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inode

Joined: 27 Jan 2007
Posts: 127
Location: Austria

 Posted: Thu Feb 08, 2007 1:47 pm    Post subject: russian parametric surface formulas... 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... ---- 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] --- 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] --- 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
nextstep

Joined: 06 Jan 2007
Posts: 539

 Posted: Fri Feb 09, 2007 5:55 am    Post subject: 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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