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Make Voronoï polygons

voronoi_com.Rd

Partition a city into voronoi polygons :

  • Use sf::st_voronoi with envelope parameter (= city contour)

  • Cast the result and intersects with the city contour

Usage

voronoi_com(sfelecteurs, com, var_bv)

Arguments

sfelecteurs

sf points

com

city contours (sf multipolygons)

var_bv

column name for BV id column

Value

voronoi multipolygons

Details

Create voronoi polygons inside city contours.

  • 1 point = several addresses = several BVs

Examples

sfelecteurs <- mapvotr::sf_input_voronoi
com <- mapvotr::contours_com_sample %>%
  dplyr::filter(code_insee == "29039") %>%
  sf::st_transform(2154)
var_bv <- "id_brut_bv_reu"
mapvotr:::voronoi_com(sfelecteurs, com, var_bv)
#> [1] "Launch voronoi_com"
#> Log is not open.
#> [1] "2 points with addresses related to different vote offices"
#> Log is not open.
#> Simple feature collection with 267 features and 1 field
#> Geometry type: GEOMETRY
#> Dimension:     XY
#> Bounding box:  xmin: 181289.4 ymin: 6772363 xmax: 188708.9 ymax: 6783302
#> Projected CRS: RGF93 v1 / Lambert-93
#> First 10 features:
#>                          geometry id_voronoi
#> 1  POLYGON ((182950.4 6778987,...          1
#> 2  MULTIPOLYGON (((183059.1 67...          2
#> 3  MULTIPOLYGON (((183105.6 67...          3
#> 4  POLYGON ((183081 6774990, 1...          4
#> 5  POLYGON ((183076.5 6774995,...          5
#> 6  POLYGON ((183117 6774908, 1...          6
#> 7  POLYGON ((183145.8 6774925,...          7
#> 8  POLYGON ((183081 6774990, 1...          8
#> 9  POLYGON ((183136.9 6774963,...          9
#> 10 POLYGON ((183139.7 6774966,...         10