R: Voronoi diagram and Delauny triangles

voronoi {terra} | R Documentation

## Voronoi diagram and Delauny triangles

### Description

Get a voronoi diagram or delauny triangles for points, or the nodes of lines or polygons

### Usage

    ## S4 method for signature 'SpatVector'
    voronoi(x, bnd=NULL, tolerance=0, as.lines=FALSE, deldir=FALSE)

    ## S4 method for signature 'SpatVector'
    delauny(x, tolerance=0, as.lines=FALSE)

### Arguments

`x` | SpatVector
`bnd` | SpatVector to set the outer boundary of the voronoi diagram
`tolerance` | numeric >= 0, snapping tolerance (0 is no snapping)
`as.lines` | logical. If `TRUE`, lines are returned without the outer boundary
`deldir` | logical. If `TRUE`, the `deldir` is used instead of the GEOS C++ library method. It has been reported that `deldir` does not choke on very large data sets

### Value

SpatVector

### Examples

    wkt <- c("MULTIPOLYGON ( ((40 40, 20 45, 45 30, 40 40)),
      ((20 35, 10 30, 10 10, 30 5, 45 20, 20 35),(30 20, 20 15, 20 25, 30 20)))",
      "POLYGON ((0 -5, 10 0, 10 -10, 0 -5))")
    x <- vect(wkt)
    v <- voronoi(x)
    v

    plot(v, lwd=2, col=rainbow(15))
    lines(x, col="gray", lwd=2)
    points(x)

[Package terra version 1.3-22 Index]