list; its components are objects of class gpc.poly-class.
encoding
character; encoding to be assumed for input strings. If the
value is "latin1" or "UTF-8" it is used to mark character
strings as known to be in Latin-1 or UTF-8: it is not used to re-encode
the input.
parent
tkwin; the parent window (optional).
Value
Queries and sets the ply (see Arguments),
poly.data, and poly.crop (see SetPolygonLimits)
components of Data.
Details
The text file representation of a polygon is of the following format:
x1 y1
x2 y2
...
x1 y1
x2 y2
...
The hole flag is either 1 to indicate a hole, or 0 for a regular contour.
See read.polyfile within the gpclib package for details.