python 中vtk交互函数设定
tt
posted @ 2008年11月15日 19:10
in vtk
, 6724 阅读
由于在python中没有vtkCallbackCommand属性，只能采取其他方式设定鼠标交互，其实在python中设定交互更方便，看一个简单的例子tl.py
#!/usr/bin/env python
import vtk
picker = vtk.vtkCellPicker()
def pickerfunc (object, event):
#style = clientdata;
#pickPos = picker.GetPickPosition()
#print event
if event == 'LeftButtonPressEvent':
print 'DOK'
if event == 'LeftButtonReleaseEvent':
print 'ROK'
cone = vtk.vtkConeSource()
cone.SetHeight( 3.0 )
cone.SetRadius( 1.0 )
cone.SetResolution( 10 )
map = vtk.vtkPolyDataMapper()
map.SetInputConnection(cone.GetOutputPort())
actor = vtk.vtkActor()
actor.SetMapper(map)
ren = vtk.vtkRenderer()
ren.AddActor(actor)
ren.SetBackground(0.1, 0.2, 0.4)
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
renWin.SetSize(300, 300)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
style = vtk.vtkInteractorStyleTrackballCamera()
iren.SetInteractorStyle(style)
picker.AddObserver("EndPickEvent", pickerfunc) #将事件与回调函数建立连接
style.AddObserver ('LeftButtonPressEvent', pickerfunc)
style.AddObserver ('LeftButtonReleaseEvent', pickerfunc)
style.AddObserver ('MouseMoveEvent', pickerfunc)
#style.RemoveObservers ('LeftButtonPressEvent') ##删除消息事件连接
#style.RemoveObservers ('LeftButtonReleaseEvent')
#style.RemoveObservers ('MouseMoveEvent')
iren.SetPicker (picker)
iren.Initialize()
iren.Start()
import vtk
picker = vtk.vtkCellPicker()
def pickerfunc (object, event):
#style = clientdata;
#pickPos = picker.GetPickPosition()
#print event
if event == 'LeftButtonPressEvent':
print 'DOK'
if event == 'LeftButtonReleaseEvent':
print 'ROK'
cone = vtk.vtkConeSource()
cone.SetHeight( 3.0 )
cone.SetRadius( 1.0 )
cone.SetResolution( 10 )
map = vtk.vtkPolyDataMapper()
map.SetInputConnection(cone.GetOutputPort())
actor = vtk.vtkActor()
actor.SetMapper(map)
ren = vtk.vtkRenderer()
ren.AddActor(actor)
ren.SetBackground(0.1, 0.2, 0.4)
renWin = vtk.vtkRenderWindow()
renWin.AddRenderer(ren)
renWin.SetSize(300, 300)
iren = vtk.vtkRenderWindowInteractor()
iren.SetRenderWindow(renWin)
style = vtk.vtkInteractorStyleTrackballCamera()
iren.SetInteractorStyle(style)
picker.AddObserver("EndPickEvent", pickerfunc) #将事件与回调函数建立连接
style.AddObserver ('LeftButtonPressEvent', pickerfunc)
style.AddObserver ('LeftButtonReleaseEvent', pickerfunc)
style.AddObserver ('MouseMoveEvent', pickerfunc)
#style.RemoveObservers ('LeftButtonPressEvent') ##删除消息事件连接
#style.RemoveObservers ('LeftButtonReleaseEvent')
#style.RemoveObservers ('MouseMoveEvent')
iren.SetPicker (picker)
iren.Initialize()
iren.Start()
上面的函数可以实现在python中设定picker的消息处理函数，
2023年10月12日 17:19
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