[Paraview] Filter to keep points, dropping topology

[B.W.H. van Beest]

The compiler tells me:
error: ‘class vtkDataSet’ has no member named ‘SetPoints’

Likewise, SetCells() is also not a member function of vtkDataSet.

Indeed, according to the doc, there is no such function.


Any idea?







On 10/22/2014 04:52 PM, Biddiscombe, John A. wrote:
> Output->SetPoints(input->GetPoints());
>
> Or
>
> Output->CopyStructure(input);
> Output->SetCells(NULL)
>
> Then copy point field data etc
>
>
> On 22/10/14 16:19, "B.W.H. van Beest" <bwvb at xs4all.nl> wrote:
>
>> Hello,
>>
>> I need a filter that only keeps the 3D points of a certain source (e.g.
>> coming from  an stl file).
>> The topology of the data set may go.
>>
>> I thought that the following filter, only passing through the pointdata,
>> would do the job,
>> but that appears not to be the case (no points after the filter!)
>> What's going wrong and how should I change the filter?
>>
>> Kind Regards,
>> Bertwim
>>
>> ================
>>
>> int FilterPoints::RequestData( vtkInformation*,
>>                                             vtkInformationVector**
>> inputVector,
>>                                             vtkInformationVector*
>> outputVector)
>> {
>>   // Get the input and output data objects.
>>   vtkDataSet* input = vtkDataSet::GetData( inputVector[0] );
>>   vtkDataSet* output = vtkDataSet::GetData( outputVector );
>>
>>   // output->CopyStructure( input );
>>   output->GetPointData()->PassData( input->GetPointData() );
>>  
>>   return 1;
>> }
>>
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