geometr (version 0.2.5)

gs_voronoi: Create a voronoi tiling geom

Description

Create a voronoi tiling geom

Usage

gs_voronoi(anchor = NULL, window = NULL, features = 3, sketch = NULL, ...)

Arguments

anchor

[geom(1)|data.frame(1)] Object to derive the geom from. It must include column names x, y and optionally a custom fid.

window

[data.frame(1)] in case the reference window deviates from the bounding box of anchor (minimum and maximum values), specify this here.

features

[integerish(1)] number of tiles to sketch.

sketch

[RasterLayer(1) | matrix(1)] Gridded object that serves as template to sketch the tiling.

...

[various] graphical parameters to gt_locate, in case the tiling is sketched; see gpar.

Value

An invisible geom.

See Also

Other tilings: gs_tiles()

Examples

# NOT RUN {
# 1. create voronoi polygons programmatically
coords <- data.frame(x = c(40, 70, 70, 50),
                     y = c(40, 40, 60, 70))
window <- data.frame(x = c(0, 80),
                     y = c(0, 80))
aGeom <- gs_point(anchor = coords, window = window)
visualise(voronoi = aGeom)

tiles <- gs_voronoi(anchor = aGeom)
visualise(tiles, new = FALSE)
# }
# NOT RUN {
# 2. sketch a voronoi polygon by clicking into a template
gs_voronoi(sketch = gtRasters$continuous) %>%
  visualise(tiles = ., new = FALSE)
# }