[vtkusers] Get PolyDataObject from a MultiBlockDataSet

[Matthew Cragun]

I have a MultiBlockDataSet with only one block(CompositeDataSet) that has
two children(PolyDataObjects).  I'm using Python.

vtmReader = vtkXMLMultiBlockDataReader()
vtmReader.SetFileName("C:/Paraview/test.vtm")
vtmReader.Update()
vtm = vtmReader.GetOutput()


Where vtm is my MultiBlockDataSet.

I have two questions:
1.  How do I access the children?
    I was think of doing something like this (although I know this
implementation is wrong):

vtmBlock0 = vtm.GetBlock(0)   #This would return the CompositeDataSet (Even
though I don't think it works this way)
vtmChild0 = vtmBlock0.GetChild(0)  # This would return the first
polyDataObject
vtmChild1 = vtmBlock1.GetChild(1)  #This would return the second
polyDataObject

2. Can I create one large PolyDataObject from all children with some sort of
merge? I know if I separate them they can be appended, but I'm wondering if
theres a faster way to do it.


Thanks in advance.
-- 
Matt Cragun

Engineer
TotalSim LLC
7003 Post Road,
Suite 415
Dublin, Ohio 43016
O: (614) 255-7426
M: (801) 404-6021
E: mcragun at totalsim.us



-- 
Matt Cragun

Engineer
TotalSim LLC
7003 Post Road,
Suite 415
Dublin, Ohio 43016
O: (614) 255-7426
M: (801) 404-6021
E: mcragun at totalsim.us
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