VTK legacy format (and VTK xml format) do not support field arrays
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
The specification for VTK legacy and VTK xml formats do not seem to include a way to specify field arrays (arrays not associated with points or cells).
VTK legacy format does include a way to specify a general Dataset where there are no point or cell data but only field data - this is done by setting the dataset type to FIELD.