On Wed, 6 Dec 2006, Sebastian P. Luque wrote:
> On Wed, 06 Dec 2006 14:00:38 -0600,
> "Sebastian P. Luque" <[EMAIL PROTECTED]> wrote:
>
> > On Wed, 6 Dec 2006 20:28:42 +0100 (CET),
> > Roger Bivand <[EMAIL PROTECTED]> wrote:
>
> [...]
>
> >> names <- sapply(slot(canada_sp, "polygons"), function
On Wed, 06 Dec 2006 14:00:38 -0600,
"Sebastian P. Luque" <[EMAIL PROTECTED]> wrote:
> On Wed, 6 Dec 2006 20:28:42 +0100 (CET),
> Roger Bivand <[EMAIL PROTECTED]> wrote:
[...]
>> names <- sapply(slot(canada_sp, "polygons"), function(i) slot(i, "ID"))
>> canada_spdf <- SpatialPolygonsDataFrame(can
On Wed, 6 Dec 2006 20:28:42 +0100 (CET),
Roger Bivand <[EMAIL PROTECTED]> wrote:
[...]
> canada <- map("world2Hires", "Canada", fill=TRUE, plot=FALSE)
> fill=TRUE retrives polygons, otherwise you get line segments. For this
> example it now works. You can also make several retrieved island belon
On Wed, 6 Dec 2006, Sebastian P. Luque wrote:
> Hi,
>
> Trying to extract a map (package maps) to a shapefile, IIUC the procedure
> is to get it into a SpatialPolygonsDataFrame and then use
> writePolyShape(). This seems to require an intermediate step through
> SpatialPolygons. However, I'm ru
Hi,
Trying to extract a map (package maps) to a shapefile, IIUC the procedure
is to get it into a SpatialPolygonsDataFrame and then use
writePolyShape(). This seems to require an intermediate step through
SpatialPolygons. However, I'm running into some problems:
R> canada <- map("world2Hires",
