[Paraview] Python view

[Cory Quammen]

Ian,

You should be able to access the point data in your "render" function with
the following

dataObject = view.GetVisibleDataObjectForRendering(i)

dataObject.GetPoints()

where i is the i-th visible object. This returns a vtkPoints object. I'm
not 100% sure if this works in client/server mode, though.

Cory

On Tue, Apr 14, 2015 at 4:11 PM, Ian Krukow <i.krukow at tu-braunschweig.de>
wrote:

> One more question: How can I access the point coordinates in the python
> view?
>
> Ian
>
>
>
> Am 14.04.2015 um 22:01 schrieb Ian Krukow:
>
>> Hi Cory,
>>
>> thanks a lot! I was missing the import statements. Now it works fine.
>> And I will remember the big Apply button :-).
>>
>> Ian
>>
>>
>>
>> Am 14.04.2015 um 15:09 schrieb Cory Quammen:
>>
>>> Hi Ian,
>>>
>>> I'm glad to hear you are interested in the Python View.
>>>
>>>     I want to try out the python view for the first time, but I am not
>>>     getting anywhere. I have created a python view and defined the
>>>     functions setup_data and render. I tried the example script from the
>>>     Kitware Blog (http://www.kitware.com/blog/__home/post/588
>>>     <http://www.kitware.com/blog/home/post/588>), and I do get the
>>>     memory size in the output messages, but the python view stays all
>>>     black (no plot, no axes, nothing). Am I just missing something?
>>>     I am using ParaView 4.3.1 64-bit Windows binaries.
>>>
>>>
>>> Did you copy and paste the script examples into the "Script" window, or
>>> did you load the example state file on the blog? I suggest loading the
>>> state file because the script examples in the blog post are missing some
>>> imports that are needed. The state file has the complete script - I just
>>> confirmed that it works on the 4.3.1 64-bit Windows binaries. You will
>>> have to point ParaView to the bluntfin.vts file when you load the state
>>> file, which you can download from
>>>
>>>
>>> http://www.paraview.org/gitweb?p=ParaViewData.git;a=blob_plain;f=Data/bluntfin.vts;hb=1fa9dce1c623e2d467c44b5337ba3a8378a6a537
>>>
>>>
>>>
>>>     Besides, I find it a little confusing, that I do not really know,
>>>     when the script is executed. What about something like an 'Apply'
>>>     button?
>>>
>>>
>>> The Script is an auto-update property of the Python View. As such, it is
>>> executed any time the view needs to re-render. This includes any time
>>> you edit the script and then click elsewhere in the GUI, resize the
>>> ParaView window, etc. It should work to click on the Python View after
>>> you have edited the script - think of it as a big Apply button :-)
>>>
>>> Thanks,
>>> Cory
>>>
>>>
>>>     Kind regards
>>>     Ian
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>>>
>>> --
>>> Cory Quammen
>>> R&D Engineer
>>> Kitware, Inc.
>>>
>>


-- 
Cory Quammen
R&D Engineer
Kitware, Inc.
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