1% Testing divand in 2 dimensions with relative correlation length. 2 3% grid of background field 4[xi,yi] = ndgrid(linspace(-1,1,30)); 5 6x = 0; 7y = 0; 8f = 1; 9 10mask = ones(size(xi)); 11pm = ones(size(xi)) / (xi(2,1)-xi(1,1)); 12pn = ones(size(xi)) / (yi(1,2)-yi(1,1)); 13 14 15 16u = ones(size(xi)); 17v = u; 18 19a = 5; 20u = a*yi; 21v = -a*xi; 22 23L = 0.2 * ones(size(xi)); 24%L = 0.2 * ones(size(xi)); 25L = 0.4 * (2 - xi); 26 27fi = divand(mask,{pm,pn},{xi,yi},{x,y},f,L,200); 28 29 30if any(fi(1,:) < fi(end,:)) 31 error('unexpected values'); 32end 33 34% Copyright (C) 2014 Alexander Barth <a.barth@ulg.ac.be> 35% 36% This program is free software; you can redistribute it and/or modify it under 37% the terms of the GNU General Public License as published by the Free Software 38% Foundation; either version 2 of the License, or (at your option) any later 39% version. 40% 41% This program is distributed in the hope that it will be useful, but WITHOUT 42% ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 43% FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 44% details. 45% 46% You should have received a copy of the GNU General Public License along with 47% this program; if not, see <http://www.gnu.org/licenses/>. 48