Sring-class {sp} | R Documentation

## Class "Sring"

### Description

class for spatial polygon

### Objects from the Class

Objects can be created by calls to the function `Sring`

### Slots

`ringDir`:
  Object of class `"integer"`; the ring direction of the ring coordinates, holes are expected to be anti-clockwise
`labpt`:
  Object of class `"numeric"`; an x, y coordinate pair forming the label point of the ring
`area`:
  Object of class `"numeric"`; the area of the ring
`hole`:
  Object of class `"logical"`; does the ring seem to be a hole
`coords`:
  Object of class `"matrix"`; coordinates of the polygon; first point should equal the last point
`bbox`:
  Object of class `"matrix"`; see Spatial-class
`proj4string`:
  Object of class `"CRS"`; see CRS-class

### Extends

Class `"Sline"`, directly. Class `"Spatial"`, by class `"Sline"`.

### Methods

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

### Note

### Author(s)

Roger Bivand

### References

### See Also

Srings-class, SpatialRings-class

### Examples

[Package sp version 0.7-8 Index]