[Paraview] Mesh edition / modification with paraview

[cyril giraudon]

Thanks David for your answer,

Can the output of a filter be the input once modified and without a copy ?
(I don't want to create a new vtkDataSet each time an operation is executed)

I'd like to handle a huge amount of data (1000^3 cubes minimum), is the
IO operation can be a problem for the save to disk task of the mesh ?

Cheers,

Cyril.


David E DeMarle a écrit :
> Yes.
>
> ParaView stores data in vtkDataSets, and each filter in ParaView takes
> in one or more vtkDataSets, looks at them, and produces one or more
> vtkDataSets (often by shallow copying the inputs).
>
> If you understand the vtkDataSet and vtkAlgorithm API's well enough,
> the operations you describe are fairly easy to accomplish. (See the
> python programmable filter wiki page for examples).
>
> However, providing a good UI that lets the user control which parts of
> the DataSet geometry and topology are modified is not altogether
> trivial. That would probably require significant use of vtkWidgets to
> create the visual editing tools, ParaView's Proxy/Property pattern to
> map the tools behavior over to the server side filter properties, and
> how ParaView's QT ObjectPanel interfaces exposes properties in the
> client application.
>
>
> On Fri, Feb 13, 2009 at 11:09 AM, Cyril Giraudon <cyril.giraudon at free.fr> wrote:
>   
>> Hello,
>>
>> Paraview is very well known in the data visualisation area.
>>
>> However, I'd like to know whether it is possible to write a plugin able to
>> modify a mesh, for instance to move a selected point of a mesh.
>> By extension, would it be possible to use paraview (with a new plugin) to
>> edit a structured orthogonal mesh in order to add/remove an edge, a face or
>> an element (a cube) ?
>>
>> Thanks a lot,
>>
>> Cyril Giraudon.
>>
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