geo.io — factual/geo 3.0.1

Helper functions for converting JTS geometries to and from various geospatial IO formats (geojson, wkt, wkb).

feature-list clj

(feature-list features)

GeoJSONFeatures clj protocol

to-features clj

(to-features this)

GeoJSONGeometry clj protocol

read-geometry clj

(read-geometry this)

parse-geojson clj

(parse-geojson geojson)

Parse a geojson using GeoJSONFactory's create

properties clj

(properties feature)

read-geojson clj

(read-geojson geojson)

(read-geojson geojson srid)

Parse a GeoJSON string into a sequence of maps representing GeoJSON "Features".

These will contain a :geometry key containing a JTS geometry and a :features key containing a (possibly empty) map of features.

(read-geojson "{"type":"Polygon","coordinates":[[[-70.0024,30.0019],[-70.0024,30.0016],[-70.0017,30.0016],[-70.0017,30.0019],[-70.0024,30.0019]]]}") => [{:properties {}, :geometry #object[org.locationtech.jts.geom.Polygon(...)]}]

(read-geojson "{"type":"Feature","geometry":{"type":"Point","coordinates":[0.0,0.0]},"properties":{"name":"null island"}}") => [{:properties {:name "null island"} :geometry #object[org.locationtech.jts.geom.Point(...)]}]

(read-geojson "{"type":"FeatureCollection","features":[{"type":"Feature","geometry":{"type":"Point","coordinates":[0.0,0.0]},"properties":{"name":"null island"}}]}") => [{:properties {:name "null island"}, :geometry #object[org.locationtech.jts.geom.Point(...)]}]

read-geojson-geometry clj

(read-geojson-geometry geojson)

(read-geojson-geometry geojson srid)

Parse a GeoJSON string representing a single Geometry into a JTS Geometry.

read-wkb clj

(read-wkb bytes)

(read-wkb bytes srid)

Read a WKB byte array and convert to a Geometry. Can optionally pass in SRID. Defaults to WGS84

read-wkb-hex clj

(read-wkb-hex s)

(read-wkb-hex s srid)

Read a WKB hex string and convert to a Geometry

read-wkt clj

(read-wkt wkt)

(read-wkt wkt srid)

Read a WKT string and convert to a Geometry. Can optionally pass in SRID. Defaults to WGS84

to-ewkb clj

(to-ewkb shapelike)

to-ewkb-hex clj

(to-ewkb-hex shapelike)

Write an EWKB as a hex string, including any SRID

to-geojson clj

(to-geojson shapelike)

to-geojson-feature clj

(to-geojson-feature feature-map)

to-geojson-feature-collection clj

(to-geojson-feature-collection feature-maps)

to-wkb clj

(to-wkb shapelike)

Write a WKB, excluding any SRID

to-wkb-hex clj

(to-wkb-hex shapelike)

Write a WKB as a hex string, excluding any SRID

to-wkt clj

(to-wkt shapelike)