encoding  utf-8

source buttery.th


layout l1
  scale 1 100
  layers off
  code metapost
beginpattern(pattern_water_UIS);
    fill water_UIS_path withcolor blue;
endpattern;

% water area symbol
def a_water_UIS (expr Path) =
  T:=identity;
  thclean Path;
  thfill Path withpattern pattern_water_UIS;
initsymbol("a_water_UIS");
enddef;
endcode
endlayout

select m1
export map -o buttery.pdf