com.michaelgaare.clojure-polyline — io.jesi/clojure-polyline 0.4.1

Functions to encode and decode Google polyline algorithm.

compress clj/s

(compress rf)

Transducer that compresses polyline coordinates by turning them into deltas from the previous coord.

coord->integer clj/s

(coord->integer coord)

Returns the coord (a double) multiplied by 100,000 and rounded to nearest integer.

decode clj/s

(decode polystring)

Takes a polyline-encoded string and returns a collection of decoded [lat long] coordintes.

decoder clj/s

Transducer stack for decoding.

decompress clj/s

(decompress rf)

Transducer that decompresses polyline coordinates that have been compressed by turning them into deltas from the previous coord.

encode clj/s

(encode coords)

Main polyline encoding function. Takes a collection of [lat long] tuples and returns the polyline encoded string representation.

encode-coord clj/s

(encode-coord x)

Returns the polyline encoded string of given coordinate (a double between -180 and 180).

encoder clj/s

Transducer stack for encoding.

integers->coord clj/s

(integers->coord [lat lon :as integers])

Returns the coord (a pair of doubles) divided by 100,000.

latlon clj/s

(latlon [lon lat :as coord])

Converts a coordinate in [lon lat] format to [lat lon].

lonlat clj/s

(lonlat [lat lon :as coord])

Converts a coordinate in [lat lon] format to [lon lat].

poly-number clj/s

(poly-number rf)

Transducer that transforms characters from a polyline string into the raw decoded numbers, without double or negative conversion.

precision clj/s

round clj/s

(round v)