Uses sp::spsample() with method "hexagonal" to produce points, converts back to sf,
and spatial joins with input shp.
Each engine function takes the same arguments and produces comparable outputs.
Final number of points may be approximate for this method.
Examples
set.seed(1)
data('suffolk')
engine_sp_hexagonal(suffolk[16:20, ], 'pop_nhpi')
#> Simple feature collection with 16 features and 21 fields
#> Geometry type: POINT
#> Dimension: XY
#> Bounding box: xmin: -7914225 ymin: 5207278 xmax: -7908200 ymax: 5212673
#> Projected CRS: WGS 84 / Pseudo-Mercator
#> First 10 features:
#> GEOID NAME pop pop_white pop_black
#> 1 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 2 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 3 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 4 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 5 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 6 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 7 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 8 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 9 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> 10 25025000408 0408, Suffolk County, Massachusetts 5671 3212 467
#> pop_hisp pop_aian pop_asian pop_nhpi pop_other pop_two vap vap_white
#> 1 572 1 1131 17 29 242 5527 3177
#> 2 572 1 1131 17 29 242 5527 3177
#> 3 572 1 1131 17 29 242 5527 3177
#> 4 572 1 1131 17 29 242 5527 3177
#> 5 572 1 1131 17 29 242 5527 3177
#> 6 572 1 1131 17 29 242 5527 3177
#> 7 572 1 1131 17 29 242 5527 3177
#> 8 572 1 1131 17 29 242 5527 3177
#> 9 572 1 1131 17 29 242 5527 3177
#> 10 572 1 1131 17 29 242 5527 3177
#> vap_black vap_hisp vap_aian vap_asian vap_nhpi vap_other vap_two dots_type
#> 1 439 531 1 1102 17 28 232 pop_nhpi
#> 2 439 531 1 1102 17 28 232 pop_nhpi
#> 3 439 531 1 1102 17 28 232 pop_nhpi
#> 4 439 531 1 1102 17 28 232 pop_nhpi
#> 5 439 531 1 1102 17 28 232 pop_nhpi
#> 6 439 531 1 1102 17 28 232 pop_nhpi
#> 7 439 531 1 1102 17 28 232 pop_nhpi
#> 8 439 531 1 1102 17 28 232 pop_nhpi
#> 9 439 531 1 1102 17 28 232 pop_nhpi
#> 10 439 531 1 1102 17 28 232 pop_nhpi
#> geometry
#> 1 POINT (-7913645 5211519)
#> 2 POINT (-7913546 5211691)
#> 3 POINT (-7913645 5211863)
#> 4 POINT (-7913446 5211863)
#> 5 POINT (-7913546 5212035)
#> 6 POINT (-7913347 5212035)
#> 7 POINT (-7913645 5212207)
#> 8 POINT (-7913446 5212207)
#> 9 POINT (-7913248 5212207)
#> 10 POINT (-7913049 5212207)