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How to use deck.gl to render a polygon layer that is using a different coordinate system than the standard LAT LONG?

Background
I am using deck.gl's PolygonLayer to render data that looks like this:
data.json:
{
"someKey": "someValue",
"spatialReference": {
"wkid": 23032,
},
"features": [
{
"attributes": {
"polygonName": "MY_POLYGON"
},
"geometry": {
"rings": [
[
[421334, 7240529], ...
],
[
[422656, 7250696], ...
]
]
}
}
]
}
Now, the problem is that decg.gl uses a latitude-longitude coordinate-system, which is different from what this polygon is expressed in.
Deck.GL documentation on rendering layers with different coordinate-systems
So, according to the documentation, deckGL renders each layer separately based on its coordinate system. Therefore, it was important to specify both coordinateOrigin and coordinateSystem props.
Understanding the coordinate system in data.json
So, as far as I understood, the spacialReference value in data.json represents an EPSG code. Using this website, I was able to find a value for the coordinateOrigin prop as [63.510617, 9.210989, 0]. As for the coordinateSystem prop, I used COORDINATE_SYSTEM.METER_OFFSETS. Here's the code:
PolygonLayer.tsx:
import React from "react";
import { COORDINATE_SYSTEM } from "#deck.gl/core/typed";
import { DeckLayer } from "#deck.gl/arcgis";
import { PolygonLayer } from "#deck.gl/layers/typed";
import MapView from "#arcgis/core/views/MapView";
import ArcGISMap from "#arcgis/core/Map";
import "#arcgis/core/assets/esri/themes/light/main.css";
export default function PolygonLayer({layerURL}) {
const mapRef = React.useState(null)
React.useEffect(() => {
fetch(layerURL)
.then(res => res.json())
.then(data => {
const blobURL = new Blob([JSON.stringify(data)], {type: "application/json",});
const url = URL.createObjectURL(blobURL); // this is needed for the layer
const layer = new PolygonLayer({
id: data["features"][0]["attributes"]["polygonName"], // correctly defined
data: url,
filled: true,
getLineWidth: 3,
getLineColor: [255, 255, 255, 0],
getFillColor: [234, 243, 221, 0],
coordinateOrigin: [63.510617, 9.210989, 0], // based on the explanation above
coordinateSystem: COORDINATE_SYSTEM.METER_OFFSETS,
getPolygon: (d) => {
console.log(d); // doesn't log anything
return d.features[0].geometry.rings;
},
});
const deckLayer = new DeckLayer({
"deck.layers": [layer],
});
const arcgisMap = new ArcGISMap({
basemap: "topo-vector",
layers: [deckLayer]
});
new MapView({
container: mapRef?.current,
map: arcgisMap,
center: data["features"][0]["geometry"]["rings"][0][0], // correctly defined
zoom: 9
});
})
.catch(err => console.log(err));
}, [layerURL]);
return <div ref={mapRef} style={{height: "90vh", width: "100%"}}></div>
}
The issue with this code
The problem with this code is that it doesn't render the layer (or the base map) and there's nothing logged in the console for the value of d; as mentioned in the code above.
Making sure the code works
Now, just a sanity check, I have used this url which returns polygons data in the standard LAT LONG format, without using coordinateOrigin or coordinateSystem props as in this example and it worked. So the code is ok rendering LAT LONG system, but breaks when using METERS_OFFSET as in the code provided.
Therefore
Have I figured out the coordinateOrigin correctly? And how can I use this (or another type of) layer to render this data correctly? Any help is appreciated and apologies for the long question!

Error in Angular: earthquake_GeoJSONP.js:1 Uncaught ReferenceError: eqfeed_callback is not defined at earthquake_GeoJSONP.js:1:1

