gpclib (version 1.2)

new-generics: Generics/Methods for polygon objects

Description

Some generic functions and methods for polygon objects

Usage

append.poly(x, y)
area.poly(object, ...)
get.pts(object)
get.bbox(x)
scale.poly(x, ...)

Arguments

x,object

A polygon object

y

A polygon object

...

Other arguments passed to methods

See Also

"gpc.poly" class documentation.

Examples

holepoly <- read.polyfile(system.file("poly-ex/hole-poly.txt", package =
"gpclib"), nohole = FALSE)
area.poly(holepoly)
stopifnot(area.poly(holepoly) == 8)