ajholguin / randgeo

random WKT or GeoJSON

randgeo: random WKT and GeoJSON

randgeo generates random points and shapes in GeoJSON and WKT formats for use in examples, teaching, or statistical applications.

Points and shapes are generated in the long/lat coordinate system and with appropriate spherical geometry; random points are distributed evenly across the globe, and random shapes are sized according to a maximum great-circle distance from the center of the shape.

randgeo was adapted from https://github.com/tmcw/geojson-random to have a pure R implementation without any dependencies as well as appropriate geometry. Data generated by randgeo may be processed or displayed of with packages such as sf, wicket, geojson, wellknown, geojsonio, or lawn.

Package API:

• rg_position - random position (lon, lat)
• geo_point - random GeoJSON point
• geo_polygon - random GeoJSON polygon
• wkt_point - random WKT point
• wkt_polygon - random WKT polygon

Docs

https://ropensci.github.io/randgeo/

Install

Stabler CRAN version

install.packages("randgeo")

Development version

devtools::install_github("ropensci/randgeo")

library("randgeo")

Generate a random position

rg_position()
#> [[1]]
#> [1]  -2.016032 -25.598715

Genrate random GeoJSON

Random point - evenly distributed across the sphere. The bbox option allows you to limit points to within long/lat bounds.

geo_point()
#> $type
#> [1] "FeatureCollection"
#> 
#> $features
#> $features[[1]]
#> $features[[1]]$type
#> [1] "Feature"
#> 
#> $features[[1]]$geometry
#> $features[[1]]$geometry$type
#> [1] "Point"
#> 
#> $features[[1]]$geometry$coordinates
#> [1] -28.022568   4.234356
#> 
#> 
#> $features[[1]]$properties
#> list()
#> 
#> 
#> 
#> attr(,"class")
#> [1] "geo_list"

Random polygon - centered on a random point, with default maximum size

geo_polygon()
#> $type
#> [1] "FeatureCollection"
#> 
#> $features
#> $features[[1]]
#> $features[[1]]$type
#> [1] "Feature"
#> 
#> $features[[1]]$geometry
#> $features[[1]]$geometry$type
#> [1] "Polygon"
#> 
#> $features[[1]]$geometry$coordinates
#> $features[[1]]$geometry$coordinates[[1]]
#> $features[[1]]$geometry$coordinates[[1]][[1]]
#> [1] 89.586114  4.459564
#> 
#> $features[[1]]$geometry$coordinates[[1]][[2]]
#> [1] 93.2320981  0.7372066
#> 
#> $features[[1]]$geometry$coordinates[[1]][[3]]
#> [1] 87.348512 -4.829574
#> 
#> $features[[1]]$geometry$coordinates[[1]][[4]]
#> [1]  83.52545 -10.39727
#> 
#> $features[[1]]$geometry$coordinates[[1]][[5]]
#> [1] 83.575987 -3.642733
#> 
#> $features[[1]]$geometry$coordinates[[1]][[6]]
#> [1] 78.162213 -3.361443
#> 
#> $features[[1]]$geometry$coordinates[[1]][[7]]
#> [1] 78.596636 -2.538331
#> 
#> $features[[1]]$geometry$coordinates[[1]][[8]]
#> [1] 79.5894980  0.3928955
#> 
#> $features[[1]]$geometry$coordinates[[1]][[9]]
#> [1] 85.1453525 -0.9008309
#> 
#> $features[[1]]$geometry$coordinates[[1]][[10]]
#> [1] 84.223380  3.608359
#> 
#> $features[[1]]$geometry$coordinates[[1]][[11]]
#> [1] 89.586114  4.459564
#> 
#> 
#> 
#> 
#> $features[[1]]$properties
#> list()
#> 
#> 
#> 
#> attr(,"class")
#> [1] "geo_list"

Visualize your shapes with lawn.

lawn::view(jsonlite::toJSON(geo_polygon(count = 4), auto_unbox = TRUE))

Generate random WKT

Random point

wkt_point()
#> [1] "POINT (-83.8526705 -10.2530421)"

Random polygon

wkt_polygon()
#> [1] "POLYGON ((-42.6568552 13.7532933, -35.1426362 18.2858412, -35.3604405 7.8659975, -41.3825862 10.6372332, -41.5181338 2.7310015, -43.8718184 9.9846496, -44.8487826 9.0094509, -46.1718704 9.9172417, -49.4804921 16.7181997, -44.4215407 15.5379150, -42.6568552 13.7532933))"

Meta

• Please report any issues or bugs.
• License: MIT
• Get citation information for randgeo in R doing citation(package = 'randgeo')
• Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.