Using political country boundaries / areas to mask a grid

From: cyril caminade <cyril.caminade00_at_nyahnyahspammersnyahnyah>
Date: Thu, 18 Jun 2009 14:58:14 +0100


I'm trying to use the earth3.0 / ezmap dataset to mask a specific country on
a regular grid
This is relatively easy to do for a plot (graphic object) using the
appropriate map ressources to fill / mask a specific country
How can i use this dataset to check if a specific grid point X(ilat,ilon) is
included in a specific country and so attribute the country name
to this specific coordinates
then i could sort the values like ilat ilon Val Country_name
or mask a specific area consistent with the political boundaries (then i can
compute an index or whatever for this specific country)

Thanks for your help

Cyril Caminade
University of Liverpool, Department of Geography, Roxby Building, P.O. Box
147, Liverpool, L69 7ZT, UK
Tel: 00 44 (0)151 794 2567

ncl-talk mailing list
List instructions, subscriber options, unsubscribe:
Received on Thu Jun 18 2009 - 07:58:14 MDT

This archive was generated by hypermail 2.2.0 : Fri Jun 19 2009 - 13:23:26 MDT