[Paraview] Help needed debugging VTP file

[Moreland, Kenneth]

Each cell in the connectivity array needs to be of the form "N id0 id1
id2..." where N is the number of points in the cell and idX are the indices
to the points.  It looks like your connectivity array is missing the count.

I believe the offsets array should be the index of the start of each cell.
Generally, the first one is always 0.

-Ken


On 10/7/08 5:22 PM, "Olumide" <50295 at web.de> wrote:

> Here's another small vtp file that Paraview won't open. I'm getting the
> error: "Cannot read cell connectivity from Polys in piece 0 because the
> "connectivity" array is not long enough."
>
> Can someone please tell me what I'm missing.
>
> Thanks
>
> %%%%%%%%%%%%%%%%% Small File %%%%%%%%%%%%%%%%%
>
> <?xml version="1.0" encoding="utf-8"?>
> <VTKFile type="PolyData" version="0.1" byte_order="LittleEndian">
>         <PolyData>
>                 <Piece NumberOfPoints="9" NumberOfLines="1" NumberOfPolys="1">
>
>                         <Points>
>                                 <DataArray type="Float32"
> NumberOfComponents="3" format="ascii">
>                                          0.395507 0.427410 0.812954
>                                          0.457372 0.349573 0.817686
>                                          0.541530 0.349630 0.764529
>                                          0.563762 0.427524 0.706680
>                                          0.501819 0.505304 0.702030
>                                          0.417690 0.505133 0.755232
>
>                                          0.417690 0.505133 0.755232
>                                          0.395507 0.427410 0.812954
>                                          0.482041 0.429542 0.763630
>                                 </DataArray>
>                         </Points>
>
>                         <Lines>
>                                 <DataArray type="Int32" Name="connectivity"
> format="ascii">
>                                          0 1 2 3 4 5
>                                 </DataArray>
>                                 <DataArray type="Int32" Name="offsets"
> format="ascii">
>                                         6
>                                 </DataArray>
>                         </Lines>
>
>                         <Polys>
>                                 <DataArray type="Int32" Name="connectivity"
> format="ascii">
>                                         6 7 8
>                                 </DataArray>
>                                 <DataArray type="Int32" Name="offsets"
> format="ascii">
>                                          10
>                                 </DataArray>
>                         </Polys>
>
>                 </Piece>
>         </PolyData>
> </VTKFile>
>
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   ****      Kenneth Moreland
    ***      Sandia National Laboratories
***********
*** *** ***  email: kmorel at sandia.gov
**  ***  **  phone: (505) 844-8919
    ***      fax:   (505) 845-0833