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# PointSource

VTKEx/Python/GeometricObjects/PointSource

Question

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### Code

PointSource.py

    import vtk

    def main():
        colors = vtk.vtkNamedColors()

        # create a rendering window and renderer
        ren = vtk.vtkRenderer()
        renWin = vtk.vtkRenderWindow()
        renWin.AddRenderer(ren)

        # create a renderwindowinteractor
        iren = vtk.vtkRenderWindowInteractor()
        iren.SetRenderWindow(renWin)

        # create source
        src = vtk.vtkPointSource()
        src.SetCenter(0, 0, 0)
        src.SetNumberOfPoints(50)
        src.SetRadius(5)
        src.Update()

        # mapper
        mapper = vtk.vtkPolyDataMapper()
        mapper.SetInputConnection(src.GetOutputPort())

        # actor
        actor = vtk.vtkActor()
        actor.SetMapper(mapper)
        actor.GetProperty().SetColor(colors.GetColor3d("Tomato"))
        actor.GetProperty().SetPointSize(4)

        # assign actor to the renderer
        ren.AddActor(actor)
        ren.SetBackground(colors.GetColor3d("DarkGreen"))

        # enable user interface interactor
        iren.Initialize()
        renWin.Render()
        iren.Start()

    if __name__ == '__main__':
        main()