Description Usage Arguments Details Value Author(s) See Also Examples
Geospoints objects contain data for one or more points defined by their longitude and latitude in decimal degrees. These objects can be read or write to ERSI shape files, or DBF database.
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x |
A 'geoshapes' object or a data frame with columns 'x' and 'y'
for longitudes and latitudes of the points in decimal degrees. For
|
File |
The path to a .shp (ESRI shape file) or .dbf (DBase) file to import |
format |
Either |
file |
The path to an ESRI file where to write data, without extension. Three files are created, with respective extensions .shp, .shx, and .dbf |
arcgis |
If |
... |
Further arguments passed to the functions (not used yet) |
geopoints()
converts a 'geoshapes' object or a data frame into a
'geopoints' object.
read.geoshapes()
and write.geoshapes()
read and write shapes
from or to ESRI shape files or DBase files on disk.
The 'geoshapes' objects have methods to print them, and to
add them to graphs (points at corresponding coordinates).
A 'geopoints' object is returned from geopoints()
and
read.geopoints()
. The other functions are used for their side-effect
rather than for returning something useful.
Philippe Grosjean <phgrosjean@sciviews.org>
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