[vtkusers] Not-parallel Image Data to PolyData/Unstructured Grid

[Alex Malyushytskyy]

AFAIK If your cells can refer the same node a few times ( more better) more
advantages you get from using Polydata over Unstructured grid. All the
difference is in memory used.

I do not know about any filter which would construct polydata from multiple
source, but you can combine multiple polydata using vtkAppendPolyData
filter.

Alex



On Sun, Apr 28, 2013 at 11:20 PM, Krzysztof Skrzynecki <
skrzynecki.krzysztof at gmail.com> wrote:

> Hello,
> I wonder if there is any function to make PolyData/Unstructured Grid from
> a lot of 2D Image Data. My problem is that images aren't parallel to each
> other, so i can't simply make 3D Structured Grid just by adding surfaces in
> appropriated order. I have information about position and rotation of their
> coordinates system in some other global coordinate system and i can image
> that VTK doesn't have simple function for this purpose. My question is it
> which 3D Data Type should I use (some surfaces could cross others when I'll
> build 3D structure). PolyData or Unstructured Grid?
>
> Best wishes,
> Krzysztof Skrzynecki
>
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