[strakakl]

HI all,

on the snappyWiki (https://sites.google.com/site/snappywiki/snappyhexmesh/snappyhexmeshdict#TOC-Explicit-feature-edge-refinement) i found that it is possible to extract feature edges in paraview.

"Users can generate feature edge meshes in Paraview by using the Feature Edges filter. Data can be saved in VTK (ASCII) format and then be used by snappyHexMesh."

I tried this with my geometry and saved the edges to a file "edges.vtk", this is a quite straight forward procedure. But how do i use this vtk file in snappyHexMesh? I tried

features
    (
                
        {
            file "edges.vtk";
            level 3;
        }
       
    );

but this gives me an error

--> FOAM FATAL IO ERROR: 
problem while reading header for object edges.vtk

file: /home/ak113859/OpenFOAM/ak113859-2.2.0/run/snappy/splitableBarrel/meteringzone/constant/triSurface/edges.vtk at line 1.

    From function regIOobject::readStream()
    in file db/regIOobject/regIOobjectRead.C at line 95.

FOAM exiting

Does anyone has an idea how to use the vtk file?

Cheers,

Klaus

[strakakl]

Hi there,

to answer my own post, seems to be a bug in 2.2.0, http://www.openfoam.org/mantisbt/view.php?id=796

best,
Klaus

[mrishi]

Hi,
Not sure if it is alright to ping on this old a thread, but I encounter a related issue with OF6. When generating VTK of Feature Edges in Paraview, sHM throws the error of unidentified tag METADATA. If I manually delete this tag (and a few other lines) sHM runs.



Any ideas on why this is happening and how to avoid this?


Thanks,
rishi