use wish581_polygonmodulo.nc
polygon/fill/line/hlimits=0:450:30/vlimits=-90:90:30 ME_X_PAGE,ME_Y_PAGE,ME_VAL

message


let/title=longitude/units=degrees_east xt=ME_X_PAGE
let/title=latitude/units=degrees_north yt=ME_Y_PAGE

polygon/fill/line/hlimits=0:450:30/vlimits=-90:90:30 xt,yt,ME_VAL