Method SaveCurrentMesh

src/gui/frame.cpp:2735–2805

// ---------------------------------------------------------------------

void MyFrame::SaveCurrentMesh(const wxFileName& mesh_filename, bool should_decimate, double targetReduction)
{
    vtkSmartPointer<vtkPolyData> mesh = vtkSmartPointer<vtkPolyData>::New();
    this->system->GetAsMesh(mesh,this->render_settings);

    if (should_decimate)
    {
        vtkSmartPointer<vtkQuadricDecimation> dec = vtkSmartPointer<vtkQuadricDecimation>::New();
        dec->SetInputData(mesh);
        dec->SetTargetReduction(targetReduction);
        dec->Update();
        mesh->DeepCopy(dec->GetOutput());
    }

    vtkSmartPointer<vtkPolyDataNormals> normals = vtkSmartPointer<vtkPolyDataNormals>::New();
    normals->SetInputData(mesh);
    normals->SplittingOff();
    normals->Update();
    vtkPolyData* pd = normals->GetOutput();

    if(mesh_filename.GetExt().Lower() == _T("obj"))
    {
        wxBusyCursor busy;
        wxFileOutputStream to_file(mesh_filename.GetFullPath());
        wxTextOutputStream out(to_file);
        out << "# Output from Ready - https://github.com/GollyGang/ready\n";
        pd->BuildCells();
        for(vtkIdType iPt=0;iPt<pd->GetNumberOfPoints();iPt++)
            out << "v " << pd->GetPoint(iPt)[0] << " " << pd->GetPoint(iPt)[1] << " " << pd->GetPoint(iPt)[2] << "\n";
        if(pd->GetPointData()->GetNormals())
        {
            for(vtkIdType iPt=0;iPt<pd->GetNumberOfPoints();iPt++)
                out << "vn " << pd->GetPointData()->GetNormals()->GetTuple3(iPt)[0] << " "
                    << pd->GetPointData()->GetNormals()->GetTuple3(iPt)[1] << " "
                    << pd->GetPointData()->GetNormals()->GetTuple3(iPt)[2] << "\n";
        }
        for(vtkIdType iCell=0;iCell<pd->GetPolys()->GetNumberOfCells();iCell++)
        {
            vtkSmartPointer<vtkIdList> ids = vtkSmartPointer<vtkIdList>::New();
            pd->GetCellPoints(iCell, ids);
            out << "f";
            if(pd->GetPointData()->GetNormals())
            {
                for(vtkIdType iPt = 0; iPt < ids->GetNumberOfIds(); iPt++)
                    out << " " << wxInt32(ids->GetId(iPt) + 1) << "//" << wxInt32(ids->GetId(iPt) + 1); // (OBJ indices are 1-based)
            }
            else
            {
                for(vtkIdType iPt = 0; iPt < ids->GetNumberOfIds(); iPt++)
                    out << " " << wxInt32(ids->GetId(iPt) + 1); // (OBJ indices are 1-based)
            }
            out << "\n";
        }
    }
    else if(mesh_filename.GetExt().Lower() == _T("vtp"))
    {
        wxBusyCursor busy;
        vtkSmartPointer<vtkXMLPolyDataWriter> writer = vtkSmartPointer<vtkXMLPolyDataWriter>::New();