topic Re: Change the default vector map projection to 4326 in Open Source Mapping Libraries Ques.

Change the default vector map projection to 4326

acherniavskyi — Fri, 25 Aug 2023 19:37:05 GMT

Hi, I am using `esri-leaflet` library and wondering if it is possible to change the default projection to EPSG4326 without using GP server and tile layers? As I understood the default projection of vector basemap layer is 3857. The thing is I want to use vector layer that is transformed to different projection. Maybe something like this?

L.esri.Vector.vectorBasemapLayer("arcgis/oceans/base", { apikey: apiKey, projection: ..., }).addTo(map);

If it is not possible maybe there are some ArcGIS GP servers that can provide different projections? Where may I find the list of such servers?

Re: Change the default vector map projection to 4326

GavinRehkemper — Wed, 20 Sep 2023 13:11:42 GMT

Hi, thanks for the question. We do have a few samples showing different projections, but please note the cautionary statement from these pages:

This demo should be implemented at your own risk. Esri Leaflet only supports tiles that have been published in Web Mercator Auxiliary Sphere tiling scheme (WKID 102100/3857). Strong knowledge of projections, spatial references and tiling schemes is required for this.