tesselate_voronoi: Perform voronoi tesselation

In pedersen-fisheries-lab/spaspm: Spatial Surplus Production Model Framework for Northern Shrimp Populations

Perform voronoi tesselation

Description

Generates voronoi polygons by first performing stratified sampling across boundary polygons, then by running the voronoisation with st_voronoi().

Usage

tesselate_voronoi(
  boundaries,
  with,
  boundary = "sfa",
  sample_surface = FALSE,
  sample_points = TRUE,
  nb_samples = NULL,
  min_size = 1500,
  stratify = TRUE,
  seed = 1
)

Arguments

boundaries	[sf] The boundaries to be used.
with	[sf] A set of data points to use for voronoisation.
boundary	[character] The column in boundaries that is to be used for the stratified sampling.
sample_surface	[logical] Whether to sample the surfaces in boundaries, Default to FALSE.
sample_points	[logical] Whether to sample points from with or to take all points in with. Default to TRUE.
nb_samples	[named character vector] The number of samples to draw by boundary polygons (must bear the levels of boundary as names or be a single value to be applied to each level).
min_size	[numeric] The minimum size for a polygon above which it will be merged (in km2).
stratify	[logical] Whether the discretization happens within the boundaries or whether the whole area is to be used (default to TRUE).
seed	[numeric] Passed onto set.seed(), important for reproducibility of sampling.

Value

A named list with three elements (each an sf object): * patches, the voronoi polygons generated * points, the points used for the tessellation.

Examples

data(borealis_simulated, package = "sspm")
data(sfa_boundaries, package = "sspm")
tesselate_voronoi(sfa_boundaries, with = borealis, sample_surface = TRUE,
                  boundary = "sfa", nb_samples = 10)

pedersen-fisheries-lab/spaspm documentation built on Feb. 16, 2025, 7:39 p.m.