RF: stronger radiality constraint

gyral_structure/scripts/gs_fit

@@ -22,7 +22,7 @@ parser.add_argument('--wdyad', default=1., type=float,
                     help='Weight of the cost of alignment with dyads')
 parser.add_argument('--wdensity', default=1., type=float,
                     help='Weight of the cost of target density constraint across the surface')
-parser.add_argument('--wradial', default=0.1, type=float,
+parser.add_argument('--wradial', default=1, type=float,
                     help='Weight of the radial constraint on the surface fibre density')
 parser.add_argument('--wsmoothness', default=0., type=float,
                     help='Weight of the smoothness contraint on the orientation between neighbouring voxels')