opencage
Geocode with the OpenCage API, either from place name to longitude and latitude (forward geocoding) or from longitude and latitude to the name and address of the location (reverse geocoding).
Installation
Install the package with:
install.packages("opencage")Or install the development version using remotes with:
remotes::install_github("ropensci/opencage")Quickstart
For the best experience, we recommend that you read through the
“Introduction to opencage” vignette (vignette("opencage")), but if you
are in a hurry:
- Register at opencagedata.com/users/sign_up.
- Generate an API key at the OpenCage dashboard.
- Save your API key as an environment
variable like
OPENCAGE_KEY=yourkeyin.Renviron. Seehelp(oc_config)for alternative ways to set your OpenCage API key.
Now you are ready to turn place names into latitude and longitude coordinates:
library(opencage)
oc_forward_df(placename = "Sarzeau")| placename | oc_lat | oc_lng | oc_formatted |
|---|---|---|---|
| Sarzeau | 47.52877 | -2.7642 | 56370 Sarzeau, France |
Or turn a set of coordinates into the name and address of the location:
oc_reverse_df(latitude = 51.5034070, longitude = -0.1275920)| latitude | longitude | oc_formatted |
|---|---|---|
| 51.50341 | -0.127592 | Prime Minister’s Office, 10 Downing Street, Westminster, London, SW1A 2AA, United Kingdom |
But remember, the vignettes are really great! We have:
- “Introduction to opencage”
vignette("opencage") - “Customise your query”
vignette("customise_query") - “Output options”
vignette("output_options")
About OpenCage
The OpenCage API supports forward and reverse geocoding. Sources of OpenCage are open geospatial data including OpenStreetMap, DataScienceToolkit, GeoPlanet, Natural Earth Data, libpostal, GeoNames, and Flickr’s shapefiles plus a whole lot more besides. Refer to the current full list of credits.
Meta
- Please report any issues or bugs.
- License: GPL >= 2
- Get citation information for
opencagein R doingcitation(package = 'opencage') - Please note that this package is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.