[Paraview] vtkCellLocator: Python
Eric E. Monson
emonson at cs.duke.edu
Mon May 31 15:15:54 EDT 2010
Hey Bastian,
I think you should be able to just use the Get() method to pull out that information key. When I want to find current time step information on some pipeline data (with a programmable filter), which has information that looks like this:
vtkInformation (0x11dd723d0)
Debug: Off
Modified Time: 70754
Reference Count: 2
Registered Events: (none)
DATA_NUMBER_OF_GHOST_LEVELS: 0
DATA_TIME_STEPS: 0
DATA_PIECE_NUMBER: 0
DATA_EXTENT_TYPE: 0
DATA_NUMBER_OF_PIECES: 1
I can do it with these commands:
pdi = self.GetInputDataObject(0,0)
current_time = pdi.GetInformation().Get(pdi.DATA_TIME_STEPS(),0)
So you might be able to just put NAME() in where I put DATA_TIME_STEPS().
Talk to you later,
-Eric
------------------------------------------------------
Eric E Monson
Duke Visualization Technology Group
On May 31, 2010, at 1:23 PM, Bastil2001 at yahoo.de wrote:
> Thanks Utkarsh,
>
> the required information is in MetaData:
>
> print iter.GetCurrentMetaData()
>
> vtkInformation (0x3808f00)
> Debug: Off
> Modified Time: 269417
> Reference Count: 2
> Registered Events: (none)
> DONT_PRUNE: 1
> NAME: my_given_name
>
> Now I want to work with the NAME-Attribute (my_given_name) but I don't know how to get this into a variable? I can't find a GetName()-Method...
>
> print dir(iter.GetCurrentMetaData())
>
> ['AddObserver', 'Append', 'AppendUnique', 'BreakOnError', 'Clear', 'Copy', 'CopyEntries', 'CopyEntry', 'DebugOff', 'DebugOn', 'FastDelete', 'Get', 'GetAddressAsString', 'GetClassName', 'GetDebug', 'GetGlobalWarningDisplay', 'GetKey', 'GetMTime', 'GetNumberOfKeys', 'GetReferenceCount', 'GetRequest', 'GlobalWarningDisplayOff', 'GlobalWarningDisplayOn', 'Has', 'HasObserver', 'InvokeEvent', 'IsA', 'IsTypeOf', 'Length', 'Modified', 'NewInstance', 'PrintRevisions', 'Register', 'Remove', 'RemoveAllObservers', 'RemoveObserver', 'RemoveObservers', 'SafeDownCast', 'Set', 'SetDebug', 'SetGlobalWarningDisplay', 'SetReferenceCount', 'SetRequest', 'UnRegister']
>
> Thanks for help.
>
> Regards Bastian
>
> Am 30.05.2010 16:58, schrieb Utkarsh Ayachit:
>>
>> The following example shows how to create an iterator to iterate over
>> all blocks in a composite dataset. The iterator
>> (http://www.vtk.org/doc/nightly/html/classvtkCompositeDataIterator.html)
>> has methods like HasCurrentMetaData(), GetCurrentMetaData() that you
>> can use to get the meta-data for the current block. Note that by
>> default the iterator skips over non-leaf nodes. If you want to access
>> those, use VisitOnlyLeavesOff() on the iterator.
>>
>> http://www.itk.org/Wiki/Python_Programmable_Filter#Dealing_with_Composite_Datasets
>>
>> Utkarsh
>>
>> On Sat, May 29, 2010 at 1:15 PM, BastiL2001 <bastil2001 at yahoo.de> wrote:
>>
>>> Thanks Andi,
>>>
>>> I don't know since the ensight reader does this for me. I want to work with
>>> the input he produces.
>>>
>>> Is it in any way possible to link GetMetaData to the current block? Afaik I
>>> can not query each blocks meta-Data, can I?
>>>
>>> Are you naming the block in the meta-data? In vtkCompositeDataSet there is
>>> a method called GetMetaData
>>> (http://www.vtk.org/doc/nightly/html/classvtkCompositeDataSet.html#abcf79d23fc3a67138da3336e4cda2afe)
>>> that may be what you're looking for.
>>>
>>> Andy
>>>
>>> On Fri, May 28, 2010 at 3:58 PM, BastiL2001 <bastil2001 at yahoo.de> wrote:
>>>
>>>> Thanks Andi,
>>>>
>>>> I will do this. What I am planning to do is to create a scalr field with
>>>> some distance information as an output.
