check_onland: Check which points are located on land.

In sharksmhi/SHARK4R: Retrieving, Analyzing, and Validating Marine Data from SHARK and Nordic Microalgae

Check which points are located on land.

Description

Check which points are located on land.

Usage

check_onland(data, land = NULL, report = FALSE, buffer = 0, offline = FALSE)

Arguments

data	The data frame.
land	SpatialPolygonsDataFrame. If not provided the simplified land polygons from OSM are used. This parameter is ignored when, offline = FALSE.
report	If TRUE, errors are returned instead of records.
buffer	Set how far inland points are still to be deemed valid (in meters).
offline	If TRUE, a local simplified shoreline is used, otherwise an OBIS webservice is used. The default value is FALSE.

Value

Errors or problematic records.

See Also

check_depth lookup_xy

Examples

## Not run: 
report <- check_onland(abra, report = TRUE, buffer = 100)
print(report)
# plot records on land with 100 meter buffer
plot_map_leaflet(abra[report$row,], popup = "id")
# filter records not on land
ok <- abra[-1 * report$row,]
ok <- check_onland(abra, report = FALSE, buffer = 100)
print(nrow(ok))

## End(Not run)

sharksmhi/SHARK4R documentation built on Jan. 9, 2025, 5:15 p.m.