# 35-tratteggi Postscript("35-tratteggi.ps",5,5) lato=c(0,5); par(bg="tan"); Grafica(lato,lato,cornice=T) abline(h=2.5) r=Rettangolo(asin=0.2+4.8i,2.1,0.8) polygon(r,density=10) r=r+2.5; polygon(r,density=16,angle=0) r=Rettangolo(bsin=0.2+2.7i,4.6,1) polygon(r,col="red") polygon(r,density=12,angle=30) t=seq(0,2*pi,by=0.01) e=Ellisse(t,2.3,0.6)+2.5+1.7i; polygon(e,col="green") polygon(e,density=12,angle=30) polygon(e,density=12,angle=150) r=Rettangolo(bsin=0.2+0.2i,4.6,0.7) polygon(r,col="yellow") polygon(r,density=20,angle=0,col="red") polygon(r,density=20,angle=90,col="red") dev.off()