Re: [Discuss-gnuradio] Unable to use constellation block

On Fri, Dec 20, 2013 at 4:33 AM, Sandhya G <sandhya4343@gmail.com> wrote:

Hi everyone,

         I installed gnuradio using binary packages  provided by ETTUS RESEARCH .

         I installed gnuradio 3.7.2.1 and processor I'm using is intel i3 64bit.

Everything installed with no issues but when  using constellation block, I'm facing the some problem and below is the error

 File "/home/sandhya/top_block.py", line 16, in <module>
    from gnuradio.wxgui import constsink_gl
  File "/usr/lib/python2.7/dist-

packages/gnuradio/wxgui/constsink_gl.py", line 25, in <module>
    import const_window
  File "/usr/lib/python2.7/dist-packages/gnuradio/wxgui/const_window.py", line 25, in <module>
    import plotter
  File "/usr/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/__init__.py", line 22, in <module>
    from channel_plotter import channel_plotter
  File "/usr/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/channel_plotter.py", line 23, in <module>
    from grid_plotter_base import grid_plotter_base
  File "/usr/lib/python2.7/dist-packages/gnuradio/wxgui/plotter/grid_plotter_base.py", line 24, in <module>
    from OpenGL import GL
  File "/usr/lib/pymodules/python2.7/OpenGL/GL/__init__.py", line 11, in <module>
    from OpenGL.GL.VERSION.GL_1_2 import *
ImportError: No module named VERSION.GL_1_2

Checking out the previous thread I found two solutions

"First, you can probably install python-opengl on your system. Or you can turn of GL support by editing the file in (probably) /usr/local/etc/gnuradio/conf.

d/gr-wxgui.conf and change the 'style = auto' option to 'style = nongl"

But either of the two solutions are working and throwing me the same error.

Anyone can help me on this

Thanks

sandhya

The constellation sink does not have a non-OpenGL version, so you have to have OpenGL support (software and hardware). I'm guessing there is something more you need to do to get opengl on your system.

Tom