table_getDistanceFromTarget: Return distances and directions from a target location to...
In MazamaScience/MazamaLocationUtils: Manage Spatial Metadata for Known Locations

View source: R/table_getDistanceFromTarget.R

table_getDistanceFromTarget

R Documentation

Return distances and directions from a target location to known locations

Description

Returns a tibble with the same number of rows as locationTbl containing the distance and direction from the target location specified by longitude and latitude to each known location found in locationTbl.

Usage

table_getDistanceFromTarget(
  locationTbl = NULL,
  longitude = NULL,
  latitude = NULL,
  measure = c("geodesic", "haversine", "vincenty", "cheap")
)

Arguments

`locationTbl`	Tibble of known locations.
`longitude`	Target longitude in decimal degrees E.
`latitude`	Target latitude in decimal degrees N.
`measure`	One of "geodesic", "haversine", "vincenty" or "cheap" specifying desired method of geodesic distance calculation.

Value

Tibble of distances in meters and cardinal directions from a target location.

Note

Only a single target location is allowed.

Examples

library(MazamaLocationUtils)

locationTbl <- get(data("wa_monitors_500"))

locationTbl %>%
  table_getDistanceFromTarget(
    longitude = -117.3647, 
    latitude = 47.6725
  ) %>% 
  dplyr::glimpse()

MazamaScience/MazamaLocationUtils documentation built on Dec. 8, 2024, 4:56 p.m.