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VTK Users:<br>
<br>
I am having some problems reading a vtk formatted data file. The file
consists of unstructured data, scalars, and field data. I would like to
get a vtkFieldData object from the file. I had to change
"FIELD" (which agrees with <i>File Formats for VTK Version 4.2,
</i>which I found through a previous posting on the mailing list) to
"fielddata" in order for
vtkDataReader::GetFieldDataNameInFile() to return the field data name. It
is unclear to me how I can use the vtkDataReader class to get the field
data in the file into a vtkFieldData object. If I set the field data name
and use vtkDataReader::ReadFieldData() the application produces a seg.
fault. How is ReadFieldData used? Is it the data reader owners
responsibility to advance the vtkDataReader istream to the point in the
file where "FIELD/fielddata" is the next string to be read? I
have successfully used the SCALARS in the file, and I did not do anything
except use vtkDataReader::SetScalarsName. Is their a similar way to
specify a field in field data to use for point or cell data?<br>
<br>
Ultimately I would like to use one of the fields in the field data to use
for color mapping of the unstructured grid.I would really appreciate it
if someone would take the time to explain how someone would do
this.<br>
<br>
Thank you for your time, <br>
Mike Bonner</html>