| get.cntdata {RArcInfo} | R Documentation |
This function reads and imports into R the contents of a polygon centroid information file.
get.cntdata(datadir, coverage, filename="cnt.adf")
datadir |
Directory under which all the coverages and a directory called 'info' are. |
coverage |
The name of the coverage we want to work with. |
filename |
The name of the file in the coverage directory that stores the data (usually called 'cnt.adf'). |
This functions returns a list with two elements. The first one is a data frame with the next fields (columns):
PolygonID |
The polygon itself. |
CoordX |
An array with the X coordinates of the centroid. |
CoordY |
An array with the Y coordinates of the centroid. |
NLabels |
The number of labels this polygon has. |
The second element in the list is an array with the label identifiers related
to this polygon.
More information about this kind of data can be found at http://pages.infinit.net/danmo/e00/docs/v7_bin_cover.html.