#!/usr/bin/env python
import vtk
filename = "myfile.stl"
reader = vtk.vtkSTLReader()
reader.SetFileName(filename)
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(reader.GetOutputPort())
actor = vtk.vtkActor()
actor.SetMapper(mapper)
# Create a rendering window and renderer
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
# Create a renderwindowinteractor
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# Assign actor to the renderer
ren.AddActor(actor)
# Enable user interface interactor
iren.Initialize()
renWin.Render()
iren.Start()
