[vtkusers] vtk3ddelaunay save in .ply, .stl, .obj or .wrl

[Chiranjib Sur]

Hi,
You can use vtkPLYWriter / vtkSTLWriter to convert you file in the desired
format.
Here is a page with examples:
http://www.vtk.org/Wiki/VTK/Examples/Cxx/IO/WritePLY

Thanks,
Chiranjib

On Wed, May 3, 2017 at 1:30 AM, mozendi <mozendi at gmail.com> wrote:

> Dear VTK users,
>
> I am using VTK to generate a 3D Delaunay triangulation from a list of input
> points that are obtained using terrestrial laser scanner. So far, I
> successfully generated some 3D triangulations and saved them in vtk or vtu
> file formats. However, I need to save them as one of the popular formats
> such as .ply, .stl, .obj or .wrl. Could you please tell me how can I save
> 3d
> triangulation in one of these formats? My other question is about setAlpha
> and setTolerance parameters, could you please explain me these parameters
> in
> detail?
> Thanks in advance
>
> int main( int argc, char* argv[] )
> {
>         //load the point cloud
>         vtkSmartPointer<vtkSimplePointsReader> reader =
> vtkSmartPointer<vtkSimplePointsReader>::New();
>         reader->SetFileName("kucuk50k.xyz");
>         reader->Update();
>         vtkPolyData* polydata = reader->GetOutput();
>         std::cout << "The point cloud is loaded" << std::endl;
>         //end of point cloud loading
>         std::cout << "----------------------------------------------" <<
> std::endl;
>         // Generate a mesh from the input points. If Alpha is non-zero,
> then
>         // tetrahedra, triangles, edges and vertices that lie within the
>         // alpha radius are output.
>         std::cout << "Start delaunay 3d triangulation" << std::endl;
>         vtkSmartPointer<vtkDelaunay3D> delaunay3DAlpha =
> vtkSmartPointer<vtkDelaunay3D>::New();
>         delaunay3DAlpha->SetInputConnection(reader->GetOutputPort());
>         delaunay3DAlpha->SetAlpha(0.01);
>         std::cout << "3d Delaunay computed" << std::endl;
>         std::cout << "----------------------------------------------" <<
> std::endl;
>         std::cout << "Start writing the triangulation" << std::endl;
>         vtkSmartPointer<vtkXMLUnstructuredGridWriter> ugWriter =
> vtkSmartPointer<vtkXMLUnstructuredGridWriter>::New();
>         ugWriter->SetInputConnection(delaunay3DAlpha->GetOutputPort());
>         ugWriter->SetFileName("delaunayy_50k.vtk");
>         ugWriter->Write();
>         std::cout << "VTK file created" << std::endl;
>         return EXIT_SUCCESS;
> }
>
>
>
> --
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> Sent from the VTK - Users mailing list archive at Nabble.com.
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