interface_build {
    {i.zc} 0
    {Zero-crossing "edge detection" raster function for image processing.}
    {entry input {Input raster map:} 0 raster}
    {entry output {Output raster map:} 0 raster}
    {entry width {x-y extent of the Gaussian filter [9]:} 0 ""}
    {entry threshold {Sensitivity of Gaussian filter [10]:} 0 ""}
    {entry orientations {Number of azimuth directions categorized [1]:} 0 ""}
}