districts() returns the boundaries of districts (islands) in the Azores.
districts_25N() returns the districts in the meter-based projection PTRA08
/ UTM zone 25N, i.e. those districts in the western-most part of the
archipelago: Ilha das Flores and Ilha do Corvo.
districts_26N() returns the districts in the meter-based projection PTRA08
/ UTM zone 26N, i.e. those districts in the Central and Eastern groups of
the archipelago.
Usage
districts(crs = laea_azores_proj())
districts_25N()
districts_26N()Arguments
- crs
Coordinate reference system (CRS) passed on to st_transform(). Defaults to a custom CRS centered on the Azores, see
laea_azores_proj()for more details. Other possible options are"EPSG: 3035"for ETRS89-extended / LAEA Europe or"EPSG:4326"for WGS 84.
Value
A simple features (sf) object with six fields:
idAn unique identifier for the district. Follows the format
[DT][MN][FR]: DT is a two-digit id for the district, MN for the municipality and FR for the district (freguesia in Portuguese).districtName of the civil district.
municipalityName of municipality.
districtName of district, coincides with the name of the island.
areaDistrict area in hectares (ha).
perimeterDistrict perimeter in kilometers.
n_municipalitiesNumber of municipalities in the district.
n_parishesNumber of parishes in the district.
Examples
districts()
#> Simple feature collection with 9 features and 6 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: -281288.2 ymin: -170294.3 xmax: 266022.8 ymax: 140634.8
#> Projected CRS: +proj=laea +lat_0=38.5 +lon_0=-28 +datum=WGS84 +units=m +no_defs
#> id district area perimeter n_municipalities n_parishes
#> 1 48 Ilha das Flores 14096.22 72 2 11
#> 2 49 Ilha do Corvo 1711.45 21 1 1
#> 3 41 Ilha de Santa Maria 9688.74 78 1 5
#> 4 42 Ilha de São Miguel 74457.50 230 6 64
#> 5 43 Ilha Terceira 40026.72 126 2 30
#> 6 44 Ilha da Graciosa 6065.78 44 1 4
#> 7 45 Ilha de São Jorge 24364.78 139 2 11
#> 8 46 Ilha do Pico 44479.53 153 3 17
#> 9 47 Ilha do Faial 17305.53 80 1 13
#> geometry
#> 1 MULTIPOLYGON (((-278363.3 1...
#> 2 MULTIPOLYGON (((-267155.3 1...
#> 3 MULTIPOLYGON (((262934.5 -1...
#> 4 MULTIPOLYGON (((225499.7 -8...
#> 5 MULTIPOLYGON (((67086.26 17...
#> 6 MULTIPOLYGON (((4441.145 57...
#> 7 MULTIPOLYGON (((16402.23 86...
#> 8 MULTIPOLYGON (((-10785.79 -...
#> 9 MULTIPOLYGON (((-57167.91 2...
districts_25N()
#> Simple feature collection with 2 features and 6 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: 648953 ymin: 4359450 xmax: 664413.8 ymax: 4399078
#> Projected CRS: PTRA08 / UTM zone 25N
#> id district area perimeter n_municipalities n_parishes
#> 1 48 Ilha das Flores 14096.22 72 2 11
#> 2 49 Ilha do Corvo 1711.45 21 1 1
#> geometry
#> 1 MULTIPOLYGON (((652373.2 43...
#> 2 MULTIPOLYGON (((661755.7 43...
districts_26N()
#> Simple feature collection with 7 features and 6 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: 340225.2 ymin: 4088680 xmax: 676927.7 ymax: 4328069
#> Projected CRS: PTRA08 / UTM zone 26N
#> id district area perimeter n_municipalities n_parishes
#> 1 41 Ilha de Santa Maria 9688.74 78 1 5
#> 2 42 Ilha de São Miguel 74457.50 230 6 64
#> 3 43 Ilha Terceira 40026.72 126 2 30
#> 4 44 Ilha da Graciosa 6065.78 44 1 4
#> 5 45 Ilha de São Jorge 24364.78 139 2 11
#> 6 46 Ilha do Pico 44479.53 153 3 17
#> 7 47 Ilha do Faial 17305.53 80 1 13
#> geometry
#> 1 MULTIPOLYGON (((673890.3 40...
#> 2 MULTIPOLYGON (((637304.4 41...
#> 3 MULTIPOLYGON (((480046.7 42...
#> 4 MULTIPOLYGON (((417872.7 43...
#> 5 MULTIPOLYGON (((429290.7 42...
#> 6 MULTIPOLYGON (((401906.2 42...
#> 7 MULTIPOLYGON (((355680.8 42...