Re: [Discuss-gnuradio] FFT Plot and Benchmark
Tom Rondeau wrote: The coupling of the flow graph and the Wx architecture was one of my motivations for writing the gr-qtgui. You should be able to from gnuradio.qtgui import qtgui then drop a sink (qtgui.sink_c(args)) and connect the signal block you want to observe to this sink. Remember that when you start the flow graph use tb.start() and not tb.run() and then execute the Qt application with a qapp.exec_(), which blocks until closed. Note that you'll have to install a few Qt-related things (Qt 4.3, PyQt, QWT, and QWT Plot 3D). If you running Ubuntu or Fedora, these are available from your package manager. You can find examples of how to use this in gr-qtgui/src/python with more complicated examples that allow you to build a full QT application with the sink display embedded in it. If you just use a sink and start the QApp, you just get a modal dialog box. You can have multiple QT sinks going at once, too. Tom thank you Tom. I had run the usrp_display.py inside the gr-qtgui, it was very interesting. I see that you doesn't use the wxpyton any more and you use the qtgui isn't it? but I cannot find where it do the inserting data for plotting process. in usrp_fft.py it use the fftsink_nongl.py or fftsink_gl.py for the plotting process right?and fftsink_nongl.py insert the data for plotting in set_data function inside the fft_window class. so in fftsink_nongl.py, I tab the evt.data (inside the set_data function) and manipulate it to do my sensing mechanism. I see that the usrp_display.py call the qtgui.py for the plotting process and I think qtgui.py call it's C++ file for further processes isn't it? so how and where can I can tab the data like evt.data in usrp_display or qtgui? could you please explain a bit on how does usrp_display do the plotting process? thank you very much. Adib -- View this message in context: http://www.nabble.com/FFT-Plot-and-Benchmark-tp24405668p24766931.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] FFT Plot and Benchmark
adib_sairi wrote: thank you Tom. I had run the usrp_display.py inside the gr-qtgui, it was very interesting. I see that you doesn't use the wxpyton any more and you use the qtgui isn't it? but I cannot find where it do the inserting data for plotting process. in usrp_fft.py it use the fftsink_nongl.py or fftsink_gl.py for the plotting process right?and fftsink_nongl.py insert the data for plotting in set_data function inside the fft_window class. so in fftsink_nongl.py, I tab the evt.data (inside the set_data function) and manipulate it to do my sensing mechanism. I see that the usrp_display.py call the qtgui.py for the plotting process and I think qtgui.py call it's C++ file for further processes isn't it? so how and where can I can tab the data like evt.data in usrp_display or qtgui? could you please explain a bit on how does usrp_display do the plotting process? thank you very much. Adib I had search some more and found out that for the frequency plot, you use FrequencyDisplayPlot (.h and .cc) right? and i found that you use the _dataPoints pointer to plot the graph. i manage to tab the data by using _dataPoints[which].. but manipulating in c++ seams to be quite complicated. i would like to return and import this value (_dataPoints) to python but i don't know how.. could somebody guide me for this? i think fftsink_nongl.py does receive some data from c++ file (i think) but i also don't know how.. please somebody help me for this.. thank you very much in advance.. Adib -- View this message in context: http://www.nabble.com/FFT-Plot-and-Benchmark-tp24405668p24771599.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] FFT Plot and Benchmark
adib_sairi wrote: Ali Siddiqi wrote: Hi all, I looked at fftsink_gl.py. It couldnt be executed because of import error of fft_window. Also, if in case I manage to run it, still I am finding it difficult to incoporate it in benchmark_tx.py. Can someone elaborate a bit more on how to add FFT sink in benchmark_tx? Regards, Ali i try to work on this also but i still cannot put fftsink_nongl.py and benchmark_tx or benchmark_rx together.. the problem i face is benchmark_* have its own flowgraph which use .start and .wait for it to run.. i.e tb.start and tb.wait while fftsink_nongl use stdgui2.stdapp and Mainloop to run.. i.e app = stdgui2.stdapp(app_top_block, USRP FFT, nstatus=1) app.MainLoop() when i run tb.start or tb.run and tb.wait, it seem that my fftsink_nongl that i had connect with usrp_source in the first place is stopping.. so can any body help me on combining this two system together? how to run this two flowgraph together? what i want to do is i want to sense the spectrum using fftsink_nongl.py and looking for spectrum hole and access the hole by using benchmark_tx and benchmark_rx.. thank you in advance Adib The coupling of the flow graph and the Wx architecture was one of my motivations for writing the gr-qtgui. You should be able to from gnuradio.qtgui import qtgui then drop a sink (qtgui.sink_c(args)) and connect the signal block you want to observe to this sink. Remember that when you start the flow graph use tb.start() and not tb.run() and then execute the Qt application with a qapp.exec_(), which blocks until closed. Note that you'll have to install a few Qt-related things (Qt 4.3, PyQt, QWT, and QWT Plot 3D). If you running Ubuntu or Fedora, these are available from your package manager. You can find examples of how to use this in gr-qtgui/src/python with more complicated examples that allow you to build a full QT application with the sink display embedded in it. If you just use a sink and start the QApp, you just get a modal dialog box. You can have multiple QT sinks going at once, too. Tom ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] FFT Plot and Benchmark
