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Benjamin
Joined: 17 Mar 2008
Posts: 2
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 Posted: Sun May 25, 2008 9:33 am Post subject: how to put the forms of Triply Periodic Level Surfaces in .. |
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...k3dsurf?
http://www.msri.org/about/sgp/jim/geom/level/skeletal/index.html
could someone explain the first steps of the workflow or would it be the best idea to buy a "mathematica" handbook? 
i tried to copy paste the forms but it seems not to be so easy as that.
thx
Benjamin |
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ferrymelchels
Joined: 05 Jul 2008
Posts: 1
Location: Enschede, The Netherlands
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| Posted: Sun Jul 06, 2008 7:01 am Post subject: |
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Hi Benjamin,
This is very simple. You only have to write their 'short-coded formulas' such as cx out properly, so then you get this:
10.0*(cos(x)*cos(y) + cos(y)*cos(z) + cos(z)*cos(x))
- 5.0*(cos (x*2) + cos (y*2) + cos (z*2))
-14
and K3DSurf will make you a perfect Triply Periodic Surface.
Tip: By default, the x,y,z-range is set from -4 to +4, but if you make it -pi to +pi (just type in like that) or a multiple of it (e.g. -2*pi to 2*pi), you get an whole number of unit cells which looks nicer.
Cheers,
Ferry |
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Benjamin
Joined: 17 Mar 2008
Posts: 2
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| Posted: Sun Jul 06, 2008 8:30 am Post subject: |
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"short-coded formulas" is the cue!
thank you for sharing your knowledge,
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