[Discuss-gnuradio] problem with qt constellation block

[zielalaoui]

Hi All,
I'm trying to built a system with several digital modulations. First, I
should be able to print constellations by using qt constellation block. I
started by creating a simple flowgraph with two modulations. That is my
flowgraph  <http://gnuradio.4.n7.nabble.com/file/n48338/qt_applic.jpeg>  .
I take the top_block.py file and I tried to modify it by adding new function
to switch  the null sink and the constellation block by using disconnect()
and connect() function. finally in the main function i added lock() and
unlock() functions to reconfigure the application.
the problem is when i run the modified python file the constellation graphic
appear but it conserves the first constellation representation even the
switching is happened .
what do you think about that?
should I write something to rerun the qt application?
I appreciate your help 



--
View this message in context: 
http://gnuradio.4.n7.nabble.com/problem-with-qt-constellation-block-tp48338.html
Sent from the GnuRadio mailing list archive at Nabble.com.