vtu file wrong number of components?

ParaView Support
1

Dear all,

I saved a tensor of 9 components (tensor=gradient(gradient(U_mean)) as a .vtm file. However, when I open the .vtu file (saved in the ascii format which is needed because I plan to modify several components) I notice that there are only 6 columns, despite the NumberOfComponents is 9:

<VTKFile type="UnstructuredGrid" version="1.0" byte_order="LittleEndian" header_type="UInt64">
  <UnstructuredGrid>
    <Piece NumberOfPoints="596" NumberOfCells="888">
      <PointData>
        <DataArray type="Float64" Name="d2u:metric" NumberOfComponents="9" format="ascii" RangeMin="1.0189702313516165" RangeMax="2406.078773804854">
          0.011074915683517853 3.4870093276789498 -0.0010333100023368995 3.520116960461199 2406.063630272549 -4.073914206947664
          -0.0013522302421430747 -4.316136145040371 0.013886760144184032 -0.000023191794753074483 -0.004883451055908632 0.000021183863282203647
          -0.008957242332288923 -2.710591815298783 0.010902919668410213 0.000026982277631759644 0.008770794340700808 -0.000052094459533691406
....

How can I fix this?

Thank you very much for your help!

2

please share your data.

3

Please find attached the result file used to load the data with Paraview, the state, and the .vtu file obtained.
data_0_0.vtu (170.3 KB)
postprocessing.zip (81.4 KB)
data.pvsm (1008.4 KB)

4

The number of columns does not matter at all, component are just read in order.

5

The issue is that I use the .vtu generated with a mesh tool (mmg3d) that is expecting as many columns as the number of components. To solve it, I defined a macro with emacs to rearrange the data in the .vtu file. Thank you for your answer.

6

Thats a bug in mmg3d. But if you only export, I dont see why it is an issue.

7

Sorry I made a mistake:

The issue is that I use the .vtu generated by Paraview with a mesh tool (mmg3d) that is expecting as many columns as the number of components.