Problem with vpython+tkinter
Steven Masfaraud
I am trying to control a Vpython Model by a little tkinter Interface.
In the code below, i am trying to move a box along the x axis by moving a slider in tkinter interface.
I get a strange errror "ValueError: invalid literal for float(): 0,000" from the tkinter slider that i don't get if comment/uncomment as showed in the code.
It seems like vpython can't work with tkinter.
As anyone ever worked with tkinter+vpython?
import visual as vs
import Tkinter as tk
class VisualModel:
def __init__(self):
self.scene=vs.display(center=(0,0,0),background=(1,1,1))
self.scene.exit=False
self.box=vs.box(pos=(0,0,0))
def Update(self,x):
self.box.pos=(x,0,0)
class ControlWindow(tk.Frame):
def __init__(self,vs_model):
self.window = tk.Tk()
self.vs_model=vs_model
tk.Frame.__init__(self, self.window)
self.slider = tk.Scale(self.window, from_=0, to=1,resolution=0.001,command=self.Update)
self.slider.pack(side=tk.LEFT)
self.window.mainloop()
def Update(self,arg=None):
x=self.slider.get()
print x
self.vs_model.Update(x)# Comment this line
vsm=VisualModel() # Comment this line
w=ControlWindow(vsm)# Comment this line
#w=ControlWindow(None)# Uncomment this line
--
Bruce Sherwood
See the VPython example program widgets.py for how to access wxPython widgets. My impression is that the wxPython widget set is at least as powerful as that of Tkinter.
Steven Masfaraud
Le mercredi 23 avril 2014 16:50:09 UTC+2, Bruce Sherwood a écrit :
I don't think it is possible to use Tkinter with VPython, which is based on the GUI library wxPython. Even with your program not giving an error, note that the box doesn't appear. This is due to the fact that the rendering of the 3D objects, and the handling of events, goes through the wxPython machinery, which is inaccessible when Tkinter takes over these responsibilities.
See the VPython example program widgets.py for how to access wxPython widgets. My impression is that the wxPython widget set is at least as powerful as that of Tkinter.
I get this error while running this code on linux mint with the debian packages python-visual and python-tk providing Visual and Tkinter. On Windows with the distribution Winpython this code works perfectly!