[vtkusers] image surface normals.help!!!!

[Amy Squillacote]

Hi Kiv,

Try using the vtkPolyDataNormals filter, and turn on the 
ComputeCellNormals flag. The on-line documentation for the class is 
here: http://www.vtk.org/doc/release/5.0/html/a01886.html.

- Amy

kývýlcým helhel wrote:
> Hi,
> I am new vtk, and I did not found enough sources, I try to understand 
> from codes
> I work on face images  I need to find the surface normals of this face 
> images The images are includes x,y,z coordinates.The file format is
> x1 x2 x3.......xn
> y1 y2 y3......yn
> z1 z2 z3........zn
>
> I need to read this file and I must find the surface normals of  
> images for my project. I found a code that read the .txt file and 
> return a vtkPolyData. After this step what can I do to find surface 
> normals???
>
> Thanks
> Kiv
>
>
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-- 
Amy Squillacote                    Phone: (256) 726-4839
Computer Scientist                 Fax: (256) 726-4806
CDF Research Corporation           Web: http://www.cfdrc.com
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Huntsville, AL  35805