Question

我生成一个1到100范围内的数字。该数字应位于pos = vec(0,0,0)的第一个坐标中（因此在x轴上）。其他轴应保持为0。如何将生成的数字转移到该点？

from vpython import*
from random import randint



#Sonne
sun = sphere(pos = vec(0,0,0), radius = 9, make_trail = True ) 
sun.mass = 2e30   
sun.velocity = vec(0,0,0)

#Merkur
mercury_pos_x = randint(1, 100)
mercury = sphere(pos = vec(mercury_pos_x,0,0), radius = 5, color=color.red, make_trail = True ) 
mercury.mass = 3.25e23
mercury.velocity = vec(0,0,-47000)

#Venus
venus_pos_x = randint(1, 100)
venus = sphere(pos = vec(venus_pos_x,0,0), radius = 6, color=color.cyan, make_trail = True ) 
venus.mass = 4.9e24
venus.velocity = vec(0,0,-35000)

Answer 1

我怀疑您希望每个行星都有一个不同的随机起点，使太阳保持在（0,0,0）。对于两个随机数，您需要调用两次random，每次都保留该值以备后用。

merc_pos = randint(1, 100)
mercury = sphere(pos = vec(merc_pos,0,0), radius = s_rad1/2,
                 color=color.red, make_trail = True ) 

venus_pos = randint(1, 100)
venus = sphere(pos = vec(venus_pos,0,0), radius = s_rad1/1.8,
               color=color.cyan, make_trail = True )

如果您不想在其他地方使用随机值，则可以将其插入到位：

mercury = sphere(pos = vec(randint(1, 100),0,0), radius = s_rad1/2,
                 color=color.red, make_trail = True )

如何使用/插入生成的随机数？

1 个答案: