Openrouteservice Elevation

Get elevation data for points or lines

ors_elevation(
  format_in = c("geojson", "point", "polyline", "encodedpolyline", "encodedpolyline6"),
  geometry,
  format_out = format_in,
  ...,
  api_key = ors_api_key(),
  output = c("parsed", "text", "sf")
)

Arguments

format_in	input format
geometry	longitude, latitude coordinate pairs
format_out	output format
...	Optional parameters as described here
api_key	Character scalar containing openrouteservice API key
output	Output format. By default the response is being parsed to a list-based R object

Value

3D point or line geometry structured according to output:

• for "text", a character vector of length 1 re-encoded to UTF-8.

• for "parsed", a parsed R object.

• for "sf", a simple features sf object.

Details

A GeoJSON based service to query SRTM elevation for Point or LineString 2D geometries and return 3D geometries in various formats.

Author

Andrzej Oleś andrzej@openrouteservice.org

Examples

# point coordinates
coordinates <- c(13.349762, 38.11295)
ors_elevation("point", coordinates)
#> <ors_elevation>
#>  num [1:3] 13.3 38.1 38

# geojson as input
point <- '{ "type": "Point", "coordinates": [13.349762, 38.11295] }'
ors_elevation("geojson", point)
#> <ors_elevation>
#> List of 2
#>  $ coordinates: num [1:3] 13.3 38.1 38
#>  $ type       : chr "Point"

# line geometry returned as encoded polyline
coordinates <- list(
  c(13.349762, 38.11295),
  c(12.638397, 37.645772)
)
ors_elevation("polyline", coordinates, format_out = "encodedpolyline")
#> <ors_elevation>
#>  chr "}|rgF_knpAolFzfzA~|iCf{C"