[vtkusers] Thin_PlateSplineTransform

[Tim Hutton]

Karshi,

Yes, vtkThinPlateSplineTransform works in 3D. The Tcl examples should be 
all you need to use the class, if they don't make any sense then you need 
to get more familiar with VTK first by looking at some simpler examples. 
Learn to translate between Tcl and other languages, then all the examples 
become useful.

This is pseudocode for how to use the class to transform a vtkPolyData:

vtkPolyData poly
...
vtkPoints s
...
vtkPoints t
...

vtkThinPlateSplineTransform tps
tps SetSourceLandmarks s
tps SetTargetLandmarks t

vtkTransformPolyDataFilter transformer
transformer SetTransform tps
transformer SetInput poly

vtkPolyDataMapper mapper
mapper SetInput [transformer GetOutput]

...

Hope this is some use. VTK actually is well documented, the Tcl examples 
are your friend.

Tim.

At 13:38 17/03/2002 -0500, Karshi wrote:

>Hi all,
>
>  I  want to use the VTKThinPlateSplineTransform function , but am
>not sure if it works for 3D case.
>It sounds great for our project (non-linear transformation), but I have no
>idea how to use it, and there is no instruction either. I've looked some
>examples writen in Tcl , but it did not help me much.
>I would appreciate your help.
>Thanks
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