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############################################################
from vtk import *
############################################################
# Create sources
line1 = vtkLineSource()
line1.SetPoint1( 1, 0, 0 )
line1.SetPoint2( -1, 0, 0 )
line1.SetResolution( 32 )
points = vtkPoints()
points.InsertNextPoint( 1, 0, 0 )
points.InsertNextPoint( -.5, 1, 0 )
points.InsertNextPoint( 0, 1, 2 )
points.InsertNextPoint( 2, 1, -1 )
points.InsertNextPoint( -1, 0, 0 )
line2 = vtkLineSource()
line2.SetPoints( points )
line2.SetResolution( 16 )
# Create mappers
mapper1 = vtkPolyDataMapper()
mapper1.SetInputConnection( line1.GetOutputPort() )
mapper2 = vtkPolyDataMapper()
mapper2.SetInputConnection( line2.GetOutputPort() )
# Create actors
actor1 = vtkActor()
actor1.SetMapper( mapper1 )
actor1.GetProperty().SetColor( 1., 0., 0. )
actor2 = vtkActor()
actor2.SetMapper( mapper2 )
actor2.GetProperty().SetColor( 0., 0., 1. )
actor2.GetProperty().SetLineWidth( 2.5 )
# Create renderer
renderer = vtkRenderer()
renderer.AddViewProp( actor1 )
renderer.AddViewProp( actor2 )
renderer.SetBackground( .3, .4 ,.5 )
# Create render window
window = vtkRenderWindow()
window.AddRenderer( renderer )
window.SetSize( 500, 500 )
# Create interactor
interactor = vtkRenderWindowInteractor()
interactor.SetRenderWindow( window )
# Start interaction
window.Render()
interactor.Start()
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