[Paraview] How to get the name of a block in a programmable filter

[LB]

Hi,

I would like to define a custom programmable filter to work with
MultiBlockDatasets. In that filter, I need to access to the name of each
block being processed. By "name", I mean the information given in the
"Information>Data Hierarchy" tree.

Could you explain me how to access to that information in a programmable
filter?

Fort information, here is a code example of what I would like to do:

[code]
from    paraview.vtk import dataset_adapter as DA

input   = self.GetInputDataObject(0, 0)
output = self.GetOutputDataObject(0)

def process_block(input_block, output_block) :

    data = input_block.PointData['data']
    if data is None :
        print 'data is None'

    else :
        # <<<< get the name of input_block >>>>
        print 'do something with data'


iter = DA.MultiCompositeDataIterator([input, output])
for input_block, output_block in iter:
    process_block(input_block, output_block)

[/code]


B. L.
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