retrieve_vector {rdwplus} | R Documentation |
Write a vector layer from the current GRASS mapset to file
Description
This function writes a GRASS mapset vector layer (like a shapefile) to file.
Usage
retrieve_vector(layer, out_layer, overwrite = FALSE, ...)
Arguments
layer |
The name of the vector layer in the GRASS mapset that is to be written out. |
out_layer |
The name of the shapefile to be created (with .shp file extension). |
overwrite |
A logical indicating whether the output from this function should be allowed to overwrite any existing files. Defaults to |
... |
Additional arguments to |
Value
Nothing.
Examples
# Will only run if GRASS is running
if(check_running()){
# Load data set
dem <- system.file("extdata", "dem.tif", package = "rdwplus")
stream_shp <- system.file("extdata", "streams.shp", package = "rdwplus")
# Set environment parameters and import data to GRASS
set_envir(dem)
vector_to_mapset(vectors = stream_shp)
# Retrieve raster
out_name <- paste0(tempdir(), "/", "retrieved_streams.shp")
retrieve_vector("streams", out_layer = out_name, overwrite = TRUE)
}
[Package rdwplus version 1.0.0 Index]