What happened to the geometryType enum in 200.0?

GBreen

In 100.0 you could decide the type of a geometry via a GeometryType enum, but that doesn't seem to exist in 200.0.

Ting

Hope you don't mind, I moved this question to the new Swift Maps SDK Questions forum.

In 200.x we get rid of the previous geometryType property of a geometry, and rely on the metatype of a type, to better follow Swift conventions. Metatypes are used extensively throughout the standard library.

Below is the comparison between the old and new way.

 

// 100.x
switch geometryType {
case .point: return "Point"
case .polyline: return "Polyline"
case .polygon: return "Polygon"
default:
    return nil
}

// 200.x
switch geometry {
case is Point: return "Point"
case is Polyline: return "Polyline"
case is ArcGIS.Polygon: return "Polygon"
default:
    return nil
}

// or sth like…
let geometryType: Geometry.Type = ...
switch geometryType {
case is Point.Type:
    print("Point!")
default:
    print("Not Point.")
}

 

• A 100.x sample snippet that shows how to switch the geometryType property
• A 200.x sample snippet that shows how to add a convenience extension to the Geometry type to decide what specific geometry it is
• Here is a Stack Overflow thread that discusses various type casting strategies for a Swift enum
• Type Casting from Swift.org doc