Agregar GeoJSON a Leaflet

Question

Aquí hay una demostración de 2 formas de agregar GeoJSON a un mapa web Leaflet: http://codepen.io/pmckinney/pen/mELyNY

Sé que también existe el plugin Leaflet-AJAX.

Y si te interesa convertir un shapefile o feature class a GeoJSON, revisa el ArcToolbox de City of Philadelphia.

¿Alguien sabe por qué la salida de la herramienta de conversión JSON de ArcGIS Desktop no funciona en Leaflet? Siempre me he preguntado qué está pasando con esto.

JohnGravois · Answer

I reproed the error you're reporting in ArcGIS Pro 2.2.2 and forwarded on the report to the appropriate team. Sorry for the inconvenience.

* Create a wkid:3857 feature class and add a few points to it.
* Open the ‘Features to JSON’ tool. Check the ‘Output to GeoJSON’ and ‘Project to WGS_1984’.
* Inspect the output file in a text editor. The CRS is labeled as “EPSG:4326” but the coordinates are still northings and eastings.

pmckinney · Answer

Paul Brown‌, while I can't speak to what's going on with ArcGIS Pro, you could check out the Arc Open Tool to convert shapefiles/feature classes to GeoJSON using ArcGIS Desktop (ArcMap/Catalog).  Maybe you can use this tool while you await resolution with the ArcGIS Pro stuff?

PaulBrown · Answer

That is how Pro created the GEO JSON.  Even though it says it is supposed to be WGS84, it is Web Mercator.  Ended up projecting the feature class to WGS84 and then telling it to use the original SR.  I think this might be a bug or something in Pro.