[Paraview] About 2D Glyph orientation

[luc scholtes]

Hi all,

I am new to Paraview and I could not find any clear information on how 2D
glyphs are oriented. Is there a way to control their normals to the the 2D
plane?

Here is the code I use to generate a cloud of points from a text file to
which I would like to assign different filters (it can be 3D or 2D, but
circles oriented by their normals would be perfect...)

/// here is the part to recover the data
std::ifstream file ("cracks.txt",std::ios::in);
        if(file){
             while ( !file.eof() ){
                std::string line;
                Real p0,p1,p2,s,o0,o1,o2;
                while ( std::getline(file, line) ){
                    file >> p0 >> p1 >> p2 >> s >> o0 >> o1 >> o2;
                    vtkIdType pid[1];
                    pid[0] = crackPos->InsertNextPoint(p0, p1, p2);
                    crackCells->InsertNextCell(1,pid);
                    crackSize->InsertNextValue(s);
                    float n[3] = { o0,o1,o2 };
                    crackOri->InsertNextTupleValue(n);
                }
             }
             file.close();
}

/// here is the code to create the VTK file
vtkSmartPointer<vtkUnstructuredGrid> crackUg =
vtkSmartPointer<vtkUnstructuredGrid>::New();
crackUg->SetPoints(crackPos);
crackUg->SetCells(VTK_VERTEX, crackCells);
crackUg->GetPointData()->AddArray(crackSize);
crackUg->GetPointData()->AddArray(crackOri);

vtkSmartPointer<vtkXMLUnstructuredGridWriter> writer =
vtkSmartPointer<vtkXMLUnstructuredGridWriter>::New();
string
fn=fileName+"cracks."+lexical_cast<string>scene->currentIteration)+".vtu";
writer->SetFileName(fn.c_str());
writer->SetInput(crackUg);
writer->Write();

Do you have any advice?

Tahnks a lot in advance

  Luc
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