interface_build {
    {s.kernel} 0
    {Create raster density map from sites, using moving Gaussian kernel.}
    {entry input {Sites file:} 0 site}
    {entry output {Raster density map:} 0 raster}
    {entry stddeviation {Standard deviation in map units:} 0 ""}
    {checkbox -d {Consider distances.} "" -d}
}