[Paraview-developers] Get coordinates of selectetd cells in data set

[Frank tt]

Hi.


I found an interesting filter 'Extract Selection'.
It creates an new data set only including the selection of the current
data set. In the Properties dock is a function 'Copy Active Selection'.


Now I'm trying to analyse the code to get an idea, what I should do for
my plugin. Are
source/ParaViewCore/ClientServerCore/Core/vtkPVExtractSelection.h and
its *.cxx the correct files I found an surface selection example in?
Where is the *.ui or server manger *.xml file? 


Greetings

Frank



On Fri, 2014-11-14 at 10:18 +0100, Frank tt wrote:
> Hi,
> 
> 
> I want to mark one or more cells at a surface data set. Now I'm
> interestet in its coordines to use them for further analytics in my
> plugin.
> 
> I'm trying to get something like:
> 
> int infoStream::RequestData( vtkInformation *vtkNotUsed(request),
>                              vtkInformationVector **inputVector,
>                              vtkInformationVector *outputVector )
> {
>     inputInfo = inputVector[0]->GetInformationObject(0);
>     outputInfo = outputVector->GetInformationObject(0);
> 
>     inputData = vtkImageData::SafeDownCast( inputInfo->Get(vtkDataObject::DATA_OBJECT()) );
> 
> 
>     // TODO:
>     vtkIdList cellPtIds = inputInfo->GetCellSelection();
>     vtkCell3D cell = cellPtIds->getMiddle();
>     std::vector coords <int> = cell->getCoords();
> 
> 
>     return 1;
> }
> 
> I know about the 'Selection Inspector' (PV 3.3.0). In my version (4.1.0), it
> does not exist. I've found a 'Selection Display Inspector' with some
> different functions.
> 
> I don't know how to get the selection from the user to the plugin and work with it.
> 
> I'm using locally:
> ParaView 4.1.0
> Qt 4.8.6
> 
> server side:
> ParaView 4.1.0
> OSMesa 7.11.2
> OpenMPI 1.8.1
> 
> 
> 
> Greetings,
> Frank
> 
> 
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