size(4.5cm,0); import patterns; //settings.outformat="pdf"; add("hachure1",hatch(H=1mm,dir=N,p=green)); add("hachure2",hatch(H=2mm,dir=SW,p=red)); add("hachure3",hatch(H=3mm,dir=SE,p=blue)); add("hachure4",hatch(H=4mm,dir=S,p=yellow)); real a=2.5; filldraw(unitcircle,pattern("hachure1"),1bp+lightgreen); filldraw(shift(a,0)*unitcircle,pattern("hachure2"),1bp+lightred); filldraw(shift(0,-a)*unitcircle,pattern("hachure3"),1bp+lightblue); filldraw(shift(a,-a)*unitcircle,pattern("hachure4"),1bp+lightyellow); //shipout(bbox(3mm,white)); //shipout(bbox(2mm,invisible),"pdf");