algorithmic modeling for Rhino
Hi,
I am trying to set up a seiffert´s spherical spiral
http://www.wolframalpha.com/input/?i=Seiffert%E2%80%99s+spherical+s...*SpaceCurve.SeiffertsSphericalSpiral-
using the parametric equations.
I managed to do other sorts of spirals, but here I cant get a grip on the integral.
( http://mathworld.wolfram.com/JacobiEllipticFunctions.html )
Calculus has been a while. Any practical hints how to proceed besides reading http://en.wikipedia.org/wiki/Integral ?
Thanks,
Phillip
Tags:
iam not good at math, but probably to make it easier is to find equations for spherical coordinates :)
http://www.maa.org/joma/Volume8/Miller/Examples.html
It is said that this curve can be obtained by moving on a spherical surface with constant speed from top to bottom etc... this can be obtain by projecting & some intersecting, but probably that wont satisfy you.
http://wwwx.cs.unc.edu/~snape/publications/mmath/dissertation.pdf some more theory.
Hi Mateusz,
Indeed I was hoping to find a way to use the Intgral, but I guess now I will try to find a way using coodinates. Thanks for the links, I think this already helps.
Will let you now, If I figure out a more satisfying solution than projection.
Best,
Phillip
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