I'm trying to replicate the Importing Data into Maps (Importing Data into Maps) example to my angular project but I get the following error in console:
earthquake_GeoJSONP.js:1 Uncaught ReferenceError: eqfeed_callback is not defined
at earthquake_GeoJSONP.js:1:1
app.component.ts
import { Component, OnInit } from '#angular/core';
import { Loader } from "#googlemaps/js-api-loader"
#Component({
selector: 'app-root',
templateUrl: './app.component.html',
styleUrls: ['./app.component.css']
})
export class AppComponent implements OnInit{
title = 'map';
ngOnInit() {
let map: google.maps.Map;
const loader = new Loader({
apiKey: "YOUR_API_KEY"
});
loader.load().then(() => {
const map = new google.maps.Map(document.getElementById("map") as HTMLElement, {
zoom: 2,
center: new google.maps.LatLng(2.8, -187.3),
mapTypeId: "terrain",
});
// map.data.loadGeoJson('data.json');
// Create a <script> tag and set the USGS URL as the source.
const script = document.createElement("script");
// This example uses a local copy of the GeoJSON stored at
// http://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/2.5_week.geojsonp
script.src =
"https://developers.google.com/maps/documentation/javascript/examples/json/earthquake_GeoJSONP.js";
document.getElementsByTagName("head")[0].appendChild(script);
const eqfeed_callback = function (results: any) {
for (let i = 0; i < results.features.length; i++) {
const coords = results.features[i].geometry.coordinates;
const latLng = new google.maps.LatLng(coords[1], coords[0]);
let marker = new google.maps.Marker({
position: latLng,
map: map,
});
// place marker in map
marker.setMap(map)
}
};
});
}
}
app.component.html
<div id="map"></div>
app.component.css
#map {
height: 500px;
width: 100%;
}
Installed Packages
This is the googlemaps package that I installed in my project.
npm install #googlemaps/js-api-loader
npm i -D #types/google.maps
My Angular version
Angular CLI: 13.3.7
Node: 16.14.2
Package Manager: npm 8.5.0
OS: win32 x64
What my code shows
Just appear the map but without markers.
What I hope will appear
According to the Google Maps documentation at the following link: Importing Data into Maps
Thanks for your time and support!

I confirmed that your map appears but the markers don't.
Just like you said, what you want to happen is for the markers to show.
What I did is I tried to replicate your code in codesandbox and found out two main errors:
'map' is defined but never used. (#typescript-eslint/no-unused-vars)
'eqfeed_callback' is assigned a value but never used. (#typescript-eslint/no-unused-vars)
Solutions:
Error #1: app.component.ts had an unused variable of map and it looks like this in your code:
ngOnInit() {
let map: google.maps.Map;
const loader = new Loader({
apiKey: "YOUR_API_KEY"
});
loader.load().then(() => {
const map = new google.maps.Map(document.getElementById("map") as HTMLElement, {
zoom: 2,
center: new google.maps.LatLng(2.8, -187.3),
mapTypeId: "terrain",
});
the map variable inside the loader.load().then is the one you used and the one on top is the unused which caused error #1. I just removed it and it removed the error on the console.
Error #2: your code had a variable eqfeed_callback that stored a function but was not called. I compared your code to the sample you gave here and confirmed that there was a callback on the code there.
As I am not very familiar to typescript and angular I tried experimenting on the code and made it work by making the end part of your code look like this:
const eqfeed_callback = function (results: any) {
for (let i = 0; i < results.features.length; i++) {
const coords = results.features[i].geometry.coordinates;
const latLng = new google.maps.LatLng(coords[1], coords[0]);
let marker = new google.maps.Marker({
position: latLng,
map: map
});
// place marker in map
marker.setMap(map);
}
};
window.eqfeed_callback = eqfeed_callback;
});
}
}
I just inserted window.eqfeed_callback = eqfeed_callback and it made the error disappear and at the same time show the markers on the map.
Here's the sandbox link: https://codesandbox.io/s/holy-sound-p8qtrc
Just use your own API key.
I hope this helps.

