[vtkusers] Can't save after fillHoles filter

[Bill Lorensen]

The winding of the triangles in the filled holes is wrong. Add
  vtkSmartPointer<vtkPolyDataNormals> normals =
    vtkSmartPointer<vtkPolyDataNormals>::New();
  normals->SetInputConnection(fillHolesFilter->GetOutputPort());
  normals->ConsistencyOn();
  normals->SplittingOff();
  normals->Update();
 And save the output of normals.



On Sat, Aug 3, 2013 at 2:26 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> Perhaps the filled holes have triangles ordered in the wrong direction.
>
>
> On Sat, Aug 3, 2013 at 10:54 AM, andyjk <andrewkeeling at hotmail.com> wrote:
>
>> You are right Bill, it works correctly when I load the filledHoles stl
>> back
>> using vtk.
>>
>> It's strange that Meshlab shows the unfilled model, despite whether I use
>> vtkSTLWriter or vtkPLYWriter.
>>
>> Is there some quirk of these file formats or something ? I need a
>> watertight
>> mesh but am not sure whether my mesh is watertight outside of VTK ?
>>
>>
>>
>> --
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