[vtkusers] How to manage a large VRML file

[Hugo Valdebenito]

Thanks for your response!!,

I tried to load another file (smaller) and it's works.

Hugo.


2010/10/26 Sebastien Jourdain <sebastien.jourdain at kitware.com>

> Hi Hugo,
>
> I don't know much about C#, but just in case...
> It seems that you only pick the first actor. Are you sure that there
> is only one ?
> I guess, if you don't provide your renderer to the importer is because
> you have other actors into it ?
> Have you tried, at least to see if the file can be successfully loaded
> by VTK when the importer is fully set ?
>
> Seb
>
> On Tue, Oct 26, 2010 at 9:18 AM, Hugo Valdebenito <hugo at maptek.cl> wrote:
> > Hi all,
> >
> >
> > I need to load a large data set, for example a VRML file (500MB), I'm
> using
> > the following code (C#), may not be the best way, with my data set it's
> not
> > work, not show anything :
> >
> >             // VRML Import
> >            vtkVRMLImporter importer = vtkVRMLImporter.New();
> >
> >            OpenFileDialog dialog = new OpenFileDialog();
> >            dialog.Filter =
> >               "VRML files (*.wrl)|*.wrl|All files (*.*)|*.*";
> >            dialog.InitialDirectory = "\\Desktop";
> >
> >            dialog.Title = "Select a text file";
> >            dialog.Multiselect = false;
> >           if (dialog.ShowDialog() != DialogResult.OK)
> >           {
> >               return;
> >           }
> >
> >            importer.SetFileName(dialog.FileName);
> >            importer.Read();
> >            importer.Update();
> >
> >            //Convert to vtkDataSet
> >            vtkDataSet pDataset;
> >            vtkActorCollection actors =
> importer.GetRenderer().GetActors();
> >            actors.InitTraversal();
> >            pDataset = actors.GetNextActor().GetMapper().GetInput();
> >
> >            //Convert to vtkPolyData
> >            vtkPolyData polyData = vtkPolyData.SafeDownCast ( pDataset );
> >            polyData.Update();
> >
> >            // Mapper
> >            vtkPolyDataMapper solidMapper = vtkPolyDataMapper.New();
> >            solidMapper.SetInput ( polyData );
> >            solidMapper.ScalarVisibilityOff();
> >
> >            // Actor
> >            vtkActor solidActor = vtkActor.New();
> >            solidActor.SetMapper ( solidMapper );
> >
> >            //Add the actors to the scene
> >            _renderer.AddActor(solidActor);
> >            _renderer.SetBackground(1, 1, 1); // Background color dark
> blue
> >
> >
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