花的图案 /*画旋转的椭圆*/ void elli(int xo,int yo,int a,int b,double theta) { int i; double da,c,s,ac,as,bc,bs,xf,yf,phi,x,y; theta=theta*0.01745; da=3*0.1745; c=cos(theta);s=sin(theta); ac=a*c;as=a*s;bc=b*c;bs=b*s; x=FNX2(0);y=FNY2(0); moveto(FNX(x),FNY(y)); for(i=1;i
