Polygon-class {sp} | R Documentation

## Class "Polygon"

### Description

class for spatial polygon

### Objects from the Class

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

### Slots

`ringDir`:

  Object of class `"integer"`; the ring direction of the ring (polygon) coordinates, holes are expected to be anti-clockwise

`labpt`:

  Object of class `"numeric"`; an x, y coordinate pair forming the label point of the polygon

`area`:

  Object of class `"numeric"`; the planar area of the polygon, does not respect projection as objects of this class have no projection defined

`hole`:

  Object of class `"logical"`; does the polygon seem to be a hole

`coords`:

  Object of class `"matrix"`; coordinates of the polygon; first point should equal the last point

### Extends

Class `"Line"`, directly.

### Methods

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

### Author(s)

Roger Bivand

### See Also

Polygons-class, SpatialPolygons-class

[Package sp version 1.2-3 Index]