[Paraview] Reader with Multiple Outputs
John Biddiscombe
biddisco at cscs.ch
Wed Jan 31 03:36:52 EST 2007
Sean
When you do want to make changes (export multiple actual groups), please
keep me in the loop. What you want should be very easy to add as all the
logic is already in place (ie send me an example file and I'll do it:).
NB. the svn repository here
https://svn.cscs.ch/vtkContrib/trunk/vtkCSCS/
is updated reasonably regularly as I add things. the netCDF code had a
bit of work done a few weeks ago to allow the loading of vector data as
{u,v,w} where dimensions (of the vector plus data extents) are specified
according to the OpenDX standard (openDX reads netCDF and uses certain
conventions to do it)
JB
> Well, I don't know when it was introduced, but if a
> vtkMultiGroupDataSet is indeed the correct solution for you, one
> example of its use is in the vtkCSCSNetCDF reader
> (http://www.cscs.ch/a-display.php?id=1168).
>
> In theory, it uses MultiGroup's to output NetCDF variables whose
> dimensions don't match. I say "in theory" because it currently only
> outputs the one group with the most dimensions and ignores all the
> rest, but it should work once fully implemented. The CSCS web page
> says they plan to add that feature, but I may be adding it myself soon
> for my own needs. Anyway, it seems to be a good reference for using
> MultiGroups.
>
> -Sean
>
> Mike Jackson wrote:
>> Is that a newish class? since vtk 5.0 or so because I don't have that
>> class listing in my documentation download...
>>
>> But it does look like what I might have used.
>>
>> Thanks
>> --Mike Jackson Senior Research Engineer
>> Innovative Management & Technology Services
>>
>>
>> On Jan 30, 2007, at 3:18 PM, Amy Squillacote wrote:
>>
>>>
>>>
>>> Mike Jackson wrote:
>>>> I could, if I knew what a MultiGroup was? ;-)
>>> From the nightly-generated VTK doxygen pages:
>>> http://www.vtk.org/doc/nightly/html/classvtkMultiGroupDataSet.html.
>>>
>>> - Amy
>>>>
>>>> I looked in the vtkDocs for 5.x and didn't find the class. I have
>>>> since figured out how to apply some scalar data attributes to the
>>>> data and I can threshold based on the scalar values at that point.
>>>>
>>>> Thanks for the info.. I'll look into MultiGroup later this
>>>> afternoon...
>>>>
>>>> --Mike Jackson Senior Research Engineer
>>>> Innovative Management & Technology Services
>>>>
>>>>
>>>> On Jan 30, 2007, at 2:56 PM, Sean Ziegeler wrote:
>>>>
>>>>> Can you not create each data set in a separate group (i.e.,
>>>>> vtkMultiGroup), or am I misunderstanding the problem?
>>>>>
>>>>> -Sean
>>>>>
>>>>> Berk Geveci wrote:
>>>>>> ParaView does not support this yet. We will be adding this
>>>>>> feature to
>>>>>> paraview 3 next month.
>>>>>> -berk
>>>>>> On 1/30/07, Mike Jackson <mike.jackson at imts.us> wrote:
>>>>>>> Can I write a reader that has multiple outputs? Ie.. I am reading
>>>>>>> some data and converting it to vtkPolyData and I want to segregate
>>>>>>> the data. I was thinking of having a pair of vtkPolyData
>>>>>>> Objects, one
>>>>>>> to hold each type of "data".
>>>>>>>
>>>>>>> If this is possible, is there an example I can look at?
>>>>>>>
>>>>>>> THanks
>>>>>>>
>>>>>>> --Mike Jackson Senior Research Engineer
>>>>>>> Innovative Management & Technology Services
>>>>>>>
>>>>>>>
>>>>>>>
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>>>>>>>
>>>>
>>>>
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>>
>>
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--
John Biddiscombe, email:biddisco @ cscs.ch
http://www.cscs.ch/about/BJohn.php
CSCS, Swiss National Supercomputing Centre | Tel: +41 (91) 610.82.07
Via Cantonale, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82
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