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MathGroup Archive 2008

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reconstruction of 3D grid with connectivity

  • To: mathgroup at smc.vnet.net
  • Subject: [mg91396] reconstruction of 3D grid with connectivity
  • From: Narasimham <mathma18 at hotmail.com>
  • Date: Wed, 20 Aug 2008 04:03:38 -0400 (EDT)

For surface ParametricPlot3D[{x = f(u,v), y = g(u,v), z = h(u,v)},
{u,umin,umax,ustep},{v,vmin,vmax,vstep}]

how to obtain the connectivity matrix (when u and v  are each
incremented by given ustep and vstep), using Delaunay or Voronoi
triangulations? In this case there would be curved or skewed
quadrilaterals instead of triangles that discretizes the surface.When
connectivity matrix and coordinate matrix are given with each  point
ID reference number, the surface should be  reconstructed, i.e.,
plotted, and/or Shown without again giving out the above command.

Thanks in advance,

Narasimham



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