elm-wkt

This library is a naive, incomplete, yet pragmatic implementation of (OGC 06-103r4 version 1.2.1)[http://www.opengeospatial.org/standards/sfa]. As such, and as it stands now, it is solely intended for conversion between itself and GeoJSON.

Install

Not yet published as an elm package. Stay tuned...

Test

npm install
npm run test

Usage

Read WKT into GeoJson Geometries

import WellKnown exposing (read)

wkt = "GEOMETRYCOLLECTION (POINT (4 6), LINESTRING (4 6, 7 10))"

geometry : Result String Geometry
geometry =
    read wkt

Write GeoJson Geometries to a WKT String

import WellKnown exposing (write)

geometry : Geometry
geometry = 
    GeometryCollection
        [ Point ( 4.0, 6.0, 0.0 )
        , LineString [ ( 4.0, 6.0, 0.0 ), ( 7.0, 10.0, 0.0 ) ]
        ]

wkt : String
wkt =
    write geometry