredLayer[]> };
private readonly updateSignal = new UIEventSource<any>(undefined)
private constructor(parent: TileHierarchyAggregator,
state: {
filteredLayers: UIEventSource<FilteredLayer[]>
},
z: number, x: number, y: number) {
this._parent = parent;
this._state = state;
this._root = parent?._root ?? this
this._z = z;
this._x = x;
this._y = y;
this._tileIndex = Tiles.tile_index(z, x, y)
this.name = "Count(" + this._tileIndex + ")"
const totals = {
id: ""+this._tileIndex,
tileId: ""+this._tileIndex,
id: "" + this._tileIndex,
tileId: "" + this._tileIndex,
count: `0`,
kilocount: "0"
kilocount: "0",
showCount: "0",
totalCount: "0"
}
this.featureProperties = totals
@ -91,25 +106,57 @@ export class TileHierarchyAggregator implements FeatureSource {
private update() {
const newMap = new Map<string, number>()
let total = 0
let hiddenCount = 0
let showCount = 0
let isShown: Map<string, FilteredLayer> = new Map<string, FilteredLayer>()
for (const filteredLayer of this._state.filteredLayers.data) {
isShown.set(filteredLayer.layerDef.id, filteredLayer)
}
this?._counter?.countsPerLayer?.data?.forEach((count, layerId) => {
newMap.set(layerId, count)
newMap.set("layer:" + layerId, count)
total += count
this.featureProperties["direct_layer:" + layerId] = count
const flayer = isShown.get(layerId)
if (flayer.isDisplayed.data && this._z >= flayer.layerDef.minzoom) {
showCount += count
} else {
hiddenCount += count;
}
})
for (const tile of this._subtiles) {
if (tile === undefined) {
continue;
}
total += tile.totalValue
showCount += tile.showCount
hiddenCount += tile.hiddenCount
for (const key in tile.featureProperties) {
if (key.startsWith("layer:")) {
newMap.set(key, (newMap.get(key) ?? 0) + Number(tile.featureProperties[key] ?? 0))
}
}
}
this.totalValue = total
this.showCount = showCount
this.hiddenCount = hiddenCount
this._parent?.update()
if (total === 0) {
this.features.setData(TileHierarchyAggregator.empty)
} else {
this.featureProperties.count = "" + total;
this.featureProperties.kilocount = "" +Math.floor(total/1000);
this.featureProperties.kilocount = "" + Math.floor(total / 1000);
this.featureProperties.showCount = "" + showCount
this.featureProperties.totalCount = "" + total
newMap.forEach((value, key) => {
this.featureProperties[key] = "" + value
})
this.features.data = this.featuresStatic
this.features.ping()
}
@ -137,49 +184,48 @@ export class TileHierarchyAggregator implements FeatureSource {
const subtileIndex = yDiff * 2 + xDiff;
if (this._subtiles[subtileIndex] === undefined) {
this._subtiles[subtileIndex] = new TileHierarchyAggregator(this, tileZ, tileX, tileY)
this._subtiles[subtileIndex] = new TileHierarchyAggregator(this, this._state, tileZ, tileX, tileY)
}
this._subtiles[subtileIndex].addTile(source)
}
this.updateSignal.setData(source)
}
public static createHierarchy() {
return new TileHierarchyAggregator(undefined, 0, 0, 0)
public static createHierarchy(state: { filteredLayers: UIEventSource<FilteredLayer[]> }) {
return new TileHierarchyAggregator(undefined, state, 0, 0, 0)
}
private visitSubTiles(f : (aggr: TileHierarchyAggregator) => boolean){
private visitSubTiles(f: (aggr: TileHierarchyAggregator) => boolean) {
const visitFurther = f(this)
if(visitFurther){
if (visitFurther) {
this._subtiles.forEach(tile => tile?.visitSubTiles(f))
}
}
getCountsForZoom(clusteringConfig: {maxZoom: number}, locationControl: UIEventSource<{ zoom : number }>, cutoff: number = 0) : FeatureSource{
getCountsForZoom(clusteringConfig: { maxZoom: number }, locationControl: UIEventSource<{ zoom: number }>, cutoff: number = 0): FeatureSource {
const self = this
const empty = []
return new StaticFeatureSource(
locationControl.map(loc => loc.zoom).map(targetZoom => {
if(targetZoom-1 > clusteringConfig.maxZoom){
return empty
const features = locationControl.map(loc => loc.zoom).map(targetZoom => {
if (targetZoom - 1 > clusteringConfig.maxZoom) {
return empty
}
const features = []
self.visitSubTiles(aggr => {
if (aggr.showCount < cutoff) {
return false
}
const features = []
self.visitSubTiles(aggr => {
if(aggr.totalValue < cutoff) {
return false
}
if(aggr._z === targetZoom){
features.push(...aggr.features.data)
return false
}
return aggr._z <= targetZoom;
})
return features
if (aggr._z === targetZoom) {
features.push(...aggr.features.data)
return false
}
return aggr._z <= targetZoom;
})
, true);
return features
}, [this.updateSignal.stabilized(500)])
return new StaticFeatureSource(features, true);
}
}
@ -209,14 +255,11 @@ class SingleTileCounter implements Tiled {
const layer = source.layer.layerDef
this.registeredLayers.set(layer.id, layer)
const self = this
source.features.map(f => {
const isDisplayed = source.layer.isDisplayed.data
self.countsPerLayer.data.set(layer.id, isDisplayed ? f.length : 0)
self.countsPerLayer.ping()
}, [source.layer.isDisplayed])
}
}