...TypeScript definitions are packaged with each module. No DefinitelyTyped packages required. Turf uses GeoJSON for all geographic data. Turf expects the data to be standard WGS84 longitude, latitude coordinates. Check out geojson.io for a tool to easily create this data.
Designed to collect fisheries data linked to GPS coordinates from small fixed wing aircraft. SQL database runs on WinCE, Palm PDA & other platforms. Program was written using SuperWaba: a robust java-like development environment for handheld devices.