[vtkusers] Re: Question regarding vtkMultiBlockPLOT3DReader andalso VTKit

[Goodwin Lawlor]

Mark B Stucky wrote:
> 
> ----- Original Message ----- From: "Goodwin Lawlor" <goodwin.lawlor at ucd.ie>
> To: <vtkusers at public.kitware.com>
> Sent: Friday, November 03, 2006 10:12 AM
> Subject: [vtkusers] Re: Question regarding vtkMultiBlockPLOT3DReader 
> andalso VTKit
> 
> 
>> mstucky5 at cox.net wrote:
>>> Question 1 : Does anyone have any sample Tcl code for displaying
>>>              multi-block plot3d files?
>>
>> Here's a full translation of Graphics/Testing/Cxx/TestMultiBlock.cxx 
>> to tcl for VTK5.0:
>>
>> http://www.bioengineering-research.com/vtk/TestMultiBlock.tcl
>>

> Removing "Update" and running with your updated VTKit-5.0.1
> solves the problems.
> 
> Now if I can just figure out how to extract various grid planes
> and display the grid and/or contours etc.   ...
> 
> --Mark

If you look at the example linked above, there is

   vtkHierarchicalDataExtractDataSets eds
   eds SetInputConnection 0 [reader GetOutputPort 0]
   eds AddDataSet 0 1

There are 3 pieces in a single hierarchical level "0"... in the example 
the piece with index "1" is extracted and contoured.

Try

  eds AddDataSet 0 0
  eds AddDataSet 0 2

and have a look at the output.

hth

Goodwin