[vtkusers] Surface from points

[Gib Bogle]

I'm looking at a dataset that is a collection of (x,y,z) points that lie on a 
complex surface.  The way the points are generated ensures that they are closely 
spaced.  I want to generate and render the 3D surface in VTK.  I'm guessing that 
this is a commonly-encountered situation, and I'm hoping that someone can give 
me a quick pointer to the best way to approach it.

The points are actually in the form of 540 z-slices, and in each slice there is 
a set of polygons, i.e. a set of (x,y) sequences.  The (x,y) point spacing is 
less than the (constant) z spacing.  (The slices were extracted from microscopic 
images.)  There are about 1,000,000 points.

Thanks.