WorldWind Kotlin/earth.worldwind.formats.shapefile/PrjFile

PrjFile

Projection (.prj) parser. Distinguishes geographic and projected coordinate systems via OGC well-known text. For projected systems we recognize the UTM family — the only projection commonly distributed with raw shapefiles — and expose a Projection that can convert easting/northing pairs into lon/lat. Other projected systems are flagged as projected-but-unsupported; callers can treat coordinates as geographic at their own risk.

Constructors

PrjFile

constructor(text: String)

Types

Companion

object Companion

CoordinateSystem

enum CoordinateSystem : Enum<PrjFile.CoordinateSystem>

Projection

sealed class Projection

Transform a shapefile X/Y pair into geographic longitude/latitude in degrees. The input pair is (easting, northing) for projected files and (longitude, latitude) for geographic files.

Properties

coordinateSystem

val coordinateSystem: PrjFile.CoordinateSystem

isGeographicCoordinateSystem

val isGeographicCoordinateSystem: Boolean

isKnownCoordinateSystem

val isKnownCoordinateSystem: Boolean

isProjectedCoordinateSystem

val isProjectedCoordinateSystem: Boolean

isUnknownCoordinateSystem

val isUnknownCoordinateSystem: Boolean

projection

val projection: PrjFile.Projection

Coordinate transform implied by this .prj. Always non-null after construction: geographic systems get a Projection.Geographic that just normalizes lon/lat; UTM systems get a Projection.Utm; everything else gets Projection.Unknown that leaves coords untouched.

text

val text: String

utmHemisphere

val utmHemisphere: Hemisphere?

Hemisphere parsed from the WKT, or null if this PRJ isn't UTM.

utmZone

val utmZone: Int?

UTM zone parsed from the WKT, or null if this PRJ isn't UTM.