Low-level wk filters and handlers
# S3 method for s2_geography
wk_handle(
handleable,
handler,
...,
s2_projection = s2_projection_plate_carree(),
s2_tessellate_tol = Inf
)s2_geography_writer(
oriented = FALSE,
check = TRUE,
projection = s2_projection_plate_carree(),
tessellate_tol = Inf
)
# S3 method for s2_geography
wk_writer(handleable, ...)
s2_trans_point()
s2_trans_lnglat()
s2_projection_plate_carree(x_scale = 180)
s2_projection_mercator(x_scale = 20037508.3427892)
s2_hemisphere(centre)
s2_world_plate_carree(epsilon_east_west = 0, epsilon_north_south = 0)
s2_projection_orthographic(centre = s2_lnglat(0, 0))
s2_projection_plate_carree(), s2_projection_mercator(): An external pointer
to an S2 projection.
A geometry vector (e.g., wkb(), wkt(), xy(),
rct(), or sf::st_sfc()) for which wk_handle() is defined.
A wk_handler object.
Passed to the wk_handle() method.
TRUE if polygon ring directions are known to be correct (i.e., exterior rings are defined counter clockwise and interior rings are defined clockwise).
Use check = FALSE to skip error on invalid geometries
One of s2_projection_plate_carree() or
s2_projection_mercator()
An angle in radians. Points will not be added if a line segment is within this distance of a point.
The maximum x value of the projection
The center point of the orthographic projection
Use a positive number to define the edges of a Cartesian world slightly inward from -180, -90, 180, 90. This may be used to define a world outline for a projection where projecting at the extreme edges of the earth results in a non-finite value.