Fw: Message vtkUser
Michel Audette
m.audette at aist.go.jp
Wed Dec 8 21:31:17 EST 2004
Hello everyone,
my student had the following problem with a python program featuring
multiple vtkTkRenderWidget calls. See below...
Can anyone suggest a workaround?
Best regards,
Michel
Michel Audette, Ph.D.,
Research Fellow, Surgical Simulation,
Surgical Assist Technology Group,
AIST,
Namiki 1-2,
Tsukuba, Japan,
305-8564.
--------------------------------------------------------
"If you think you can do it, you're right.
If you think you can't do it, you're still right."
- Henry Ford
>
> I have some problems with management of many vtkTkRenderWidget.
>
> I am developing GUI for surgical software in Python Language.
> Each window of this GUI have one vtkTkRenderWidget to show 3D Objects
> (One of them used the vtksliceWidget develop by Atamai).
> I succeed to show one objects in one of these windows.
> But if I try to open another one I get this error:
>
> File "/usr/local/lib/python2.2/lib-tk/Tkinter.py", line 1316, in __call__
> return apply(self.func, args)
> File "selection.py", line 64, in <lambda>
> command = lambda:
> File "functionclass.py", line 550, in entranceTriplan
> self.show2(self.triplan)
> File "functionclass.py", line 164, in show2
> self.affichageTriplan("exemple.mnc")
> File "functionclass.py", line 584, in affichageTriplan
> self.viewer1 = vtkSliceWidget.vtkSliceWidget(self.triplan.frame1,
> width=256,height=256)
> File "/home/athinnes/atamai/examples/vtkSliceWidget.py", line 108, in
> __init__
> Tkinter.Widget.__init__(self, master, 'vtkTkRenderWidget', cnf, kw)
> File "/usr/local/lib/python2.2/lib-tk/Tkinter.py", line 1780, in
> __init__
> self.tk.call(
> TclError: invalid command name "vtkTkRenderWidget"
>
> This following is a simplify version of the software architecture without
> using vtkSliceWidget .
> Each module corresponding to one part of the interface:
>
> ######################################################################
> #testfunc.py
>
> from Tkinter import *
> from vtkTkRenderWidget import *
> import triplantest
> import bouton
> import render
>
> class Functions:
>
> def __init__(self, myParent):
> print "functions class created"
> # If you comment the self.render line. The button will open the
> triplantest window
> self.render = render.Render(self, myParent)
>
> self.bouton = bouton.Bouton(self)
> self.triplan = triplantest.Triplan(self)
>
> ## Procedure: show
> # this procedure is call to show on the screen the windows winname
> def show(self, winname):
> winname.deiconify()
> self.affichageTriplan()
>
> ## Procedure: affichageTriplan
> # This procedure setup the slice image inside triplan interface
>
> def affichageTriplan(self):
>
> self.renderWidget = vtkTkRenderWidget(self.triplan.frame1)
> self.renderWidget.pack(expand='true',fill='both')
>
>
> if __name__ == '__main__':
>
> root = Tk()
> function = Functions(root)
> function.triplan.withdraw()
> root.mainloop()
>
> #######################################################################
> #render.py
>
> from vtkTkRenderWidget import *
> from vtkpython import *
> from Tkinter import *
>
> class Render:
>
> def __init__(self, myFunctions, myParentFunction):
>
> self.functions = myFunctions
> myParentFunction.title("test vtkTkRenderWidget")
>
> self.viewer = Frame(myParentFunction, borderwidth = 2, relief =
> "ridge")
> self.renderWidget = vtkTkRenderWidget(self.viewer)
>
> self.viewer.pack(expand='true',fill='both')
> self.renderWidget.pack(expand='true',fill='both')
>
> #########################################################################
> #
> #triplantest.py
>
> from Tkinter import *
>
> class Triplan(Tk):
> def __init__(self, myFct):
> Tk.__init__(self)
>
> self.functions = myFct
> self.title("Frame for vtkSliceWidget")
>
> self.mainframe = Frame(self)
> self.frame1 = Frame(self.mainframe, relief="ridge", borderwidth=2)
>
> self.frame1.pack(expand='true',fill='both')
> self.mainframe.pack(expand='true',fill='both')
>
> ###############################################################
> #bouton.py
>
> from Tkinter import *
> class Bouton(Tk):
>
> def __init__(self, myFunctions):
> Tk.__init__(self)
> self.functions = myFunctions
> self.title("Click On Button")
> self.frame = Frame(self)
> self.bouton = Button(self.frame, text = "click \nhere",
> command = lambda:
> self.functions.show(self.functions.triplan)
> )
>
> self.frame.pack(expand='true',fill='both')
> self.bouton.pack(expand='true',fill='both')
>
> ######################################################################3
>
> If you run "python testfunc.py" you will see the error. It's the same I
> have in the full software.
>
> Somebody have any idea why it's not working and how to solve it?
> It seams, vtkTkRenderWidget cannot be call twice. But I don't know how to
> solve it.
>
> Thank you for your attention
> Best regards
> Alexandre Thinnes
>
>
> Je dois avoir un probleme de mail avec l'AIST.
> Il semble que l'adresse qui envois les mails ne soit pas celle qui les
> recois. >_<
>
> Accédez au courrier électronique de La Poste : www.laposte.net ;
> 3615 LAPOSTENET (0,34?/mn) ; tél : 08 92 68 13 50 (0,34?/mn)
>
>
>
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