terra (version 0.4-3)

geom: Get the geometry (coordinates) of a SpatVector

Description

Get the geometry of a SpatVector. This is a five-column matrix: the vector object ID, the IDs for the parts of each object (e.g. five polygons that together are one spatial object), the x (longitude) and y (latitude) coordinates, and a flag indicating whether the part is a "hole" (only relevant for polygons).

Usage

# S4 method for SpatVector
geom(x, ...)

Arguments

x

SpatVector

...

additional arguments. None implemented

Value

matrix

See Also

See xyFromCell to get the coordinates of the cells of a SpatRaster

Examples

# NOT RUN {
x1 <- rbind(c(-175,-20), c(-140,55), c(10, 0), c(-140,-60))
x2 <- rbind(c(-10,0), c(140,60), c(160,0), c(140,-55))
x3 <- rbind(c(-125,0), c(0,60), c(40,5), c(15,-45))
x4 <- rbind(c(80,0), c(105,13), c(120,2), c(105,-13))
z <- rbind(cbind(object=0, part=0, x1), cbind(object=1, part=0, x2), 
           cbind(object=2, part=0, x3), cbind(object=2, part=1,  x4))
colnames(z)[3:4] <- c('x', 'y')
z <- data.frame(z)
z$hole <- 0
z$hole[z$object==2 & z$part==1] <- 1

p <- vect(z)
geom(p)

f <- system.file("exdata/lux.shp", package="terra")
v <- vect(f)
g <- geom(v)
head(g)
# }