/usr/share/vtk/Rendering/Python/CADPart.py is in vtk-examples 5.8.0-5.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | #!/usr/bin/env python
# This simple example shows how to do basic rendering and pipeline
# creation. It also demonstrates the use of the LODActor.
# Import the VTK-Python module
import vtk
from vtk.util.misc import vtkGetDataRoot
from vtk.util.colors import *
# Get the location of the data.
VTK_DATA_ROOT = vtkGetDataRoot()
# This creates a polygonal cylinder model with eight circumferential
# facets.
part = vtk.vtkSTLReader()
part.SetFileName(VTK_DATA_ROOT + "/Data/42400-IDGH.stl")
# The mapper is responsible for pushing the geometry into the graphics
# library. It may also do color mapping, if scalars or other
# attributes are defined.
partMapper = vtk.vtkPolyDataMapper()
partMapper.SetInputConnection(part.GetOutputPort())
# The LOD actor is a special type of actor. It will change appearance
# in order to render faster. At the highest resolution, it renders
# ewverything just like an actor. The middle level is a point cloud,
# and the lowest level is a simple bounding box.
partActor = vtk.vtkLODActor()
partActor.SetMapper(partMapper)
partActor.GetProperty().SetColor(light_grey)
partActor.RotateX(30.0)
partActor.RotateY(-45.0)
# Create the graphics structure. The renderer renders into the render
# window. The render window interactor captures mouse events and will
# perform appropriate camera or actor manipulation depending on the
# nature of the events.
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# Add the actors to the renderer, set the background and size
ren.AddActor(partActor)
ren.SetBackground(0.1, 0.2, 0.4)
renWin.SetSize(200, 200)
# We'll zoom in a little by accessing the camera and invoking a "Zoom"
# method on it.
ren.ResetCamera()
ren.GetActiveCamera().Zoom(1.5)
# This starts the event loop.
iren.Initialize()
renWin.Render()
iren.Start()
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