[Paraview] Fwd: plotting only the viewable part of a very large

[Felipe Bordeu Weldt]

thanks,

is just what I need.

Felipe

Début du message réexpédié :

> De : David E DeMarle <dave.demarle at kitware.com>
> Date : 28 avril 2010 18:15:32 HAEC
> À : Felipe Bordeu Weldt <felipe.bordeu at ec-nantes.fr>
> Cc : paraview at paraview.org
> Objet : Rép : [Paraview] plotting only the viewable part of a very  
> large
>
> Streaming and AdaptiveParaView do that like so:
>
> reader supplies meta information including piece bounding boxes
>
> a filter, vtkVisibilityPrioritizer, is inserted at the end of the  
> pipeline
>
> vtkVisibiltyPrioritizer gets the camera/viewport and the bounding
> boxes (if they are not transformed by the intermediate filters) and
> rejects pieces that are offscreen so that they are never
> read/processed at all
>
> AdaptiveParaView goes one step further and progressively increases the
> sampling resolution of each piece
>
> some very recent work by Jon Woodring @ LANL goes further and uses the
> screen resolution to improve the resolution sampling algorithm and
> works with unstructured data of a particular format
>
> Feel free to try/extend and or borrow from those two experimental
> ParaView applications.
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 28 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-371-3971 x109
>
>
>
> On Wed, Apr 28, 2010 at 11:53 AM, Felipe Bordeu Weldt
> <felipe.bordeu at ec-nantes.fr> wrote:
>> Hi everybody,
>>
>> I have a very large dataset (structuregrid). (1E4 X 1E4 X 1E4 X 3 )
>> I will like to know if is possible for the reader (home made  
>> reader) to know
>> the resolution of the screen and the volume of space that the  
>> camera is
>> looking at.
>>
>> I will like to generate de data only for the viewable portion of  
>> the space
>> (at the right resolution).
>>
>> The idea is to have something like "google hearth".
>>
>> Felipe_______________________________________________
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