Class "SpatialPolygons"

Description

class to hold polygon topology (without attributes)

Objects from the Class

Objects can be created by calls to the function SpatialPolygons

Slots

polygons:

Object of class "list"; list elements are all of class Polygons-class

plotOrder:

Object of class "integer"; integer array giving the order in which objects should be plotted

bbox:

Object of class "matrix"; see Spatial-class

proj4string:

Object of class "CRS"; see CRS-class

Extends

Class "Spatial", directly.

Methods

No methods defined with class "SpatialPolygons" in the signature.

Note

Author(s)

Roger Bivand

References

See Also

SpatialPolygons

Examples

data(ncshp)
nc1 <- as.SpatialPolygons.Shapes(nc.shp$Shapes, as.character(nc.shp$att.data$FIPS))
plotSpatialPolygons(nc1)
invisible(text(getSpPPolygonsLabptSlots(nc1), labels=getSpPPolygonsIDSlots(nc1), cex=0.6))
data(ncmap)
IDs <- sapply(strsplit(ncmap$names, ","), function(x) x[2])
nc2 <- as.SpatialPolygons.map(ncmap, IDs)
plotSpatialPolygons(nc2)
invisible(text(getSpPPolygonsLabptSlots(nc2), labels=getSpPPolygonsIDSlots(nc2), cex=0.6))
data(co37_d90_arc)
data(co37_d90_pal)
data(co37_d90_pat)
IDs <- paste(pat$ST[-1], pat$CO[-1], sep="")
nc3 <- as.SpatialPolygons.pal(arc, pal, IDs=IDs)
plotSpatialPolygons(nc3)
invisible(text(getSpPPolygonsLabptSlots(nc3), labels=getSpPPolygonsIDSlots(nc3), cex=0.6))