lawn_distance: Distance between two points

In lawn: Client for 'Turfjs' for 'Geospatial' Analysis

Description

Calculates the distance between two data-Points in degress, radians, miles, or kilometers. Uses the Haversine formula to account for global curvature.

Usage

lawn_distance(from, to, units = "kilometers", lint = FALSE)

Arguments

from	Origin data-Feature<(data-Point)>
to	Destination data-Feature<(data-Point)>
units	(character) Can be degrees, radians, miles, or kilometers (default).
lint	(logical) Lint or not. Uses geojsonhint. Takes up increasing time as the object to get linted increases in size, so probably use by default for small objects, but not for large if you know they are good geojson objects. Default: FALSE

Value

Single numeric value

See Also

Other measurements: lawn_along(), lawn_area(), lawn_bbox_polygon(), lawn_bbox(), lawn_bearing(), lawn_center_of_mass(), lawn_center(), lawn_centroid(), lawn_destination(), lawn_envelope(), lawn_extent(), lawn_line_distance(), lawn_midpoint(), lawn_point_on_feature(), lawn_pt2line_distance(), lawn_square()

Examples

from <- '{
 "type": "Feature",
 "properties": {},
 "geometry": {
   "type": "Point",
   "coordinates": [-75.343, 39.984]
 }
}'
to <- '{
  "type": "Feature",
  "properties": {},
  "geometry": {
    "type": "Point",
    "coordinates": [-75.534, 39.123]
  }
}'
lawn_distance(from, to)

Example output

[1] 97.15958

lawn documentation built on Jan. 6, 2021, 5:07 p.m.