Re: [Discuss-gnuradio] wx-scope

[Johannes Demel]

Hi Michael,

is there any specific reason why you want to use wx-scope? WX is 
deprecated and the Qt instrumentations should be a full replacement with 
additional features at this point. Usually it is quite simple to move 
from WX to Qt. Do you have any OOT modules using WX which prevent you 
from moving to Qt?

Besides, the actual error tells you that a value was expected while a 
vector was passed to the function.

Could you try to disable the legend? Since the error is thrown within a 
conditional statement.

happy hacking
Johannes

On 05.11.2017 20:57, Michael Hartje wrote:
> dear list,
>
> after installing the new Gnuradio-Companion  there is no function in
> wx-scope (qt-scope works)
>
> GNU Radio Companion 3.7.12git-295-ga0adcd33 (installed via pybombs)
> pybombs version 2.3.2
> ubuntu 16.04.3 LTS
>
> Python 2.7 and 3.5 (standard -- calling python -- is 2.7)
>
> GRC-Example:
>
> a simple tone generator ,throttle and wx scope sink
>
> --> does not work:
>
> I got repetitive error lines until stopping the running
> tone-example-program:
>
> Starting the program shows:
>
> Generating: '/home/hartje/Dokumente/sdr/grc/tone_simple.py'
>
> Executing: /usr/bin/python2 -u /home/hartje/Dokumente/sdr/grc/tone_simple.py
>
> and then the repeated line
>
> --------
>
> ValueError: The truth value of an array with more than one element is
> ambiguous. Use a.any() or a.all()
> Traceback (most recent call last):
>   File
> "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/scopesink_nongl.py",
> line 533, in format_data
>     self.Draw(graphics, xAxis=x_range, yAxis=self.y_range)
>   File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/plot.py",
> line 903, in Draw
>     self._drawLegend(dc,graphics,rhsW,topH,legendBoxWH, legendSymExt,
> legendTextExt)
>   File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/plot.py",
> line 1206, in _drawLegend
>     o.draw(dc, self.printerScale, coord= _numpy.array([pnt1,pnt2]))
>   File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/plot.py",
> line 211, in draw
>     if coord == None:
> ValueError: The truth value of an array with more than one element is
> ambiguous. Use a.any() or a.all()
>
> ---------------
>
> the wx fft-plot works without any problems, wx-Instrumentation works as
> expected
>
> How can I get wx-scope to work properly?
>
> former (older) installations of GRC do work as expected (scope)
>
> Any help appreciated
>
> Thanks in advance
>
> Michael Hartje