It looks like you have integer overflow ( https://en.wikipedia.org/wiki/Integer_overflow). I'd suggest using a datatype with more precision and see if that fixes the issue.
On Tue, Jan 30, 2018 at 3:15 PM, Tate Fanning <t8fann...@gmail.com> wrote: > I've output a vtu file from a CFD code. When trying to load the dataset > into Paraview I get the following errors: > > [CODE]Error reading uncompressed binary data header. Read 0 of 4 bytes. > ERROR: In > C:\bbd\7cc78367\source-paraview\VTK\IO\XMLParser\vtkXMLDataParser.cxx, > line 609 vtkXMLDataParser (0000009CC7674520): Error reading uncompressed > binary data header. Read 0 of 4 bytes. > > Cannot read point data array "Cyl_Velocity" from PointData in piece 0. The > data array in the element may be too short. ERROR: In > C:\bbd\7cc78367\source-paraview\VTK\IO\XML\vtkXMLDataReader.cxx, line 443 > vtkXMLUnstructuredGridReader (0000009C837CFCE0): Cannot read point data > array "Cyl_Velocity" from PointData in piece 0. The data array in the > element may be too short.[/CODE] > > If I ask Paraview to not read the offending arrays, it reads the other > arrays in fine. From these errors, it seems the data file has some issues > with a few specific arrays. > > Upon inspection of the first part of the vtu file, the offending arrays > (Cyl_Velocity and Rel_Velocity) have negative offsets. > > [CODE]<VTKFile type="UnstructuredGrid" version="0.1" > byte_order="BigEndian"> > <UnstructuredGrid> > <Piece NumberOfPoints=" 9855039" NumberOfCells=" 9523296"> > <Points> > <DataArray type="Float64" Name="coordinates" > NumberOfComponents="3" format="appended" offset=" 0" /> > </Points> > <Cells> > <DataArray type="Int32" Name="connectivity" format="appended" > offset=" 236520940" /> > <DataArray type="Int32" Name="offsets" format="appended" offset=" > 541266416" /> > <DataArray type="Int32" Name="types" format="appended" offset=" > 579359604" /> > </Cells> > <PointData> > <DataArray type="Float64" Name="rho" format="appended" offset=" > 617452792" /> > <DataArray type="Float64" Name="P" format="appended" offset=" > 696293108" /> > <DataArray type="Float64" Name="Phi" format="appended" offset=" > 775133424" /> > <DataArray type="Float64" Name="TKE" format="appended" offset=" > 853973740" /> > <DataArray type="Float64" Name="EPS" format="appended" offset=" > 932814056" /> > <DataArray type="Float64" Name="mut/mul" format="appended" > offset=" 1011654372" /> > <DataArray type="Float64" Name="WDist" format="appended" > offset=" 1090494688" /> > <DataArray type="Float64" Name="TimeStep" format="appended" > offset=" 1169335004" /> > <DataArray type="Float64" Name="T" format="appended" offset=" > 1248175320" /> > <DataArray type="Float64" Name="Processor" format="appended" > offset=" 1327015636" /> > <DataArray type="Float64" Name="Soundspeed" format="appended" > offset=" 1405855952" /> > <DataArray type="Float64" Name="Lam.Visc" format="appended" > offset=" 1484696268" /> > <DataArray type="Float64" Name="Yplusw" format="appended" > offset=" 1563536584" /> > <DataArray type="Float64" Name="Qdotw" format="appended" > offset=" 1642376900" /> > <DataArray type="Float64" Name="vort-x" format="appended" > offset=" 1721217216" /> > <DataArray type="Float64" Name="vort-y" format="appended" > offset=" 1800057532" /> > <DataArray type="Float64" Name="vort-z" format="appended" > offset=" 1878897848" /> > <DataArray type="Float64" Name="helicity" format="appended" > offset=" 1957738164" /> > <DataArray type="Float64" Name="Velocity" NumberOfComponents="3" > format="appended" offset=" 2036578480 <(203)%20657-8480>" /> > <DataArray