You can do that with EXPRESSION and ANGLE.
I am not sure if this works with KML - maybe you need to convert to
shapefile before (eg. with ogr2ogr).
LAYER
NAME WINDS
EXTENT -180 -90 180 90
TYPE POINT
CONNECTIONTYPE ogr
CONNECTION C:/MapData/maps/KML/wind1.kml
DATA wind1
Kaipi,
Thanks - that's really helpful.
The use of EXPRESSION([ATTRIBUTE_FIELD]] = '...') and ANGLE[ROTATION] will
solve half of my problem. It looks like the other half is a GDAL/OGR issue,
not Mapserver. The KML IconStyle element of a point appears to be ignored
by ogr (and by ogr2ogr). I
