Calculate area & perimeter of a geojson feature of GeojsonLayer in deck.gl

Question

I am using deck.gl to render a geojsonlayer using their geojsonlayer function, where the source of data is a geojson file.

Now I want display an infowindow to show area & perimeter of each feature, when clicked on them on the map. I have managed to fetch the properties object of a particular feature and show its reverse geocode address and display them in the infoWindow (pic below),

which also gives me access to the geofence coordinates of that particular feature. But I am not able to find any function from the documentation that allows us to calculate the area. Is there anything I missed here? Or Do I have to calculate it manually based on cartesian space and spheroid?

Answer 1

我发现 turf.js 可以计算 geojson 特征的面积和周长。