[vtkusers] Are point clouds defined as Unstructured Points

Cally K kalpana0611 at gmail.com
Mon Apr 28 07:58:40 EDT 2008


Dear Amy

Thanks for the reply, I would like to clarify some other issues as well as
mentioned In the VTK book - The Visualization Toolkit An Object-Oriented
Approach To 3D Graphics, Kitware. What is the difference between Polygonal
Data and Unstructured grid, in terms of memory allocation. Sorry, its a
beginner question, but i kinda need the information, any other help on data
formats would be good also.


On 4/14/08, Amy Squillacote <ahs at cfdrc.com> wrote:
>
> Hi Cally,
>
> Are you using vtkPointSource to generate a point cloud? If so, the point
> cloud generated is a vtkPolyData. If you're creating the point cloud by
> hand, you could make it either a vtkPolyData or a vtkUnstructuredGrid.
>
> - Amy
>
> Cally K wrote:
>
> > Hi gys,
> >   Just some theory questions to ask.. I have to write a paper on data
> > formats. I found alot of information from the book
> >
> > The Visualization Toolkit An Object-Oriented Approach To 3D Graphics,
> > Kitware.
> >
> > However, I would still like to clarify some stuff, does point cloud come
> > under the term unstructured points. Any other papers that I can refer to
> > ..beside the book. I have read the file formats.
> >
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>
> --
> Amy Squillacote                    Phone: (256) 726-4839
> Computer Scientist                 Fax: (256) 726-4806
> CFD Research Corporation           Web: http://www.cfdrc.com
> 215 Wynn Drive, Suite 501
> Huntsville, AL  35805
>
>
>
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