[vtkusers] Can not show points of STL file

[David E DeMarle]

VTK renders cells not points.

Try using a glyph filter to create 1 VTK_VERTEX cell for every point.

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109


On Mon, Jul 5, 2010 at 11:12 AM, Wahyudin Permana <gebe_top at yahoo.com>wrote:

> Dear All,
>
> I want to show points of STL file, but it doesn.t work, no error, but the
> points were not appear.
> any suggestion?
>
> Code:
>     STLPointData = new STLReading();
>         STLPointData.readSTL(name);  // IMPORTANT: ONLYREAD STL ASCII FILE
>
>         vtkPoints points = new vtkPoints();
>         vtkPolyData polyData = new vtkPolyData();
>         vtkUnstructuredGrid unstructuredGrid = new vtkUnstructuredGrid();
>
>         int i = 0, j = 0, k = 0;
>         int n;
>         n = STLPointData.size();
>         points.SetNumberOfPoints(n);
>         System.out.println("Number of points= "+n);
>         for(i=0;i<n;i++){
>             double x = 0,y = 0,z = 0;
>             //for(j=0;j<3;j++){
>             //}
>             x=(Double)((Vector)STLPointData.get(i)).get(0);
>             y=(Double)((Vector)STLPointData.get(i)).get(1);
>             z=(Double)((Vector)STLPointData.get(i)).get(2);
>             points.InsertPoint(i, x, y, x);
>             System.out.println("X= "+x+", Y= "+y+", Z= "+z);
>         }
>
>         vtkConeSource cone = new vtkConeSource();
>
>         polyData.SetPoints(points);
>         polyData.Squeeze();
>         vtkPolyDataMapper mapper = new vtkPolyDataMapper();
>         mapper.SetInput(polyData);
>         //mapper.SetInput(cone.GetOutput());
>
>         //unstructuredGrid.SetPoints(points);
>         //vtkDataSetMapper dataMapper = new vtkDataSetMapper();
>         //dataMapper.SetInput(unstructuredGrid);
>         //dataMapper.SetInput(polyData);
>
>         vtkActor stlActor = new vtkActor();
>         vtkProperty property = new vtkProperty();
>         property.SetColor(0.3, 0.8, 0.3);
>         stlActor.SetMapper(mapper);
>         //stlActor.SetMapper(dataMapper);
>         stlActor.SetProperty(property);
>
>         vtkRenderer ren2; //= new vtkRenderer();
>         ren2 = renWin2.GetRenderer();
>         ren2.AddActor(stlActor);
>         ren2.SetBackground(0.1, 0.1, 0.8);
>
>         ren2.ResetCameraClippingRange();
>         ren2.ResetCamera();
>
>         ren2.Render();
>
>
> thank you
>
> ============================================================
> regards,
> Wahyudin Permana
> Phone:
> Indonesia (Jakarta): +628151871130
> Saudi Arabia (Riyadh): +966569143445
> ============================================================
>
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