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With multiple output objects, you get a list of output items, and than
you apply filters based on which output item you have selected. I think
the default is the first output.<br>
<br>
Multiple output items have to have a defined number of outputs at
compile time, so if you have a dynamic number of objects in the file,
you will have to look at multiblock. The only warning I have about
multiblock is that currently you cannot use a multiblock item for both
input and source for a filter (unless this is a bug).<br>
<br>
Olesen, Mark wrote:
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cite="mid:E05ABC9A7FBFB942B70D7533AF5BE68D02A3DD5B@augexmsg001.euro.corp.dir"
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<pre wrap="">mesh they live on. So the reader cannot derive from,
e.g., vtkUnstructuredGridAlgorithm (like the example at
<a class="moz-txt-link-freetext" href="http://www.paraview.org/Wiki/ParaView:Extend">http://www.paraview.org/Wiki/ParaView:Extend</a>), as the
data is not all on an unstructured grid.
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There are a few readers in VTK/IO that are derived from a
vtkMultiBlockDataSetAlgorithm that might be useful for reference:
vtkFLUENTReader.h
vtkGenericEnSightReader.h
vtkMultiBlockPLOT3DReader.h
vtkOpenFOAMReader.h
The multi-block-dataset can hold various data types.
If you wish to have multiple output ports (say a different port for each
data type), the only example I saw in VTK/IO is this one:
vtkGaussianCubeReader
I unfortunately don't know how multi-port output gets connected with the
rest of the pipeline.
/mark
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