Create a sspm_boundary object. A boundary object serves as a basis to encode the spatial extent of the model.
spm_as_boundary(
boundaries,
boundary,
patches = NULL,
points = NULL,
boundary_area = NULL,
patch_area = NULL
)
# S4 method for class 'missing,ANY,ANY,ANY'
spm_as_boundary(
boundaries,
boundary,
patches = NULL,
points = NULL,
boundary_area = NULL,
patch_area = NULL
)
# S4 method for class 'ANY,missing,ANY,ANY'
spm_as_boundary(
boundaries,
boundary,
patches = NULL,
points = NULL,
boundary_area = NULL,
patch_area = NULL
)
# S4 method for class 'sf,character,missing,missing'
spm_as_boundary(
boundaries,
boundary,
patches = NULL,
points = NULL,
boundary_area = NULL,
patch_area = NULL
)
# S4 method for class 'sf,character,ANY,ANY'
spm_as_boundary(
boundaries,
boundary,
patches = NULL,
points = NULL,
boundary_area = NULL,
patch_area = NULL
)Arguments
- boundaries
[sf] The sf object to cast.
- boundary
[character] The column that contains the possible subdivisions of the boundaries.
- patches
[sf] Patches resulting from discretization.
- points
[sf] Sample points used for discretization.
- boundary_area
[character] The column that contains the area of the subdivisions (optional).
- patch_area
[character] The column that contains the area of the patches (optional).
Value
An object of class sspm_boundary or sspm_discrete_boundary.
Examples
sfa_boundaries
#> Simple feature collection with 4 features and 2 fields
#> Geometry type: MULTIPOLYGON
#> Dimension: XY
#> Bounding box: xmin: -64.18658 ymin: 46.00004 xmax: -46.6269 ymax: 60.84333
#> Geodetic CRS: WGS 84
#> sfa geometry area
#> 1 4 MULTIPOLYGON (((-59.36453 5... 47575648300 [m^2]
#> 2 5 MULTIPOLYGON (((-55 53.75, ... 62857719164 [m^2]
#> 3 6 MULTIPOLYGON (((-49.9269 49... 178716060645 [m^2]
#> 4 7 MULTIPOLYGON (((-54.48779 4... 147799572836 [m^2]
bounds <- spm_as_boundary(boundaries = sfa_boundaries,
boundary = "sfa")
plot(bounds)
