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Re: parallel to a tabulated surface

  • To: mathgroup at smc.vnet.net
  • Subject: [mg84600] Re: parallel to a tabulated surface
  • From: Narasimham <mathma18 at hotmail.com>
  • Date: Sun, 6 Jan 2008 05:57:42 -0500 (EST)
  • References: <flk264$bqh$1@smc.vnet.net> <flnj93$jr1$1@smc.vnet.net>

On Jan 5, 2:39 pm, Jens-Peer Kuska <ku... at informatik.uni-leipzig.de>
wrote:
> Hi,
>
> interpolate it ?
>
> Regards
>    Jens
>
> Narasimham wrote:
> > How to find (X,Y,Z) for another parallel (Bertrand) surface at
> > distance c from defined surface r = (x,y,z ) = f(u,v)? Finding unit
> > vector of del r /del u  X del r /del v  along normal works for closed
> > form surfaces, but how to handle for a surface when input is given as
> > a table? TIA

Let us say in a simpler case surface normals of length 0.5 are erected
at {x,0,1,0.1} and {y,0,1,0.1} on surface z = Sin[Pi*x]* Sin[Pi*y},
what procedure is to be adopted in interpolation? Regards.


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