openrouteservice (version 0.6.2)

ors_elevation: Openrouteservice Elevation

Description

Get elevation data for points or lines

Usage

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")
)

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.

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

Author

Andrzej Oleś

Details

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

Examples

# These examples might require interaction to query the local keyring, or
# might fail due to network issues, so they are not run by default
if (FALSE) {
# point coordinates
coordinates <- c(13.349762, 38.11295)
try( ors_elevation("point", coordinates) )

# geojson as input
point <- '{ "type": "Point", "coordinates": [13.349762, 38.11295] }'
try( ors_elevation("geojson", point) )

# line geometry returned as encoded polyline
coordinates <- list(
  c(13.349762, 38.11295),
  c(12.638397, 37.645772)
)
try( ors_elevation("polyline", coordinates, format_out = "encodedpolyline") )
}