问题
I'm trying to visualize some data in vtr format. For this purposes I've created a couple npy files by this library, then I've converted this files by PyEVTK into the vtr format (like in the lowlevel.py example). But when I'm trying to visualize this data by ParaView, an error appears:
ERROR: In /var/tmp/portage/sci-visualization/paraview-4.0.1-r1/work/ParaView-v4.0.1-source/VTK/IO/XML/vtkXMLDataReader.cxx, line 510
vtkXMLRectilinearGridReader (0x36bb080): Cannot read point data array "Pressure" from PointData in piece 0. The data array in the element may be too short.
Can anybody explain, what exactly means this error message, and what's wrong with the my visualization data?
Solved:
I made a stupid mistake - data size in header was different from the actual data size, and this was the cause of error.
回答1:
This error may be coming from the XML header declaration, that may not contain all data needed. You may miss the header_type that contains the size of each info written between each set of data.
<VTKFile type="UnstructuredGrid" version="0.1" byte_order="BigEndian" header_type="UInt64">
来源：https://stackoverflow.com/questions/23293300/vtk-the-data-array-in-the-element-may-be-too-short