Angular + Leaflet + Leaflet Extra Markers

I'm making SPA website based on net.core 3 and Angular 8 with Leaflet. I wanted to use Leaflet Extra Markers but can't get this thing to work.
I used NPM to install Extra Markers:
https://www.npmjs.com/package/leaflet-extra-markers
npm i leaflet-extra-markers
So far so good. I create component - map.component.ts and below is the code. As long as I use Leaflet only everything is working fine. But then I try to add marker using Extra Markers and getting
TypeError: Cannot read property 'icon' of undefined.
I guess I'm missing something super simple but can't figure it out. Looks like Extramarkers does not extend Leaflet class? I don't know why...
Any help will be much appreciated.
import { AfterViewInit, Component } from '#angular/core';
import * as L from 'leaflet';
import { IMapObject } from '../models/map.model';
#Component({
selector: 'app-map',
templateUrl: './map.component.html',
styleUrls: ['./map.component.css']
})
export class MapComponent implements AfterViewInit {
private map;
private mapObjects: IMapObject[] = [];
constructor() { }
ngAfterViewInit(): void {
this.initMap();
}
private initMap(): void {
this.map = L.map('map',
{
center: [52.246215, 21.223158],
zoom: 18
});
const tiles = L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
{
maxZoom: 19,
attribution: '© OpenStreetMap'
});
tiles.addTo(this.map);
this.createDummyMapObjects();
this.mapObjects.map(o => {
L.marker(o.position.latlon, { title: o.name, icon: greenIcon }).addTo(this.map).bindPopup(o.description);
});
// This is not working. Getting ERROR TypeError: Cannot read property 'icon' of undefined
const redMarker = L.ExtraMarkers.icon({
icon: 'fa-coffee',
markerColor: 'red',
shape: 'square',
prefix: 'fa'
});
L.marker([51.941196, 4.512291], { icon: redMarker }).addTo(this.map);
}
private createDummyMapObjects(): void {
const obj1: IMapObject = {
id: 1,
name: 'Test',
category: 2,
description: 'Test',
position: {
latlon: new Array(52.241103, 21.190475)
}
}
const obj2: IMapObject = {
id: 1,
name: 'Test',
category: 2,
description: 'Test',
position: {
latlon: new Array(52.243149, 21.190883)
}
}
this.mapObjects.push(obj1, obj2);
}
}
EDIT: I followed advice and added script and json path to angular.json file. Now I'm getting:
Uncaught ReferenceError: L is not defined
at leaflet.extra-markers.js:16
at leaflet.extra-markers.js:13
at leaflet.extra-markers.js:14
Looks like issue with import?

According to the documentation you need to include bootstrap version 3.3.7 and font-awesome version 5.12.0 respectively in your index.html
<link
rel="stylesheet"
href="//netdna.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"
/>
<!-- Font Awesome 5 SVG -->
<script
defer
src="https://use.fontawesome.com/releases/v5.12.0/js/all.js"
></script>
Make sure you include these in your ts or the last 2 in your angular.json:
import "leaflet/dist/leaflet.css";
import * as L from "leaflet";
import "leaflet-extra-markers/dist/css/leaflet.extra-markers.min.css";
import "leaflet-extra-markers/dist/js/leaflet.extra-markers.js";
Demo

Did you include stylesheet and script in angular json?
"scripts": [
"node_modules\leaflet-extra-markers\dist\js\leaflet.extra-markers.js"
],
styles": [
"styles.css",
"node_modules\leaflet-extra-markers\dist\css\leaflet.extra-markers.min.css"
],

My button onClick recenter for OpenLayers doesn't work

I'm building an angular application using openlayers that when I click a button it will recenter my map .I'm trying to re-center my map when I onClick to a button but it doesnt work.
ERROR TypeError: Cannot read property 'setCenter' of undefined.
Can someone tell me what I'm doing wrong. Thanks in advance !
import { Component } from '#angular/core';
import {fromLonLat} from 'ol/proj'
import {view} from 'ol/View';
import * as ol from 'openlayers';
export class AppComponent {
distance = 60;
points: Array<{ x: number; y: number; }> = [];
position : Array<{ x: number; y: number; id: string; radius: number,color:string, place:string}> =
[
{x:11.5820,y:48.1351,id:"munich",radius:20, color:"red", place:"m"},
{x:13.388866,y:52.517071,id:"berlin", radius:40,color:"blue", place:"b"},
];
coords = {
berlin: [13.388866, 52.517071]
};
onClick (city: string) {
view.setCenter({
center: fromLonLat(this.coords[city]),
duration: 2000
});
}
mapOnClick(evt) {
console.log(evt);
const map = evt.map;
// this bit checks if user clicked on a feature
const p = map.forEachFeatureAtPixel(evt.pixel,
function(feature, layer) {
console.log("got feature" + feature.getId());
return feature;
});
}
}
<button id='berlin' (click)="onClick('berlin')">Zoom to Berlin</button>

If you are trying to recenter there must already be a view, but if it was constructed inside the map constructor there won't be a view variable and you will need to reference it using map.getView(). Also setCenter() doesn't do animated recentering. Assuming your map variable is map try:
map.getView().animate({
center: fromLonLat(this.coords[city]),
duration: 2000
})

Lets try this once just for suggestion,
import OlView from 'ol/View';
view: OlView;
ngOnInit() {
this.view = new OlView({
center: fromLonLat(this.coords[city]),
zoom: 3
});
}
I hope its solve your problem if you received proper data for this.coords[city] variable. You need to pass data like this, center: fromLonLat([6.661594, 10.32371]).
For more Reference,
Use OpenLayers 4 with Angular 5
You may get some idea from this above url example.
Thanks,
Muthukumar

