[vtkusers] Fw: Message vtkUser

[Michel Audette]

Hi Tom,

thanks for your kind message. I've forwarded your message to my student,
Alex. We are working on a plan B, that might involve one program with a call
to vtkTkRenderWidget interacting with a second program with its own call.

To the users: if anyone else hears of a fix or workaround, please advise.

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
----- Original Message ----- 
From: "tom fogal" <tfogal at apollo.sr.unh.edu>
To: "Michel Audette" <m.audette at aist.go.jp>
Cc: <vtkusers at vtk.org>
Sent: Thursday, December 09, 2004 10:55 AM
Subject: Re: [vtkusers] Fw: Message vtkUser


> <001701c4dd94$00b644e0$3a751d96 at surgsim2>"Michel Audette" writes:
> >Hello VTKuser,
> >
> >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:
>
> I know someone who had a similar error. "Sometimes" opening another
> vtkTkRenderWidget window in python (didn't try C++) would cause his
> entire X server to crash. He tore his hair out over it for over a week.
>
> A solution was never found. He reworked his app so that it didn't use
> multiple Tk render windows, and the problem went away.
>
> Daunting news, I know. Sorry. If you find a solution, the list (or at
> the very least, me) would love to hear about it.
>
> -tom
>
> >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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