sp (version 1.0-1)

SpatialPolygons-class: Class "SpatialPolygons"

Description

class to hold polygon topology (without attributes)

Arguments

Objects from the Class

Objects can be created by calls to the function SpatialPolygons

Extends

Class "Spatial", directly.

Details

The plot method for spatial polygons takes the following arguments: [object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object] The options for usePolypath and rule may be retrieved with get_Polypath (default TRUE on package load) and get_PolypathRule (default winding on package load), and set with set_Polypath and set_PolypathRule

See Also

SpatialPolygons

Examples

Run this code
# simple example, from vignette("sp"):
Sr1 = Polygon(cbind(c(2,4,4,1,2),c(2,3,5,4,2)))
Sr2 = Polygon(cbind(c(5,4,2,5),c(2,3,2,2)))
Sr3 = Polygon(cbind(c(4,4,5,10,4),c(5,3,2,5,5)))
Sr4 = Polygon(cbind(c(5,6,6,5,5),c(4,4,3,3,4)), hole = TRUE)

Srs1 = Polygons(list(Sr1), "s1")
Srs2 = Polygons(list(Sr2), "s2")
Srs3 = Polygons(list(Sr3, Sr4), "s3/4")
SpP = SpatialPolygons(list(Srs1,Srs2,Srs3), 1:3)
plot(SpP, col = 1:3, pbg="white")grd <- GridTopology(c(1,1), c(1,1), c(10,10))
polys <- as.SpatialPolygons.GridTopology(grd)
plot(polys)
#text(coordinates(polys), labels=sapply(slot(polys, "polygons"), function(i) slot(i, "ID")), cex=0.6)
text(coordinates(polys), labels=row.names(polys))

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