Scaling filter (like Linear, Lanczos) to be used for scaling images and grids.
// Java public TGIS_ScalingFilter getAntialiasFilter();
// Oxygene public property AntialiasFilter : TGIS_ScalingFilter read;
It is treated just as a suggestion. If layer has an Antialias=True and antialiasing is not managed by layer driver then a selected filer will be used.