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inode
Joined: 27 Jan 2007
Posts: 127
Location: Austria
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 Posted: Thu Feb 08, 2007 1:47 pm Post subject: russian parametric surface formulas... |
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hello to all
Just found an interesting site with some nice parametric surface formulas...
http://arbuz.uz/u_bottle.html
I can't read the names of the figures because i cant read russian,
but you know, a picture say more than thousand words...
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I simplified this formula:
X = cos(u)*(4+3*sin(v)*cos(u)-3*sin(2*v)*sin(u)/2)
Y = sin(u)*(4+3*sin(v)*cos(u)-3*sin(2*v)*sin(u)/2)
Z = 5*sin(u)*sin(v)+5*cos(u)*sin(2*v)
With U[ -pi, pi] And V[ 0, 8]
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name = peakhill
X = u+v
Y = v-u
Z = (u*u+v*v)^0.5-1*sin(u)^6*3*cos(v)^6
With U[ -9, 9] And V[ -8, 8]
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btw. I know that will be some work...
would be great to load formulas direct from a textfile
into the edit fields.
 Gerd
ps. another page is http://arbuz.uz/u_3dgrapher.html |
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nextstep
Site Admin
Joined: 06 Jan 2007
Posts: 539
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| Posted: Fri Feb 09, 2007 5:55 am Post subject: |
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Hi all,
Thanks for the link  . Parametric surface are very beautiful and easy to compute, however there formulas are more "difficult" to create than isosurfaces (from my point of view).
_________________
Cheers,
Abderrahman |
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