Message-ID: <4721D27A.20206@ija.csic.es>
Date: 2007-10-26T11:41:46Z
From: Agustin Lobo
Subject: Boundary of SpatialGridDataFrame ?
Is it possible to get the boundary polygon
of a SpatialGridDataFrame object resulting from
a geotif image imported through rgdal?
My goal is to divide that rectangle
into two polygons defined by a
"SpatialLinesDataFrame" object (shp imported through
readOGR) and then overlay on the SpatialGridDataFrame object
to extract raster values from each polygon and compare.
Thanks!
Agus
--
Dr. Agustin Lobo
Institut de Ciencies de la Terra "Jaume Almera" (CSIC)
LLuis Sole Sabaris s/n
08028 Barcelona
Spain
Tel. 34 934095410
Fax. 34 934110012
email: Agustin.Lobo at ija.csic.es
http://www.ija.csic.es/gt/obster