gpc.poly.nohole-class | R Documentation |
A class for representing polygons with multiple contours but without holes.
Objects can be created by calls of the form
‘new("gpc.poly.nohole", ...) or by calling read.polyfile
’.
Object of class “list”. See the help for “gpc.poly” for details.
Class “gpc.poly”, directly.
signature(from = "numeric", to = "gpc.poly.nohole")
: ...
This class is identical to “"gpc.poly"” and is needed because the
file formats for polygons without holes is slightly different from the
file format for polygons with holes. For a “gpc.poly.nohole”
object, the hole
flag for each contour is always FALSE
.
Also, write.polyfile
will write the correct file format,
depending on whether the object is of class “gpc.poly” or
“gpc.poly.nohole”.
Roger D. Peng
gpc.poly-class
## None
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.