# NOT RUN {
# Initiate and setup GRASS
dem_path <- system.file("extdata", "nc", "elev_ned_30m.tif", package = "openSTARS")
if(.Platform$OS.type == "windows"){
grass_program_path = "c:/Program Files/GRASS GIS 7.6"
} else {
grass_program_path = "/usr/lib/grass78/"
}
setup_grass_environment(dem = dem_path,
gisBase = grass_program_path,
remove_GISRC = TRUE,
override = TRUE
)
gmeta()
# Load files into GRASS
dem_path <- system.file("extdata", "nc", "elev_ned_30m.tif", package = "openSTARS")
sites_path <- system.file("extdata", "nc", "sites_nc.shp", package = "openSTARS")
streams_path <- system.file("extdata", "nc", "streams.shp", package = "openSTARS")
preds_v_path <- system.file("extdata", "nc", "pointsources.shp", package = "openSTARS")
preds_r_path <- system.file("extdata", "nc", "landuse_r.tif", package = "openSTARS")
import_data(dem = dem_path, sites = sites_path, streams = streams_path,
predictor_vector = preds_v_path, predictor_raster = preds_r_path)
# Derive streams from DEM
derive_streams(burn = 0, accum_threshold = 700, condition = TRUE, clean = TRUE)
# Check and correct complex confluences (there are no complex confluences in this
# example date set; set accum_threshold in derive_streams to a smaller value
# to create complex confluences)
cj <- check_compl_confluences()
if(cj){
correct_compl_confluences()
}
# Prepare edges
calc_edges()
# Prepare site
calc_sites()
binaries <- calc_binary()
head(binaries[[1]])
# }
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