This library provides a reader/writer for GeoJSON to Spray JSON.
If you use SBT you just include de follow dependency.
libraryDependencies += "br.ufla" %% "spray-json-jts" % "1.0.0"This library is available at my bintray repository:
https://dl.bintray.com/rthoth/releases
After that you only need import the follow code:
import spray.json.geojson.GeoJSON._And then to provide an implicit com.vividsolutions.jts.geom.GeometryFactory, for example:
import spray.json.geojson.GeoJSON._
import com.vividsolutions.jts.geom._
import spray.json._
object Example extends App {
implicit val geometryFactory = new GeometryFactory()
val geoJson = """
{
"type": "LineString",
"coordinates": [[1, 1], [5, 5], [10, 10], [-1, -1]]
}
"""
val lineString = geoJson.parseJson.convertTo[Geometry]
// prints LINESTRING (1 1, 5 5, 10 10, -1 -1)
println(lineString.toText())
// If you want typed geometries, no problem!
val point = """{"type": "Point", "coordinates": [-45, -21]}""".parseJson.convertTo[Point]
// prints POINT(-45 -21)
println(point)
}OK, it's a simple library.