[vtkusers] cylinder + vtkPerspectiveTransform -> truncated cone

[Dean Inglis]

Hi Gib,

if you can model the center of your vessels as line polydata
with scalar values at the points corresponding to vessel inner
(or outer) radii, vtkTubeFilter might be a solution.

Dean



In my application I want to visualize a vessel network made of a large 
number
(order of 100k) of segments of tube, each segment being a truncated cone, 
i.e.
the diameter varies along the segment.  Searching for a way to make a 
truncated
cone, I saw a suggestion for making it from a cylinder, using
vtkPerspectiveTransform. I would appreciate some guidance on how to go about
this.  Because I'm rendering  a large number of these segments, I'd like to 
do
it as fast as possible.  Is there an example relevant to this task?

Thanks
Gib