62 lines
2.2 KiB
TypeScript
62 lines
2.2 KiB
TypeScript
import * as $ from "jquery"
|
|
import * as OsmToGeoJson from "osmtogeojson";
|
|
import Bounds from "../../Models/Bounds";
|
|
import {TagsFilter} from "../TagsFilter";
|
|
|
|
/**
|
|
* Interfaces overpass to get all the latest data
|
|
*/
|
|
export class Overpass {
|
|
private _filter: TagsFilter
|
|
public static testUrl: string = null
|
|
private readonly _extraScripts: string[];
|
|
|
|
constructor(filter: TagsFilter, extraScripts: string[]) {
|
|
this._filter = filter
|
|
this._extraScripts = extraScripts;
|
|
}
|
|
|
|
|
|
private buildQuery(bbox: string): string {
|
|
const filters = this._filter.asOverpass()
|
|
let filter = ""
|
|
for (const filterOr of filters) {
|
|
filter += 'nwr' + filterOr + ';'
|
|
}
|
|
for (const extraScript of this._extraScripts){
|
|
filter += '('+extraScript+');';
|
|
}
|
|
const query =
|
|
'[out:json][timeout:25]' + bbox + ';(' + filter + ');out body;>;out skel qt;'
|
|
return "https://overpass-api.de/api/interpreter?data=" + encodeURIComponent(query)
|
|
}
|
|
|
|
queryGeoJson(bounds: Bounds, continuation: ((any, date: Date) => void), onFail: ((reason) => void)): void {
|
|
|
|
let query = this.buildQuery("[bbox:" + bounds.south + "," + bounds.west + "," + bounds.north + "," + bounds.east + "]")
|
|
|
|
if (Overpass.testUrl !== null) {
|
|
console.log("Using testing URL")
|
|
query = Overpass.testUrl;
|
|
}
|
|
$.getJSON(query,
|
|
function (json, status) {
|
|
if (status !== "success") {
|
|
console.log("Query failed")
|
|
onFail(status);
|
|
return;
|
|
}
|
|
|
|
if (json.elements === [] && json.remarks.indexOf("runtime error") > 0) {
|
|
console.log("Timeout or other runtime error");
|
|
onFail("Runtime error (timeout)")
|
|
return;
|
|
}
|
|
// @ts-ignore
|
|
const geojson = OsmToGeoJson.default(json);
|
|
console.log("Received geojson", geojson)
|
|
const osmTime = new Date(json.osm3s.timestamp_osm_base);
|
|
continuation(geojson, osmTime);
|
|
}).fail(onFail)
|
|
}
|
|
}
|