-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/04/2010 05:49 PM, Hamish wrote: > Rainer wrote: >> Just another idea - an iterative approach in a script, >> which is using v.random and to discard all points outside >> the polygon and to repeat it until you have the number of >> random points you need. This could be made faster, by using a >> MASK based on the polygon which has been grown to >> encapsulate the whole polygon, and to use on this setup >> r.random, also iterative. > > > see the v.random.cover script already in grass-Addons for this. > :-)
I always love to find out if my ideas have already been implemented in GRASS or other software - it never happened to me with proprietary software. > > r.random points would be not-as-random, as results will all be > aligned to the raster grid, possibly introducing aliasing > problems. True - I haven't considered that. Thanks, Rainer > > > Hamish > > > > - -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Natural Sciences Building Office Suite 2039 Stellenbosch University Main Campus, Merriman Avenue Stellenbosch South Africa Tel: +33 - (0)9 53 10 27 44 Cell: +27 - (0)8 39 47 90 42 Fax (SA): +27 - (0)8 65 16 27 82 Fax (D) : +49 - (0)3 21 21 25 22 44 Fax (FR): +33 - (0)9 58 10 27 44 email: [email protected] Skype: RMkrug -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkzS+2cACgkQoYgNqgF2egrB1ACfQsY4hgnFJ2YZNEoStezQicQT uM4Anj8HhsIEHKwl69+S7EAJY+I+cjU2 =8wWS -----END PGP SIGNATURE----- _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
