Hi,
due to the fact that I'm just converting some free available data-sets
to SpatialPolygonsList objects containing country/province/county
polygons (each polygon can be identified by an unique name) I wonder
if there is a recommendation/example how to store such data in a
single R object similar to Roger Bivand's wrld_simpl in order to share
these objects.
The structure should be organized in such a way that the user can
choose e.g. to:
- show only the national boundary of a country
- show the national boundary plus province ones (admin level 1 - if
available)
- show the national boundary plus province ones plus county ones
(admin level
2 - if available)
- show any combination of selected polygons coming from different
admin levels
- etc.
Should one make usage of several R objects?
How to set up a name attribute
(COUNTRY:ADMIN_LEVEL_1_NAME:ADMIN_LEVEL_2_NAME)?
Or maybe, how to extend Roger Bivand's wrld resp. wrld_simpl database
including a chance to name each single polygon representing an island?
Any comments or suggestions?
Kind regards,
--Hans
**********************************************************
Hans-Joerg Bibiko
Max Planck Institute for Evolutionary Anthropology
Department of Linguistics
Deutscher Platz 6 phone: +49 (0) 341 3550 341
D-04103 Leipzig fax: +49 (0) 341 3550 333
Germany e-mail: bib...@eva.mpg.de
_______________________________________________
R-sig-Geo mailing list
R-sig-Geo@stat.math.ethz.ch
https://stat.ethz.ch/mailman/listinfo/r-sig-geo
