geo.crs — factual/geo 3.0.0-rc-1

Helper functions for identifying and manipulating Coordinate Reference Systems.

create-transform clj

(create-transform c1 c2)

crs-factory clj

crs-name? clj

(crs-name? crs-str)

Check if input is a valid CRS name accepted by proj4j.

Accepted CRS names are in the forms: EPSG:xxxx, ESRI:xxxx, NAD83:xxxx, NAD27:xxx, or WORLD:xxxx.

ctf-factory clj

epsg-str->srid clj

(epsg-str->srid epsg)

Converts EPSG string to SRID, if possible.

epsg-str? clj

get-name clj

(get-name c)

Get the name of a coordinate reference system.

get-source-crs clj

(get-source-crs t)

Get the source coordinate reference system of a transform.

get-target-crs clj

(get-target-crs t)

Get the source coordinate reference system of a transform.

includes? clj

(includes? string substring)

proj4-str? clj

(proj4-str? crs-str)

Check if input appears to be a proj4 string

srid->epsg-str clj

Convert an SRID integer to EPSG string.

starts-with? clj

(starts-with? string prefix)

Transformable clj protocol

create-crs clj

(create-crs this)

Create a CRS system. If given an integer or long, assume it is an EPSG code. If given a valid CRS name or proj4 string, use that as the CRS identifier. If given a proj4j CoordinateReferenceSystem, return that.

get-srid clj

(get-srid this)

Attempt to get the SRID for a CRS identifier. If unable, return 0.

valid-crs-prefixes clj