[vtkusers] polydata possible bug

[Theodore Papatheodorou]

Thanks for your reply Brad. I am surprised about VTK not supporting 4D 
points... yes it is true about the 2D but I noticed that you can have 
vtkpoints->SetNumberOfComponents(int) and there you can set how many 
dimensions you have. what is the point of that if you can't save data?

Brad King wrote:

> Theodore Papatheodorou wrote:
>
>> Hi all,
>> I have noticed something lately which I think it is a bug. I am 
>> creating some 4D polydata structures. If I query one of the points it 
>> returns the correct coordinates. However when I try to save the 
>> polydata it treats it as a 3D dataset and saves only up to a certain 
>> point. So for example:
>> Instead of saving the data as:
>> x y z a,  x y z a, x y z a,.....
>> it saves it as:
>> x y z, a x y, z a x,....
>> Anybody encountered this before? Any solutions?
>
>
> VTK does not support 4D points.  Points are always specified in 3D, 
> even in a 2D data set.
>
> -Brad
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