I am using Mapserver v5.6 and used MapFile with 2 layers. One layer to show polygon and other to show label at ST_PointOnSurface of the same polygon... There are another way to show unique-label at POSITION CC of the polygon?
REPEATDISTANCE 9999 but no effect.
Even Mapserver v6 documentation have no instruction about "no-repeat" options.
The polygon-layer was tested (with no effect) with this mapfile fragment for label
LABEL ALIGN center FONT "ubuntu" TYPE TRUETYPE SIZE 15 POSITION CC COLOR 255 0 0 REPEATDISTANCE 9999 OUTLINECOLOR 50 200 60 END #label