simplifyGeom {terra}

simplifyGeom geometries

Description

Reduce the number of nodes used to represent geometries.

Usage

## S4 method for signature 'SpatVector'
simplifyGeom(x, tolerance=0.1, preserveTopology=TRUE, makeValid=TRUE)

Arguments

x

SpatVector of lines or polygons

tolerance

numeric. The minimum distance between nodes in units of the crs (i.e. degrees for long/lat)

preserveTopology

logical. If TRUE the topology of output geometries is preserved

makeValid

logical. If TRUE, makeValid is run after simplification to assure that the output polygons are valid

Value

SpatVector

See Also

sharedPaths, gaps, is.valid

Examples

f <- system.file("ex/lux.shp", package="terra")
v <- vect(f)
w <- simplifyGeom(v, .02, makeValid=FALSE)
e <- erase(w)
g <- gaps(e)
plot(e, lwd=5, border="light gray")
polys(g, col="red", border="red")