[Paraview] Accessing VTK data from a Paraview plugin

[Miron Sadziak]

Such a solution would be great but I don't understand what you mean by 
"outInfo". Do you mean the "datainfo" of type vtkPVDataInformation* from 
my example ? If so then I cant find there a method "Get" or any other 
with such a functionality. 

Mike Jackson さんは書きました:
> Just a guess:
>
> vtkImageData* datainfo = 
> vtkImageData::SafeDownCast(outInfo->Get(vtkDataObject::DATA_OBJECT()));
>
> Mike
>
> On Feb 19, 2008, at 2:35 AM, Miron Sadziak wrote:
>
>> Thank you for you help. I checked the filter plugin description and 
>> the examples but I think thats not what I want. At least I cant 
>> figure out how I can use it to read the raw data through the client. 
>> The code I posted in the previous mail is already a part of a plugin 
>> which shows a toolbar with buttons in Paraview client. Clicking on a 
>> button should pop up a window with the point coordinates of all 
>> points of the selected source. Thats the aim but now it only shows 
>> the number of points and the vtk class name "vtkImageData". Since 
>> these informations are already on the client there must be a simple 
>> way to get also all the point coordinates/point data of that 
>> vtkImageData class. How to do it ?
>>
>>
>> Mike Jackson さんは書きました:
>>> You probably want to write a Filter plugin for ParaView. Look on the 
>>> Wiki for more information.
>>>
>>> Mike
>>>
>>> On Feb 18, 2008, at 8:16 PM, Miron Sadziak wrote:
>>>
>>>> Hi
>>>>
>>>> I want to write a plugin for Paraview to manipulate the data Paraview
>>>> has opened.
>>>> It will be mostly ImageData or PolyData but I would like to understand
>>>> the general idea how to do it.
>>>> Im using C++ so the code i have figured out by now looks like that:
>>>>
>>>> #Getting the active source
>>>> pqApplicationCore* core = pqApplicationCore::instance();
>>>> pqServerManagerSelection sels = 
>>>> *core->getSelectionModel()->selectedItems();
>>>> pqPipelineSource* source = 0;
>>>> pqServerManagerModelItem* item = 0;
>>>> pqServerManagerSelection::ConstIterator iter = sels.begin();
>>>> item = *iter;
>>>> source = dynamic_cast<pqPipelineSource*>(item);
>>>>
>>>> #Trying to access the data of the source.
>>>> #Here I can access data information only, not raw-data
>>>> vtkPVDataInformation*
>>>> datainfo=source->getOutputPort(0)->getDataInformation(true);
>>>> cout << "PointsNumber " << datainfo->GetNumberOfPoints() << "\n";
>>>> cout << "DataClassName " << datainfo->GetDataClassName() << "\n";
>>>>
>>>> It all works but its just data information.
>>>> I would like to access a function like GetData or GetDataArray to be
>>>> able to read the data contained in the VTK object. To read/write
>>>> directly from/to the data array. The problem is that I cant find a
>>>> suitable function in any of the classes like pqPipelineSource,
>>>> vtkPVDataInformation etc.
>>>> What should I do ?
>>>>
>>>> I would be thankful for any help,
>>>> Paraview user
>>>>
>>>>
>>>
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