A small synthetic osm_graph for examples and tests

Builds a tiny n x n regular street grid as an osm_graph, with no network access. Edges are bidirectional and weighted by their planar length. Useful for examples, tests and learning the API offline.

Usage

example_osm_graph(n = 4, spacing = 100)

Arguments

n

Grid size; the network has n * n nodes. Default 4.

spacing

Distance between adjacent nodes, in CRS units. Default 100.

Value

An osm_graph in an arbitrary projected CRS.

Examples

g <- example_osm_graph()
g
#> 
#> ── osm_graph ───────────────────────────────────────────────────────────────────
#> 16 nodes, 48 edges
#> Network type: "drive"
#> Simplified: TRUE
#> CRS: "EPSG:3857"
ox_basic_stats(g)
#> # A tibble: 1 × 7
#>   n_nodes n_edges total_length mean_length mean_out_degree self_loops circuity
#>     <int>   <int>        <dbl>       <dbl>           <dbl>      <int>    <dbl>
#> 1      16      48         4800         100               3          0        1