[vtkusers] Multiple vtkTkRenderWidget in python

[David Gobbi]

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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