<div dir="ltr"><div><div>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.<br><br></div>I do not know about any filter which would construct polydata from multiple source, but you can combine multiple polydata using vtkAppendPolyData filter.<br>
<br></div>Alex<br><div><div><div><div><div><div><br></div></div></div></div></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Apr 28, 2013 at 11:20 PM, Krzysztof Skrzynecki <span dir="ltr"><<a href="mailto:skrzynecki.krzysztof@gmail.com" target="_blank">skrzynecki.krzysztof@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Hello,<br></div>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? <br>
<br></div>Best wishes,<br></div>Krzysztof Skrzynecki</div>
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