>>>>
>>>> Another issue: I want to loop oder a multi-block dataset with an iterator
>>>> in a programmable filter (works) and find out the name of the currently
>>>> visited block. Is that possible? Thanks.
>>>>
>>>> Regards Bastian
>>>>
>>>> ________________________________
>>>> Von: pat marion <pat.marion at kitware.com>
>>>> An: Utkarsh Ayachit <utkarsh.ayachit at kitware.com>
>>>> CC: Andy Bauer <andy.bauer at kitware.com>; "Bastil2001 at yahoo.de"
>>>> <Bastil2001 at yahoo.de>; ParaView <paraview at paraview.org>
>>>> Gesendet: Freitag, den 28. Mai 2010, 16:59:07 Uhr
>>>> Betreff: Re: [Paraview] vtkCellLocator: Python
>>>>
>>>> Unfortunately some of the locator api is pass by reference and therefore
>>>> not wrapped by python. Bastian, let us know if you run into missing methods
>>>> when trying to use the cell locator in python.
>>>>
>>>> Pat
>>>>
>>>> On Fri, May 28, 2010 at 10:31 AM, Utkarsh Ayachit
>>>> <utkarsh.ayachit at kitware.com> wrote:
>>>>
>>>>> Andy,
>>>>>
>>>>> Bastian wants to use the cell locator in a python programmable --
>>>>> which won't involve any fetching.
>>>>>
>>>>> Bastian,
>>>>> You can create a cell locator in your programmable filter simply by:
>>>>>
>>>>> locator = vtk.vtkCellLocator()
>>>>>
>>>>>
>>>>> Utkarsh
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Fri, May 28, 2010 at 10:22 AM, Andy Bauer <andy.bauer at kitware.com>
>>>>> wrote:
>>>>>
>>>>>> My guess is that you'll want to use a filter to get access to the cell
>>>>>> locator. What's the desired output for this?
>>>>>>
>>>>>> You could also fetch the data set to the client and then use the vtk
>>>>>> wrapped
>>>>>> classes in paraview.vtk to use the cell locator if the class has been
>>>>>> wrapped but the fetch operation should be used with caution.
>>>>>>
>>>>>> Andy
>>>>>>
>>>>>> On Thu, May 27, 2010 at 5:55 PM, Bastil2001 at yahoo.de
>>>>>> <Bastil2001 at yahoo.de>
>>>>>> wrote:
>>>>>>
>>>>>>> Dear all,
>>>>>>>
>>>>>>> can I use vtkCellLocator from within Pyhon oder the Python
>>>>>>> programmable
>>>>>>> filter? If yes, how? Or do I need to write my own filter in c++?
>>>>>>> Thanks.
>>>>>>>
>>>>>>> Regards Bastian
>>>>>>> _______________________________________________
>>>>>>> Powered by www.kitware.com
>>>>>>>
>>>>>>> Visit other Kitware open-source projects at
>>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>>
>>>>>>> Please keep messages on-topic and check the ParaView Wiki at:
>>>>>>> http://paraview.org/Wiki/ParaView
>>>>>>>
>>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Powered by www.kitware.com
>>>>>>
>>>>>> Visit other Kitware open-source projects at
>>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>>
>>>>>> Please keep messages on-topic and check the ParaView Wiki at:
>>>>>> http://paraview.org/Wiki/ParaView
>>>>>>
>>>>>> Follow this link to subscribe/unsubscribe:
>>>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>>>
>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> Powered by www.kitware.com
>>>>>
>>>>> Visit other Kitware open-source projects at
>>>>> http://www.kitware.com/opensource/opensource.html
>>>>>
>>>>> Please keep messages on-topic and check the ParaView Wiki at:
>>>>> http://paraview.org/Wiki/ParaView
>>>>>
>>>>> Follow this link to subscribe/unsubscribe:
>>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>>
>>>>
>>>>
>>>
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the ParaView Wiki at:
>>> http://paraview.org/Wiki/ParaView
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://www.paraview.org/mailman/listinfo/paraview
>>>
>>>
>>>
>> _______________________________________________
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView
>>
>> Follow this link to subscribe/unsubscribe:
>> http://www.paraview.org/mailman/listinfo/paraview
>>
>>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView
>
> Follow this link to subscribe/unsubscribe:
> http://www.paraview.org/mailman/listinfo/paraview
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.paraview.org/pipermail/paraview/attachments/20100531/bdeb213d/attachment.htm>
More information about the ParaView
mailing list