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Download button: take advantage of MVT server, download button will now attempt to download everything

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This commit is contained in:
Pieter Vander Vennet 2024-02-21 16:35:49 +01:00
parent bccda67e1c
commit e4eb8d6b52
21 changed files with 453 additions and 353 deletions
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52
src/Logic/FeatureSource/TiledFeatureSource/LineSourceMerger.ts
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@ -1,30 +1,31 @@
import { FeatureSourceForTile } from "../FeatureSource"
import { FeatureSourceForTile, UpdatableFeatureSource } from "../FeatureSource"
import { Store } from "../../UIEventSource"
import { BBox } from "../../BBox"
import { Utils } from "../../../Utils"
import { Feature, LineString, MultiLineString, Position } from "geojson"
import { Tiles } from "../../../Models/TileRange"
import { Feature, MultiLineString, Position } from "geojson"
import { GeoOperations } from "../../GeoOperations"
import DynamicTileSource from "./DynamicTileSource"
import { UpdatableDynamicTileSource } from "./DynamicTileSource"
/**
* The PolygonSourceMerger receives various small pieces of bigger polygons and stitches them together.
* This is used to reconstruct polygons of vector tiles
*/
export class LineSourceMerger extends DynamicTileSource<FeatureSourceForTile> {
export class LineSourceMerger extends UpdatableDynamicTileSource<
FeatureSourceForTile & UpdatableFeatureSource
> {
private readonly _zoomlevel: Store<number>
constructor(
zoomlevel: Store<number>,
minzoom: number,
constructSource: (tileIndex: number) => FeatureSourceForTile,
constructSource: (tileIndex: number) => FeatureSourceForTile & UpdatableFeatureSource,
mapProperties: {
bounds: Store<BBox>
zoom: Store<number>
},
options?: {
isActive?: Store<boolean>
},
}
) {
super(zoomlevel, minzoom, constructSource, mapProperties, options)
this._zoomlevel = zoomlevel
@ -35,33 +36,30 @@ export class LineSourceMerger extends DynamicTileSource<FeatureSourceForTile> {
const all: Map<string, Feature<MultiLineString>> = new Map()
const currentZoom = this._zoomlevel?.data ?? 0
for (const source of sources) {
if(source.z != currentZoom){
if (source.z != currentZoom) {
continue
}
const bboxCoors = Tiles.tile_bounds_lon_lat(source.z, source.x, source.y)
const bboxGeo = new BBox(bboxCoors).asGeoJson({})
for (const f of source.features.data) {
const id = f.properties.id
const coordinates : Position[][] = []
if(f.geometry.type === "LineString"){
const coordinates: Position[][] = []
if (f.geometry.type === "LineString") {
coordinates.push(f.geometry.coordinates)
}else if(f.geometry.type === "MultiLineString"){
} else if (f.geometry.type === "MultiLineString") {
coordinates.push(...f.geometry.coordinates)
}else {
} else {
console.error("Invalid geometry type:", f.geometry.type)
continue
}
const oldV = all.get(id)
if(!oldV){
all.set(id, {
type: "Feature",
properties: f.properties,
geometry:{
type:"MultiLineString",
coordinates
}
})
if (!oldV) {
all.set(id, {
type: "Feature",
properties: f.properties,
geometry: {
type: "MultiLineString",
coordinates,
},
})
continue
}
oldV.geometry.coordinates.push(...coordinates)
@ -70,11 +68,13 @@ export class LineSourceMerger extends DynamicTileSource<FeatureSourceForTile> {
const keys = Array.from(all.keys())
for (const key of keys) {
all.set(key, <any> GeoOperations.attemptLinearize(<Feature<MultiLineString>>all.get(key)))
all.set(
key,
<any>GeoOperations.attemptLinearize(<Feature<MultiLineString>>all.get(key))
)
}
const newList = Array.from(all.values())
this.features.setData(newList)
this._featuresById.setData(all)
}
}