Re: [Discuss-gnuradio] Help with wx-gui, window size error

[Thilina Mallawa Arachchi]

" This is a "guts of wxPython" thing.

Either there's no Xwindow server running, or they forgot to specify "WX GUI" in the generate options."

This may be the problem, I didnt manually specify WX GUI in the generate options. My install was completed by a scripted install via yaourt package manager on Arch Linux, no errors. I assume WX GUI was generated as I can run the WXGUI Waterfall Plot with no errors.

Xwindow server is running.

I did find a forum post with a reported fix to the problem, do you guys think I should try this? refer to last post in http://nuand.com/forums/viewtopic.php?t=3524&p=5164. I generally avoid trying to downgrade and manually install packages, it'd be better if there was a simpler solution.

Kind Regards,

Thil

On 6 June 2014 08:48, Tom Rondeau <address@hidden> wrote:

On Fri, Jun 6, 2014 at 11:44 AM, Marcus D. Leech <address@hidden> wrote:

On 06/06/2014 11:33 AM, Tom Rondeau wrote:

On Fri, Jun 6, 2014 at 4:32 AM, Thilina Mallawa Arachchi <address@hidden> wrote:

Hi,

I am having problems running a WX GUI FFT Sink, I am getting the following runtime error:

Traceback (most recent call last):

  File "/home/thilina/noctar/fm_rx/top_block.py", line 109, in <module>

    tb = top_block()

  File "/home/thilina/noctar/fm_rx/top_block.py", line 50, in __init__

    size=(720, 480),

  File "/usr/lib/python2.7/site-packages/gnuradio/wxgui/fftsink_nongl.py", line 198, in __init__

    self.win = fft_window(self, parent, size=size)

  File "/usr/lib/python2.7/site-packages/gnuradio/wxgui/fftsink_nongl.py", line 331, in __init__

    self.control_panel = control_panel(self)

  File "/usr/lib/python2.7/site-packages/gnuradio/wxgui/fftsink_nongl.py", line 256, in __init__

    wx.Panel.__init__(self, parent, -1, style=wx.SIMPLE_BORDER)

  File "/usr/lib/python2.7/site-packages/wx-3.0-gtk2/wx/_windows.py", line 68, in __init__

    _windows_.Panel_swiginit(self,_windows_.new_Panel(*args, **kwargs))

wx._core.PyAssertionError: C++ assertion "m_window" failed at ./src/gtk/dcclient.cpp(2041) in DoGetSize(): GetSize() doesn't work without window

Is this a know bug? whats the best way to fix it? I am new to gnuradio.

I'm running gnuradio 3.7.3-4

Kind Regards,

Thil

It's telling you that you haven't defined a window for the FFT. You can specify no window (iirc) by passing it '[]' or you can look at the fft.window module, which provides a set of windows you can define.

Tom

 

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Tom, you should look again.

This is a "guts of wxPython" thing.

Either there's no Xwindow server running, or they forgot to specify "WX GUI" in the generate options.

Dah! Wrong concept of a window! Sorry.

But I just got done giving the talk you were supposed to give, so, cut me some slack :) 

Tom

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