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vtkstuff.py
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vtkstuff.py
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import vtk
def ex():
# create a rendering window and renderer
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
WIDTH=640
HEIGHT=480
renWin.SetSize(WIDTH,HEIGHT)
# create a renderwindowinteractor
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
# create cone
cone = vtk.vtkConeSource()
cone.SetResolution(60)
cone.SetCenter(-2,0,0)
# mapper
coneMapper = vtk.vtkPolyDataMapper()
coneMapper.SetInput(cone.GetOutput())
# actor
coneActor = vtk.vtkActor()
coneActor.SetMapper(coneMapper)
# assign actor to the renderer
ren.AddActor(coneActor)
# enable user interface interactor
iren.Initialize()
renWin.Render()
iren.Start()
import math
def ex1():
p0 = (0,0,0)
p1 = (1,1,1)
distSquared = vtk.vtkMath.Distance2BetweenPoints(p0,p1)
dist = math.sqrt(distSquared)
print "p0 = ", p0
print "p1 = ", p1
print "distance squared = ", distSquared
print "distance = ", dist
def ex2():
arrowSource = vtk.vtkArrowSource()
# arrowSource.SetShaftRadius(0.01)
# arrowSource.SetTipLength(.9)
# Create a mapper and actor
mapper = vtk.vtkPolyDataMapper()
mapper.SetInputConnection(arrowSource.GetOutputPort())
actor = vtk.vtkActor()
actor.SetMapper(mapper)
# Visualize
renderer = vtk.vtkRenderer()
renderWindow = vtk.vtkRenderWindow()
renderWindow.AddRenderer(renderer)
renderWindowInteractor = vtk.vtkRenderWindowInteractor()
renderWindowInteractor.SetRenderWindow(renderWindow)
renderer.AddActor(actor)
renderer.SetBackground(.1, .2, .3) # Background color dark blue
renderWindow.Render()
renderWindowInteractor.Start()