A Go library for working with Placekeys. This is an unofficial port of the Python library placekey-py and is not affiliated with the Placekey project.
This library port is mostly complete. A client interface to the Placekeys API is also included. Some geospatial features are currently under development, namely getting a Placekey from a Polygon, WKT or GeoJSON.
This library depends on uber/h3-go and inherits the same prerequisites. It requires CGO (CGO_ENABLED=1) in order to be built.
If you see errors/warnings like "build constraints exclude all Go files...", then the cgo build constraint is likely disabled; try setting CGO_ENABLED=1 environment variable for your build step.
go get github.com/engelsjk/placekey-goimport "github.com/engelsjk/placekey-go"
func ExampleFromGeo() {
placekey.FromGeo(37.23712, -115.80187)
// Output:
// @5ys-rsx-4jv
}
func ExampleToH3() {
placekey.ToH3("@5yv-j8h-3nq")
// Output:
// 8a2986b843b7fff
}
func ExampleDistance() {
placekey.Distance("@5ys-rsx-4jv", "@5yv-j8h-3nq")
// Output:
// 138681.552855
}
func ExampleGeoJSON() {
placekey.ToGeoJSON("@5yv-j8h-3nq")
// Output:
// {"type":"Feature","geometry":{"type":"Polygon","coordinates":[...]},"properties":null}
}
func ExampleDistance() {
placekey.ToWKT("@5yv-j8h-3nq")
// Output:
// POLYGON(...)
}