数学图形(1.20)N叶草

有N个叶子的草

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vertices =
t = from  to (*PI)
r =
n = rand_int2(, )
p =  + cos(n*t) + sin(n*t)^
x = p*cos(t)
y = p*sin(t)

N叶草面_1

vertices = D1: D2:

u = from  to (PI*) D1
v = from 0.0 to 1.0 D2

r =
n = rand_int2(, )
p =  + v*cos(n*u) + sin(n*u)^

x = p*cos(u)
y = p*sin(u)

N叶草面_2

vertices = D1: D2:

u = from  to (PI*) D1
v = from 0.0 to 4.0 D2

r =
n = rand_int2(, )
p =  + cos(n*u) + sin(n*u)^*v

x = p*cos(u)
y = p*sin(u)