lawn (version 0.1.7)

georandom: Return a FeatureCollection with N number of features with random coordinates

Description

Return a FeatureCollection with N number of features with random coordinates

Usage

gr_point(n = 10, bbox = NULL)
gr_position(bbox = NULL)
gr_polygon(n = 1, vertices = 10, max_radial_length = 10, bbox = NULL)

Arguments

n

(integer) Number of features to create. Default: 10 (points), 1 (polygons)

bbox

(numeric) A bounding box of length 4, of the form west, south, east, north order. By default, no bounding box is passed in.

vertices

(integer) Number coordinates each Polygon will contain. Default: 10

max_radial_length

(integer) Maximum number of decimal degrees latitude or longitude that a vertex can reach out of the center of the Polygon. Default: 10

Value

A data-FeatureCollection for point and polygon, or numeric vector for position.

Details

These functions create either random points, polygons, or positions (single long/lat coordinate pairs).

References

https://github.com/mapbox/geojson-random

See Also

lawn_random

Examples

# Random points
gr_point(5)
gr_point(10)
gr_point(1000)
## with bounding box
gr_point(5, c(50, 50, 60, 60))

# Random positions
gr_position()
## with bounding box
gr_position(c(0, 0, 10, 10))

# Random polygons
## number of polygons, default is 1 polygon
gr_polygon()
gr_polygon(5)
## number of vertices, 3 vs. 100
gr_polygon(1, 3)
gr_polygon(1, 100)
## max radial length, compare the following three
gr_polygon(1, 10, 5)
gr_polygon(1, 10, 30)
gr_polygon(1, 10, 100)
## use a bounding box
gr_polygon(1, 5, 5, c(50, 50, 60, 60))