type="Float64" Name="Cyl_Velocity" > NumberOfComponents="3" format="appended" offset=" -2021867876" /> > <DataArray type="Float64" Name="Rel_Velocity" > NumberOfComponents="3" format="appended" offset=" -1785346936" /> > </PointData> > <CellData> </CellData>[/CODE] > > The CFD code also can output data files for a specific surface. When I > load one of those into Paraview, it has no issues with any data array in > that file, and everything works fine. > > Upon inspection of the first part of a single surface vtu file with no > issues, no array has a negative offset. > > [CODE] <VTKFile type="UnstructuredGrid" version="0.1" > byte_order="BigEndian"> > <UnstructuredGrid> > <Piece NumberOfPoints=" 176025" NumberOfCells=" 174528"> > <Points> > <DataArray type="Float64" Name="coordinates" > NumberOfComponents="3" format="appended" offset=" 0" /> > </Points> > <Cells> > <DataArray type="Int32" Name="connectivity" format="appended" > offset=" 4224604" /> > <DataArray type="Int32" Name="offsets" format="appended" offset=" > 7017056" /> > <DataArray type="Int32" Name="types" format="appended" offset=" > 7715172" /> > </Cells> > <PointData> > <DataArray type="Float64" Name="rho" format="appended" offset=" > 8413288" /> > <DataArray type="Float64" Name="P" format="appended" offset=" > 9821492" /> > <DataArray type="Float64" Name="Phi" format="appended" offset=" > 11229696" /> > <DataArray type="Float64" Name="TKE" format="appended" offset=" > 12637900" /> > <DataArray type="Float64" Name="EPS" format="appended" offset=" > 14046104" /> > <DataArray type="Float64" Name="mut/mul" format="appended" > offset=" 15454308" /> > <DataArray type="Float64" Name="WDist" format="appended" > offset=" 16862512" /> > <DataArray type="Float64" Name="TimeStep" format="appended" > offset=" 18270716" /> > <DataArray type="Float64" Name="T" format="appended" offset=" > 19678920" /> > <DataArray type="Float64" Name="Processor" format="appended" > offset=" 21087124" /> > <DataArray type="Float64" Name="Soundspeed" format="appended" > offset=" 22495328" /> > <DataArray type="Float64" Name="Lam.Visc" format="appended" > offset=" 23903532" /> > <DataArray type="Float64" Name="Yplusw" format="appended" > offset=" 25311736" /> > <DataArray type="Float64" Name="Qdotw" format="appended" > offset=" 26719940" /> > <DataArray type="Float64" Name="vort-x" format="appended" > offset=" 28128144" /> > <DataArray type="Float64" Name="vort-y" format="appended" > offset=" 29536348" /> > <DataArray type="Float64" Name="vort-z" format="appended" > offset=" 30944552" /> > <DataArray type="Float64" Name="helicity" format="appended" > offset=" 32352756" /> > <DataArray type="Float64" Name="Velocity" NumberOfComponents="3" > format="appended" offset=" 33760960" /> > <DataArray type="Float64" Name="Cyl_Velocity" > NumberOfComponents="3" format="appended" offset=" 37985564" /> > <DataArray type="Float64" Name="Rel_Velocity" > NumberOfComponents="3" format="appended" offset=" 42210168" /> > </PointData> > <CellData> </CellData>[/CODE] > > So I think the offset sign is relevant to my problem, but I don't really > know what it means or how to fix it. Does anyone know what I can do to fix > my data set, or at least know what the underlying problem is? > > Thank you. > > -- > *Tate Fanning* > Ph.D. Candidate > Turbomachinery Research Lab > BYU Mechanical Engineering > 360-953-7457 <(360)%20953-7457> > t8fann...@gmail.com > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at http://www.kitware.com/ > opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > https://paraview.org/mailman/listinfo/paraview > >
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