[vtkusers] vtkPoints and vector/matrix Operations like Eigen?

[Cory Quammen]

Yordan,

I think the closest thing to that kind of functionality in VTK is the
vtkArrayCalculator [1], but it is limited to vector-type operations,
not matrix-vector multiply, for instance.

If you like Python and NumPy, there is a Python adapter module that
lets you go between VTK data objects and NumPy with relative ease. See
[2] for details.

HTH,
Cory

[1] http://www.vtk.org/doc/nightly/html/classvtkArrayCalculator.html
[2] https://blog.kitware.com/improved-vtk-numpy-integration/

On Thu, Mar 30, 2017 at 3:41 PM, Kyosev, Yordan
<Yordan.Kyosev at hs-niederrhein.de> wrote:
> Hi,
>
>
>
> Is there any way or type vtkObject, which can perform vector/matrix
> operations like addition/substraction, multiplication with scalar,
> vector/scalar products,
>
> In the same way as Eigen do it?
>
>
>
> Now I am using vtkPoints->GetPoint     -> double[3]  -> Eigen::Vector3D
>
>
>
> Actually enough will be to have vtkPoint (single point) for this case.
>
> The vtkMath classes seems to be not nice for following complex equations…
>
>
>
> Best regards
>
>
>
> Yordan
>
>
>
>
>
>
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-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.