Name: randgeo
Owner: rOpenSci
Description: random WKT or GeoJSON
Created: 2017-01-19 18:12:39.0
Updated: 2018-01-09 20:05:59.0
Pushed: 2018-01-05 19:47:27.0
Homepage: https://ropensci.github.io/randgeo/
Size: 574
Language: R
GitHub Committers
| User | Most Recent Commit | # Commits |
|---|
Other Committers
| User | Most Recent Commit | # Commits |
|---|
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 pointgeo_linestring - random GeoJSON linestringgeo_polygon - random GeoJSON polygonwkt_point - random WKT pointwkt_linestring - random WKT linestringwkt_polygon - random WKT polygonhttps://ropensci.github.io/randgeo/
Stabler CRAN version
all.packages("randgeo")
Development version
ools::install_github("ropensci/randgeo")
ary("randgeo")
osition()
[1]]
1] 149.33018 -60.94463
Random point - evenly distributed across the sphere. The bbox option allows
you to limit points to within long/lat bounds.
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] -76.98977 -41.36819
features[[1]]$properties
ULL
ttr(,"class")
1] "geo_list"
Random linestring - starting from a random point, with default maximum segment length and maximum rotation between two segments.
linestring()
type
1] "FeatureCollection"
features
features[[1]]
features[[1]]$type
1] "Feature"
features[[1]]$geometry
features[[1]]$geometry$type
1] "LineString"
features[[1]]$geometry$coordinates
features[[1]]$geometry$coordinates[[1]]
features[[1]]$geometry$coordinates[[1]][[1]]
1] 51.028387 -2.188767
features[[1]]$geometry$coordinates[[1]][[2]]
1] 51.027774 -2.189005
features[[1]]$geometry$coordinates[[1]][[3]]
1] 51.028109 -2.189318
features[[1]]$geometry$coordinates[[1]][[4]]
1] 51.027487 -2.190017
features[[1]]$geometry$coordinates[[1]][[5]]
1] 51.027774 -2.190379
features[[1]]$geometry$coordinates[[1]][[6]]
1] 51.027088 -2.191078
features[[1]]$geometry$coordinates[[1]][[7]]
1] 51.027435 -2.191403
features[[1]]$geometry$coordinates[[1]][[8]]
1] 51.026922 -2.192147
features[[1]]$geometry$coordinates[[1]][[9]]
1] 51.027533 -2.192925
features[[1]]$geometry$coordinates[[1]][[10]]
1] 51.027475 -2.192984
features[[1]]$properties
ULL
ttr(,"class")
1] "geo_list"
Random polygon - centered on a random point, with default maximum size
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] 7.375542 21.481953
features[[1]]$geometry$coordinates[[1]][[2]]
1] 9.557249 13.822460
features[[1]]$geometry$coordinates[[1]][[3]]
1] 10.882944 6.553386
features[[1]]$geometry$coordinates[[1]][[4]]
1] 8.192794 5.962077
features[[1]]$geometry$coordinates[[1]][[5]]
1] 8.305398 5.210405
features[[1]]$geometry$coordinates[[1]][[6]]
1] 2.573744 9.711262
features[[1]]$geometry$coordinates[[1]][[7]]
1] 0.4559409 17.8573283
features[[1]]$geometry$coordinates[[1]][[8]]
1] 5.093829 12.718010
features[[1]]$geometry$coordinates[[1]][[9]]
1] 2.778335 20.708271
features[[1]]$geometry$coordinates[[1]][[10]]
1] 5.103798 12.757463
features[[1]]$geometry$coordinates[[1]][[11]]
1] 7.375542 21.481953
features[[1]]$properties
ULL
ttr(,"class")
1] "geo_list"
Visualize your shapes with lawn.
::view(jsonlite::toJSON(geo_polygon(count = 4), auto_unbox = TRUE))
Random point
point()
1] "POINT (50.3923570 -70.3787919)"
Random linestring
linestring()
1] "LINESTRING (42.7817546 19.4598109, 42.7818265 19.4597713, 42.7819039 19.4597543, 42.7819206 19.4597476, 42.7819732 19.4597341, 42.7820674 19.4596920, 42.7821133 19.4596554, 42.7821233 19.4596390, 42.7821761 19.4595728, 42.7821867 19.4595509)"
Random polygon
polygon()
1] "POLYGON ((-164.5191674 48.1392788, -160.7019535 50.0321237, -162.9547961 47.6318361, -154.1477728 46.2428280, -164.4173904 45.9485672, -160.5131717 43.5274697, -167.1833639 41.2046996, -164.5419419 45.9658491, -171.4209181 42.8764619, -166.7761058 46.2084577, -164.5191674 48.1392788))"
randgeo in R doing citation(package = 'randgeo')