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x=50*t
y=10*sin(t*360)
z=0

Ãû³Æ£ºÂÝÐýÏß(Helical curve)
½¨Á¢»·¾³£ºPRO/E£»Ô²Öù×ø±ê£¨cylindrical£©
r=t
theta=10+t*(20*360)
z=t*3

ºûµûÇúÏß
Çò×ø±ê PRO/E
·½³Ì£ºrho = 8 * t
theta = 360 * t * 4
phi = -360 * t * 8

Rhodonea ÇúÏß
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theta=t*360*4
x=25+(10-6)*cos(theta)+10*cos((10/6-1)*theta)
y=25+(10-6)*sin(theta)-6*sin((10/6-1)*theta)

Ô²ÄÚÂÝÐýÏß
²ÉÓÃÖù×ù±êϵ
theta=t*360
r=10+10*sin(6*theta)
z=2*sin(6*theta)

½¥¿ªÏߵķ½³Ì
r=1
ang=360*t
s=2*pi*r*t
x0=s*cos(ang)
y0=s*sin(ang)
x=x0+s*sin(ang)
y=y0-s*cos(ang)
z=0

¶ÔÊýÇúÏß
z=0
x = 10*t
y = log(10*t+0.0001)

ÇòÃæÂÝÐýÏߣ¨²ÉÓÃÇò×ø±êϵ£©
rho=4
theta=t*180
phi=t*360*20

Ãû³Æ£ºË«»¡Íâ°ÚÏß
¿¨µÏ¶û×ø±ê
·½³Ì£º l=2.5
b=2.5
x=3*b*cos(t*360)+l*cos(3*t*360)
Y=3*b*sin(t*360)+l*sin(3*t*360)

Ãû³Æ£ºÐÇÐÐÏß
¿¨µÏ¶û×ø±ê
·½³Ì£º
a=5
x=a*(cos(t*360))^3
y=a*(sin(t*360))^3

Ãû³Æ:ÐÄÔàÏß
½¨Á¢»·¾³:pro/e,Ô²Öù×ø˜Ë
a=10
r=a*(1+cos(theta))
theta=t*360

Ãû³Æ:Ò¶ÐÎÏß
½¨Á¢»·¾³:µÑ¿¨¶ù×ø˜Ë
a=10
x=3*a*t/(1+(t^3))
y=3*a*(t^2)/(1+(t^3))

µÑ¿¨¶ù×ø±êϵÄÂÝÐýÏß
x = 4 * cos ( t *(5*360))
y = 4 * sin ( t *(5*360))
z = 10*t

Ò»Å×ÎïÏß
µÑ¿¨¶ù×ø±ê
x =(4 * t)
y =(3 * t) + (5 * t ^2)
z =0

Ãû³Æ:µúÐε¯»É
½¨Á¢»·¾³:pro/e
Ô²Öù×ø
r = 5
theta = t*3600
z =(sin(3.5*theta-90))+24*t


·½³Ì: °¢»ùÃ×µÂÂÝÐýÏß
x = (a +f sin (t))cos(t)/a
y = (a -2f +f sin (t))sin(t)/b

[ Last edited by laizuliang on 2007-12-19 at 08:14 ]
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