spatial_write {ursa} | R Documentation |
Wrapper functions for writing spatial objects.
Description
Write spatial object to disk. If spatial object is Simple Features, then appropriate functions from package sf are used.
Usage
spatial_write(obj, fname, layer, driver = NA, compress = "",
ogr2ogr = nchar(Sys.which("ogr2ogr")) > 0, verbose = FALSE)
Arguments
obj |
Spatial object: Simple Features (sf). List of spatial objects can be used. |
fname |
Character. File name with or without extension. If extension is missed, then argument |
layer |
Character. Layer name. If missed, then basename of |
driver |
Character. Driver for specification of output file format. Default is |
compress |
Character or logical. Will output file or list of files be packed after writing and what archive format will be used. Available character values are |
ogr2ogr |
Logical. If |
verbose |
Logical. Value |
Details
Based on sf::st_write
function with additonal options: compressing of output file(s), coordinates trasforming (to longitudes and latitudes for driver="GeoJSON"
), creating multi-layer destination (for driver="SQLite"
).
Value
invisible NULL
.
Author(s)
Nikita Platonov platonov@sevin.ru
See Also
Examples
session_grid(NULL)
n <- 1e2
x <- runif(n,min=25,max=65)
y <- runif(n,min=55,max=65)
z <- runif(n,min=1,max=10)
da <- data.frame(x=x,y=y,z=z)
if (requireNamespace("sf",quietly=TRUE)) {
obj1 <- sf::st_as_sf(da,coords=c("x","y"),crs=4326)
print(series(obj1))
fname1 <- file.path(tempdir(),"res1.shp")
print(fname1)
spatial_write(obj1,fname1)
res1 <- spatial_read(fname1,engine="sf")
print(series(res1))
}
print(spatial_dir(tempdir()))