Ali Siddiqi wrote: Hi all, I looked at fftsink_gl.py. It couldnt be executed because of import error of fft_window. Also, if in case I manage to run it, still I am finding it difficult to incoporate it in benchmark_tx.py. Can someone elaborate a bit more on how to add FFT sink in benchmark_tx? Regards, Ali i try to work on this also but i still cannot put fftsink_nongl.py and benchmark_tx or benchmark_rx together.. the problem i face is benchmark_* have its own flowgraph which use .start and .wait for it to run.. i.e tb.start and tb.wait while fftsink_nongl use stdgui2.stdapp and Mainloop to run.. i.e app = stdgui2.stdapp(app_top_block, USRP FFT, nstatus=1) app.MainLoop() when i run tb.start or tb.run and tb.wait, it seem that my fftsink_nongl that i had connect with usrp_source in the first place is stopping.. so can any body help me on combining this two system together? how to run this two flowgraph together? what i want to do is i want to sense the spectrum using fftsink_nongl.py and looking for spectrum hole and access the hole by using benchmark_tx and benchmark_rx.. thank you in advance Adib -- View this message in context: http://www.nabble.com/FFT-Plot-and-Benchmark-tp24405668p24750422.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] FFT Plot and Benchmark
Ali Siddiqi wrote: Hi all, I looked at fftsink_gl.py. It couldnt be executed because of import error of fft_window. Also, if in case I manage to run it, still I am finding it difficult to incoporate it in benchmark_tx.py. Can someone elaborate a bit more on how to add FFT sink in benchmark_tx? Regards, Ali Good day, is there any progress in this Mr Ali? i also very interested to try this.. if you have any progress please post it again..:-) thank you very much in advance Adib -- View this message in context: http://www.nabble.com/FFT-Plot-and-Benchmark-tp24405668p24442557.html Sent from the GnuRadio mailing list archive at Nabble.com. ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] FFT Plot and Benchmark
Hi all, I have edited benchmark_tx.py to shift between 3 different frequencies, depending upon which one is free after sensing the apectrum. i have made a separate program which senses the spectrum and it is called in benchmark_tx. Thus the system switches between transmit (benchmark_tx) and receive (sensing) mode on a regular basis. This works fine. The problem arises when i want to show on the situation of the spectrum on a FFT Plot. I ran the GRC flowgraph (USRP Source--FFT Sink) in parallel with the above mentioned programs. But it doesnt work. Can someone help me in finding out how to add FFT Plot in the above programs. Regards, Ali ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] FFT Plot and Benchmark
On Thu, Jul 09, 2009 at 01:44:36PM +0600, ali siddiqi wrote: Hi all, I have edited benchmark_tx.py to shift between 3 different frequencies, depending upon which one is free after sensing the apectrum. i have made a separate program which senses the spectrum and it is called in benchmark_tx. Thus the system switches between transmit (benchmark_tx) and receive (sensing) mode on a regular basis. This works fine. The problem arises when i want to show on the situation of the spectrum on a FFT Plot. I ran the GRC flowgraph (USRP Source--FFT Sink) in parallel with the above mentioned programs. But it doesnt work. Can someone help me in finding out how to add FFT Plot in the above programs. If you look at gr-wxgui/src/python/fftsink_gl.py or fftsink_nongl.py you'll see that there is a complete standalone example at the bottom. You basically just instantiate a fft_sink_c or _f. Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] FFT Plot and Benchmark
Hi all, I looked at fftsink_gl.py. It couldnt be executed because of import error of fft_window. Also, if in case I manage to run it, still I am finding it difficult to incoporate it in benchmark_tx.py. Can someone elaborate a bit more on how to add FFT sink in benchmark_tx? Regards, Ali On Thu, Jul 9, 2009 at 10:29 PM, Eric Blossom e...@comsec.com wrote: On Thu, Jul 09, 2009 at 01:44:36PM +0600, ali siddiqi wrote: Hi all, I have edited benchmark_tx.py to shift between 3 different frequencies, depending upon which one is free after sensing the apectrum. i have made a separate program which senses the spectrum and it is called in benchmark_tx. Thus the system switches between transmit (benchmark_tx) and receive (sensing) mode on a regular basis. This works fine. The problem arises when i want to show on the situation of the spectrum on a FFT Plot. I ran the GRC flowgraph (USRP Source--FFT Sink) in parallel with the above mentioned programs. But it doesnt work. Can someone help me in finding out how to add FFT Plot in the above programs. If you look at gr-wxgui/src/python/fftsink_gl.py or fftsink_nongl.py you'll see that there is a complete standalone example at the bottom. You basically just instantiate a fft_sink_c or _f. Eric ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
