[Paraview] Where did vtkMultiGroupDataSet go?

Berk Geveci berk.geveci at kitware.com
Mon Mar 24 18:44:16 EDT 2008


This is not implemented yet. It is on our short-term list. Check back
in a few weeks.

-berk

On Mon, Mar 24, 2008 at 5:47 PM, Mike Jackson <imikejackson at gmail.com> wrote:
> Great. I have things generally working. I would like my users to use
>  the "Extract Block" filter to extract certain portions of the
>  dataset, but when I select that I see a list of blocks labeled "Block
>  0, Block 1". What do I have to set in order to get something more
>  "human understandable" in that list? Something like:
>    Simulation Limits
>    Dislocation Data
>
>
>  Thanks
>  --
>  Mike Jackson
>
>
>
>
>  On Mar 24, 2008, at 2:43 PM, Utkarsh Ayachit wrote:
>  > It's not needed anymore. If you are associating any meta-data with
>  > any mode in the multiblock dataset, simply use
>  > vtkCompositeDataSet::GetMetaData() to obtain the vtkInformation in
>  > which you can store the meta-data for that node.
>  >
>  > Utkarsh
>  >
>  > Mike Jackson wrote:
>  >> Thanks.. Looks like I am going to use the vtkMultiBlockDataSet as
>  >> the basis for my data.
>  >> I am writing a custom reader in ParaView 3(CVS HEAD) and I have
>  >> started the porting process of the old code. One of the first
>  >> things that I hit was this bit of code:
>  >>   vtkMultiGroupDataInformation* groupInfo =
>  >> vtkMultiGroupDataInformation::New();
>  >>   groupInfo->SetNumberOfGroups(2);   // Assuming you have 2 members
>  >>   vtkInformation* outInfo = outputVector->GetInformationObject(0);
>  >>   outInfo->Set(vtkCompositeDataPipeline::COMPOSITE_DATA_INFORMATION
>  >> (), groupInfo);
>  >>   outInfo->Set
>  >> (vtkStreamingDemandDrivenPipeline::MAXIMUM_NUMBER_OF_PIECES(), 1);
>  >>   groupInfo->Delete();
>  >> Is there a substitute for this or is this code even needed anymore?
>  >> --Mike Jackson   Senior Research Engineer
>  >> Innovative Management & Technology Services
>  >> On Mar 24, 2008, at 1:01 PM, Utkarsh Ayachit wrote:
>  >>> Filters/Readers/Sources primarily have two choices:
>  >>> * vtkMultiBlockDataSet
>  >>> * vtkHierarhicalBoxDataSet
>  >>>
>  >>> For any dataset comprising of unstructured grids,
>  >>> vtkMutliBlockDataSet is the way to go. vtkHierarchicalBoxDataSet
>  >>> can only be used for AMR data.
>  >>>
>  >>> Utkarsh
>  >>>
>  >>> Mike Jackson wrote:
>  >>>> Our data is read from a custom data file which contains multiple
>  >>>> time steps of unstructured grid data. We also produce from the
>  >>>> data file an outline of the data. (the outline is needed because
>  >>>> the data comes from a internal rotated coordinate system). So
>  >>>> basically for any given timestep I will have 1 unstructed grid
>  >>>> and one polydata object.
>  >>>>   Any suggestions on which of the new classes would be best to use?
>  >>>> --Mike Jackson   Senior Research Engineer
>  >>>> Innovative Management & Technology Services
>  >>>> On Mar 12, 2008, at 11:22 AM, Utkarsh Ayachit wrote:
>  >>>>> vtMutliGroupDataSet has been deprecated. Please refer to the
>  >>>>> following Wiki for details:
>  >>>>> http://www.vtk.org/Wiki/VTK/Composite_Data_Redesign
>  >>>>>
>  >>>>> Generally, the replacement for vtkMultiGroupDataSet would be
>  >>>>> vtkMultiBlockDataSet, but it depends on your application:
>  >>>>> whether the data is AMR or not.
>  >>>>>
>  >>>>> Utkarsh
>  >>>>>
>  >>>>> Mike Jackson wrote:
>  >>>>>> I am trying to update a set of filters/readers from PV 2.6.x
>  >>>>>> to PV 3 CVS and it seems that the vtkMultiGroupDataSet class
>  >>>>>> is not around any more? What would be the replacement for that
>  >>>>>> class?
>  >>>>>> Doing a "find . -type f -name "vtkMultiGroupDataSet*" " in the
>  >>>>>> paraview cvs source tree didn't seem to turn anything up.
>  >>>>>> Thanks
>  >>>>>> --Mike Jackson
>  >>>>>> imikejackson & gmail * com
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