[vtkusers] Best fit vtkQuadric?

[David Doria]

On Wed, Nov 18, 2009 at 2:37 PM, David Doria <daviddoria+vtk at gmail.com> wrote:
> On Thu, Nov 12, 2009 at 1:34 PM, David Doria <daviddoria+vtk at gmail.com> wrote:
>> Are there any functions to find the best fit quadric surface of a set of points?
>>
>> Thanks,
>>
>> David
>>
>
> Any thoughts on this? I have received a few off list comments like
> "let me know if you find out - I've been wanting to do this, too".
>
> Thanks,
>
> David
>

I gave this a first shot - it doesn't seem to work properly.

http://www.vtk.org/Wiki/Quadric_Surface_Fitting

I think it may be a problem with how I am constructing the vtkQuadric?
The example data set are some points from a sphere - the resulting
surface is a cylinder, which is obviously incorrect.

Thanks,

David