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A new Flyspray task has been opened.  Details are below.

User who did this: - Sreejith Pulloor Kuttanikkad (sreejith)

Attached to Project - Dune
Summary - vtkwriter need enhancement to write vector data correctly
Task Type - Bug Report
Category - File
Status - New
Assigned To - 
Operating System - All
Severity - Low
Priority - Normal
Reported Version - SVN
Due in Version - 
Due Date - Undecided
Details - Though I am not sure about the bug here is what I found: 

I think vtkfile format for a vector data should have 3 components even
if it is a 2D data (in 2D case with 3rd component=0) otherwise
ParaView produce an error as shown below. the sample vtkout.vtu file
is attached. 
"
# Error or warning: There was a VTK Warning in file:
/home/amy/ParaViewReleaseRoot/paraview-2.4.2/VTK/Filtering/vtkDataSetAttributes.cxx
(937)
 vtkPointData (0x805ffe0): Can not set attribute Vectors. Incorrect
number of components.
"

i think DataArray elements for the vectors should be like the below
with NumberOfComponents=”3” always..????

<DataArray type=”Float32” Name=”vectors”
NumberOfComponents=”3” format=”appended” offset=”0”/> 

so this means even for 2D data the vtkwriter should be able to write
the numberofcomponets="3" and third component of the value should be
written =0 in some intelligent way..!! 


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