[Dune] [#1059] VTKWriter: creates invalid .vtu files in ascii mode if function value is NaN (Attachment added)

[Dune]

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User who did this - Ansgar Burchardt (ansgar) 

Attached to Project - Dune
Summary - VTKWriter: creates invalid .vtu files in ascii mode if function value is NaN
Task Type - Bug Report
Category - Grid
Status - New
Assigned To - 
Operating System - Unspecified / All
Severity - Very Low
Priority - Low
Reported Version - SVN (pre2.2)
Due in Version - Undecided
Due Date - Undecided
Details - ParaView cannot load .vtu files written by VTKWriter that contain NaN values and are written in the ascii format with

  vtkwriter.pwrite("bug_vtkwriter-broken", "", "", Dune::VTK::ascii);

and gives this error message:

  ERROR: In /build/buildd/paraview-3.10.1/VTK/IO/vtkXMLDataReader.cxx, line 510
  vtkXMLUnstructuredGridReader (0xc48f080): Cannot read point data array "f" from PointData in piece 0.  The data array in the element may be too short.

When using the binary format with

  vtkwriter.pwrite("bug_vtkwriter-okay", "", "", Dune::VTK::appendedraw);

ParaView has no problem loading the file.

I have attached a simple program that writes a VTK file with both options for the constant NaN function, but the problem also occurs if only some values are NaN.

Ansgar


One or more files have been attached.

More information can be found at the following URL:
http://www.dune-project.org/flyspray/index.php?do=details&task_id=1059

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