Hi Marc I don't think QGIS can do this natively, although via the Grass plugin, you may be able to, as Grass can do this sort of thing.
I think your best option is to use GMT & GDAL/OGR. OGR can be used to export the shapefile into a variety of formats, including GMT. My preference is to use PostGIS for this sort of thing, as you have more flexibility, & generating a GMT point file is a simple SQL. Loading a shapefile into PostGIS can be done with ogr2ogr or with the shp2pgsql utility that comes with PostGIS. GMT can grid point data using a variety of algorithms & paramaters, & the native grid file format is netCDF, althiugh an export to ascii is easy enough as well. http://gmt.soest.hawaii.edu http://www gdal.org (go to the OGR page, & see the ogr2ogr utility) http://www.postgis.org Cheers, Brent Wood --- On Sun, 3/15/09, Marc Fischer <[email protected]> wrote: > From: Marc Fischer <[email protected]> > Subject: [Qgis-user] shape file to gridded > To: [email protected] > Date: Sunday, March 15, 2009, 7:00 PM > Folks, > > I have polygons in a shape file with an attribute that > I'd like to distribute on a geographic grid and then > export to netcdf or ascii. I've done this in Arcview > using Spatial Analyst Extension. > > Is there a way to do this in QGIS? > > Best, > > Marc > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
