Segments are defined as corridor subregions separated by river-crossing transversal lines that form continuous strokes in the network.
Arguments
- corridor
The river corridor as a simple feature geometry
- network
The spatial network to be used for the segmentation
- river_centerline
The river centerline as a simple feature geometry
- angle_threshold
Only consider angles above this threshold (in degrees) to form continuous strokes in the network. See
rcoins::stroke()for more details.
Examples
if (!requireNamespace("CRiSpData", quietly = TRUE)) {
message("Install CRiSpData from GitHub to run this example.")
} else {
corridor <- bucharest_delineation$corridor
network <- rbind(CRiSpData::bucharest_osm$streets,
CRiSpData::bucharest_osm$railways) |>
as_network()
river_centerline <- CRiSpData::bucharest_osm$river_centerline
delineate_segments(corridor, network, river_centerline)
}
#> Warning: to_spatial_subdivision assumes attributes are constant over geometries
#> Geometry set for 11 features
#> Geometry type: POLYGON
#> Dimension: XY
#> Bounding box: xmin: 418298.9 ymin: 4914017 xmax: 438435.1 ymax: 4925645
#> Projected CRS: WGS 84 / UTM zone 35N
#> First 5 geometries:
#> POLYGON ((418298.9 4923448, 418385.7 4924063, 4...
#> POLYGON ((425296.7 4922838, 425353.4 4922781, 4...
#> POLYGON ((425875.6 4922234, 425890.3 4922219, 4...
#> POLYGON ((426699 4921438, 426712.5 4921425, 426...
#> POLYGON ((426881.9 4921233, 426900.1 4921176, 4...