Hi, I have a polygon layer (lakes) and I tried to use MINSIZE because I do not want to show small lakes (some pixels): LAYER NAME LAKE TYPE POLYGON STATUS On DATA "eu/eu_See" CLASS NAME "Lakes" MINSIZE 50 OUTLINECOLOR 0 0 128 COLOR 209 209 255 END END But nothing happened. All lakes are shown. Any ideas? Thanks, Korbai, Zoltan