...
Select one of the functions: constant (1.0), linear (radius-distance)/radius), square ((radius-distance)/radius)**2), cubic ((radius-distance)/radius)**3), cosinus ((cos(distance/radius)+1)/2)), distance (1/distance), distance_square (1/distance**2). The functions distance (1/d) and distance_square (1/d2) are independent of the specified search radius.
The weight functions for search radius 25.