get_epqs {elevatr} | R Documentation |
Get point elevation data from the USGS Elevation Point Query Service
Description
Function for accessing elevation data from the USGS epqs
Usage
get_epqs(
locations,
units = c("meters", "feet"),
ncpu = future::availableCores() - 1,
serial = NULL
)
Arguments
locations |
A SpatialPointsDataFrame of the location(s) for which you wish to return elevation. The first column is Longitude and the second column is Latitude. |
units |
Character string of either meters or feet. Conversions for 'epqs' are handled by the API itself. |
ncpu |
Number of CPU's to use when downloading epqs data. |
serial |
Logical to determine if API should be hit in serial or in parallel. TRUE will use purrr, FALSE will use furrr. |
Value
a list with a SpatialPointsDataFrame or sf POINT or MULTIPOINT object with elevation added to the data slot and a character of the elevation units
[Package elevatr version 0.99.0 Index]