I am comfortable creating maps with lat and long coordinates. But I don’t understand how the GeoJson option works. What values does my json column need?
Hi Diana - Welcome to the community!
Similar to lat and long the GeoJson format contains coordinate values inside a JSON blob. GeoJSON is generally more descriptive and contains other map properties in addition to simple coordinates. As GeoJSON is essentially JSON format Sigma is able to properly read through it and plot the corresponding coordinates on the map chart. At a minimum a GeoJSON value would need to have the coordinates key present.
I know this is an old post, but here are pretty nice and easy instructions to finding geojson maps you might need and how to get them in the right format. US-Canada Map / Leonel Galán / Observable