On Tue, Feb 24, 2015 at 9:19 AM, Markus Metz <[email protected]> wrote: > On Mon, Feb 23, 2015 at 1:05 PM, RichardCooper <[email protected]> > wrote: >> Hi, >> >> I'm trying to determine the default method of rasterization used by v.to >> rast. >> >> In the v.to.rast manual it states in relation to the -d option, that 'All >> cells touched by the line will be set, not only those on the render path', >> but I'm not certain which method is being used by default. > > The -d option applies only to lines, default is only those on the > render path (thin line). > >> >> I came across a paper by Biagi and Negretti >> <http://geomatica.como.polimi.it/workbooks/n2/articoli/lbmn.pdf> * which >> describes how by default vectors are rasterized in GRASS 5. The latter >> authors refer to the 'center' method as being the standard GRASS command in >> 5.0 (p. 4). Is this used in GRASS 7? From my observation (in the Map >> Display), by default, vector area appear to be rasterized if the center of >> the grid cell falls within the area boundary? > > Yes, or the other way around: a grid cell belongs to the area where > the grid cell's center falls into.
I've made an attempt to add that to the manual (r64752 and r64753). markusN _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