Mapbox style changes/breaks on zoom when a layer is added

I have a mapbox map, initialized with the outdoors-v9 style (tried other styles, same behavior). When I add a layer to the map - a marker or a geojson source and zoom the map, the style changes or breaks, I'm not sure which.
This is the map before the zoom
and after the zoom
here are the functions that init the map and add markers
mapboxgl.accessToken = "pk.*******";
buildMap: function() {
const _self = this;
_self.map = new mapboxgl.Map({
container: "map",
style: "mapbox://styles/mapbox/outdoors-v9",
center: [-95.712891, 37.09024],
zoom: 3
});
_self.map.on('load', function() {
_self.map.addSource('route', {
'type': 'geojson',
'data': {
"type": "FeatureCollection",
"features": []
}
});
_self.map.addLayer({
'id': 'route',
'source': 'route',
'type': 'line',
'layout': {
'line-join': 'round',
'line-cap': 'round'
},
'paint': {
'line-color': '#47576A',
'line-width': 3
}
});
});
}
...
const coords = [addressData.longitude, addressData.latitude];
const marker = new mapboxgl.Marker().setLngLat(coords).addTo(this.map);
I am using Vue.js to render the map. Mapbox version v0.45.0
Any help or leads are highly appreciated

Vue data() properties are reactive, they have getters and setters, so, when loading map object or adding vector tiles layer (geojson), Vue tries to add getters & setters to the map & map.layers which causes vue & vue-dev-tools to crash and mess up the map.
If you enable any raster layer, it would work successfully because raster tiles are loaded via the mapbox.css whereas vector tiles being geojson, are added to the map object.
Easiest solution would be to define a non-reactive variable in vue and then re-use it everywhere.
// edit: A correct/recommended way to set non-reactive data: GitHub link

Seems the issue was related with the fact that I'm pushing the marker instance to an observable (a vuejs data field). After pushing the marker instance to an array, the issue disappeared. This comment doesn't really answer why this happens, but hope it helps someone else that might face the same issue

I just faced this issue and realized that I didn't follow the documentation exactly as it was described (jumped right on to coding without reading properly). And the documentation says:
Storing Map object
Take note that it's generally bad idea to add to Vuex or component's
data anything but primitive types and plain objects. Vue adds getters
and setters to every property, so if you add Map object to Vuex store
or component data, it may lead to weird bugs. If you want to store map
object, store it as non-reactive property like in example below.
The problem was that I had also registered "map" inside the "data" object of my Vue component. But in the example code it's not declared in data, only in the "create" function.
https://soal.github.io/vue-mapbox/guide/basemap.html#map-loading

After hours spent on this problem, here is my working solution to access map instance from a store (thanks to https://github.com/vuejs/vue/issues/2637#issuecomment-331913620):
const state = reactive({
map: Object.freeze({ wrapper: /* PUT THE MAP INSTANCE HERE */ });
});
Here is an example with Vue Composition Api:
index.js
import { reactive, computed } from "#vue/composition-api";
export const state = reactive({
map: null
});
export const setMap = (map) => {
state.map = Object.freeze({ wrapper: map});
};
export const getMap = computed(() => state.map.wrapper);
export const initMap = (event) => {
setMap(event.map);
// now you can access to map instance from the "getMap" getter!
getMap.value.addSource("satellite-source", {
type: "raster",
url: "mapbox://mapbox.satellite",
});
getMap.value.addLayer({
id: "satellite-layer",
type: "raster",
source: "satellite-source"
});
};
App.vue
<template>
<MglMap :accessToken="..." :mapStyle="..." #load="onMapLoaded" />
</template>
<script>
import { defineComponent } from "#vue/composition-api";
import { MglMap } from "vue-mapbox";
import { initMap } from "./index.js";
export default defineComponent({
components: {
MglMap
},
setup() {
const onMapLoaded = (event) => {
initMap(event);
}
return { onMapLoaded };
}
});
</script>

I've got the same error.
This happens if you either put the map or the marker on an reactive vue.js instance.

Short and quick answer.
Explanation is similar to #mlb's answer. So you freeze the object to prevent the map from disorientated and for any actions done to the map, call back the data with an extra Object key which in case is 'wrapper'.
<template><MglMap :accessToken="..." :mapStyle="..." #load="onMapLoaded" /></template>
<script>
methods: {
onMapLoaded(event) {
this.mapboxEvent = Object.freeze({wrapper: event.map});
},
panMap(event) {
this.mapboxEvent.wrapper.panTo([lng, lat], {duration: 1000, zoom: 14});
}
}
</script>