matlab中画花瓣,【原创】使用matlab绘制菊花和玫瑰花

一，用matlab绘制菊花

在command窗口复制下列代码，按回车运行即可

%data base

t0=linspace(0,2*pi);

for i=1:100

if rem(i,4)==0

t1(i)=NaN

else t1(i)=t0(i)

end

if rem(i,4)==2

t2(i)=NaN

else t2(i)=t0(i)

end

end

p=linspace(0,0.25*pi);

[xx,yy]=meshgrid(-2:0.05:2);

[xxx,yyy]=meshgrid([0.01 0.01]);

%drawing process

for i=1:10

if rem(i,2)==0

a=t1

elseif rem(i,2)==1

a=t2

end

b=p

[a,b]=meshgrid(a,b)

q=i*cos(1.25*b).*sin(b)

[x,y,z]=sph2cart(a,b,q);

z=(7.5/i+0.25)*z

surf(x,y,z,31*ones(size(z)))

hold on

end

h=0.25*cos(2.5*(xx.^2+yy.^2).^0.5)+0.14;

surf(xx,yy,h,26*ones(size(h)));

hold on

c=zeros(size(xxx))

for i=1:50

surf(xxx,yyy,c,i*ones(size(c)))

hold on

end

axis equal

二