SpatialRings {sp} | R Documentation

## create objects of class SpatialRings or SpatialRingsDataFrame

### Description

create objects of class `SpatialRings` or `SpatialRingsDataFrame` from lists of `Srings` objects and `data.frame`s

### Usage

    Sring(coords, proj4string=CRS(as.character(NA)), hole=as.logical(NA))
    Srings(srl, ID)
    SpatialRings(Srl, pO = 1:length(Srl))
    SpatialRingsDataFrame(Sr, data, match.ID = TRUE)

### Arguments

`coords` | 2-column numeric matrix with coordinates; first point (row) should equal last coordinates (row)
`proj4string` | projection string of class CRS-class
`hole` | logical value for setting ring as hole or not
`srl` | list with Sring-class objects
`ID` | character vector of length one with identifier
`Srl` | list with objects of class Srings-class
`pO` | integer vector; plotting order
`Sr` | object of class SpatialRings-class
`data` | object of class `data.frame`; the number of rows in `data` should equal the number of Srings-class objects in `Sr`
`match.ID` | logical: (default TRUE): match SpatialRings member Srings ID slot values with data frame row names, and re-order the data frame rows if necessary

### Value

`Sring` returns an object of class `Sring`; `Srings` returns an object of class `Srings`; `SpatialRings` returns object of class `SpatialRings`; `SpatialRingsDataFrame` returns object of class `SpatialRingsDataFrame`

### See Also

SpatialRings-class, SpatialRingsDataFrame-class

[Package sp version 0.7-8 Index]