googleway (version 2.2.0)

google_snapToRoads: Snap To Roads

Description

Takes up to 100 GPS coordinates collected along a route and returns a similar set of data, with the points snapped to the most likely roads the vehicle was treveling along

Usage

google_snapToRoads(df_path, lat = NULL, lon = NULL, interpolate = FALSE,
  simplify = TRUE, key)

Arguments

df_path

data.frame with at least two columns specifying the latitude & longitude coordinates, with a maximum of 100 pairs of coordinates.

lat

string specifying the column of df_path containing the 'latitude' coordinates. If left NULL, a best-guess will be made.

lon

string specifying the column of df_path containing the ' longitude' coordinates. If left NULL, a best-guess will be made.

interpolate

logical indicating whether to interpolate a path to include all points forming the full road-geometry. When TRUE, additional interpolated points will also be returned, resulting in a path that smoothly follows the geometry of the road, even around corners and through tunnels. Interpolated paths will most likely contain more ponts that the original path.

simplify

logical - TRUE indicates the returned JSON will be coerced into a list. FALSE indicates the returend JSON will be returned as a string

key

string A valid Google Developers Places API key

See Also

google_nearestRoads

Examples

key <- 'your_api_key'

df_path <- read.table(text = "lat lon
-35.27801 149.12958
-35.28032 149.12907
-35.28099 149.12929
-35.28144 149.12984
-35.28194 149.13003
-35.28282 149.12956
-35.28302 149.12881
-35.28473 149.12836", header = T)

google_snapToRoads(df_path, key = key, interpolate = TRUE, simplify = TRUE)