[Libmesh-users] how to use libmesh to read vtk format file?

[张江 <zha...@gm...>]

Hi,

I am trying to load vtk files using libmesh. But there is always error that 

ERROR: In /Users/xxx/VTK-7.0.0/IO/XMLParser/vtkXMLParser.cxx, line 397
vtkXMLDataParser (0x7f9341c16140): Error parsing XML in stream at line 1, column 1, byte index 1: not well-formed (invalid token)

ERROR: In /Users/xxx/VTK-7.0.0/IO/XML/vtkXMLReader.cxx, line 456
vtkXMLUnstructuredGridReader (0x7f9341f00000): Error parsing input file.  ReadXMLInformation aborting.

ERROR: In /Users/xxx/VTK-7.0.0/Common/ExecutionModel/vtkExecutive.cxx, line 784
vtkCompositeDataPipeline (0x7f9341c14a70): Algorithm vtkXMLUnstructuredGridReader(0x7f9341f00000) returned failure for request: vtkInformation (0x7f9341e0a2e0) 

What’s the problem? Can anyone give an example showing how to read vtk file? Thanks.