[vtkusers] Multiple vtkTkRenderWidget in python

[David Gobbi]

Inside the code, you can identify a tk object by printing its address:

print(repr(tk))

 - David

On Mon, Apr 11, 2016 at 9:25 AM, CHENET Aude (External) <
Aude.CHENET-ext at galderma.com> wrote:

> I’ve tried to add your code just before the call to
> vtkTkRenderWindowInteractor. And there is the same error invalid command
> name "vtkTkRenderWidget"
>
> I’ve tried to call tk.call('vtkTkRenderWidget', '.vtkwidget') with the tk
> object I already have in my code, and there is no error.
>
> I’ll look to find if there are different tcl interpreter installed and
> used.
>
>
>
> Aude
>
>
>
> *De :* David Gobbi [mailto:david.gobbi at gmail.com]
> *Envoyé :* lundi 11 avril 2016 17:06
>
> *À :* CHENET Aude (External)
> *Cc :* vtkusers at public.kitware.com
> *Objet :* Re: [vtkusers] Multiple vtkTkRenderWidget in python
>
>
>
> Hi Aude,
>
>
>
> I suspect that, somehow, you end up with two separate tcl interpreters.
>
> But I don't know how that would happen.  Try something else for me:
>
>
>
>     import Tkinter
>
>     root = Tkinter.Tk()
>
>     from vtk.tk.vtkLoadPythonTkWidgets import vtkLoadPythonTkWidgets
>
>     vtkLoadPythonTkWidgets(root)
>
>     root.tk.call('vtkTkRenderWidget', '.vtkwidget')
>
>
>
> If this prints '.vtkwidget' then you know that vtkTkRenderWidget exists.
>
> If your program later says 'invalid command name "vtkTkRenderWidget"',
>
> then that message must be coming from a different tcl interpreter.
>
>
>
>  - David
>
>
>
>
>
>
>
> On Mon, Apr 11, 2016 at 8:57 AM, CHENET Aude (External) <
> Aude.CHENET-ext at galderma.com> wrote:
>
> The version I use is 6.3.0.
>
>
>
> I’ve tried what you’ve suggested, but didn’t work..
>
>
>
> Aude
>
>
>
> *De :* David Gobbi [mailto:david.gobbi at gmail.com]
> *Envoyé :* lundi 11 avril 2016 16:50
> *À :* CHENET Aude (External)
> *Cc :* vtkusers at public.kitware.com
> *Objet :* Re: [vtkusers] Multiple vtkTkRenderWidget in python
>
>
>
> Hi Aude,
>
>
>
> What version of VTK are you using?
>
>
>
> Can you try loading the vtkTkRederWidget binary model before opening the
> file dialog? For example, something like this:
>
>
>
>     import Tkinter
>
>     from vtk.tk.vtkLoadPythonTkWidgets import vtkLoadPythonTkWidgets
>
>     vtkLoadPythonTkWidgets(Tkinter.Tk())
>
>
>
>  - David
>
>
>
>
>
>
>
>
>
> On Mon, Apr 11, 2016 at 5:38 AM, CHENET Aude (External) <
> Aude.CHENET-ext at galderma.com> wrote:
>
> Hi,
>
>
>
> I’m using vtk with python and try to do the following program :
>
> Choose a file using tkFileDialog (filepath =
> tkFileDialog.askopenfilename(title="Choisir une image",filetypes=[('tif
> files','.tif'),('tiff files','.tiff')]))
>
> Show the image in a window (render_widget =
> vtkTkRenderWindowInteractor(renderer_frame,
>
>                                                     rw=renWin, width=600,
>
>                                                     height=500))
>
>
>
> My program have the following error
>
> Traceback (most recent call last):
>
>   *File "C:\Users\chenet-ext\workspace\OCT\src\afficheComplet.py", line
> 328, in <module>*
>
>     V = Viewer(filepath)#("D:\resultatsOCT\Didier Cheek01 b_reconstr.tif”)
>
>   *File "C:\Users\chenet-ext\workspace\OCT\src\afficheComplet.py", line
> 165, in __init__*
>
>     height=500)
>
>   *File
> "C:\Python27\Lib\site-packages\vtk\tk\vtkTkRenderWindowInteractor.py", line
> 70, in __init__*
>
>     Tkinter.Widget.__init__(self, master, 'vtkTkRenderWidget', cnf, kw)
>
>   *File "C:\Python27\Lib\lib-tk\Tkinter.py", line 2090, in __init__*
>
>     (widgetName, self._w) + extra + self._options(cnf))
>
> _tkinter.TclError: invalid command name "vtkTkRenderWidget"
>
>
>
> The program runs normally if I don’t call tkFileDialog to choose the file.
> It seems like we can’t call tkFileDialog and then create a
> vtkTkRenderWindowInteractor
>
> Does anyone have an idea?
>
>
>
> Aude
>
>
>
>
>
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