Dear Ali, The task that you want to do can be done with Bokeh library <https://bokeh.pydata.org/en/latest/>. I am not sure how to do it but may be you can ask on their forum or can check their examples like this one <https://bokeh.pydata.org/en/latest/docs/gallery/texas.html>. We have a GNU Radio streaming integration with the Bokeh here <https://github.com/kartikp1995/gr-bokehgui> that provides the streaming over the network. You may have to add your own new type of Bokeh plot (see Waterfall plot) or can use existing plots and modify some parameters of those.
This integration is fairly new (so, it may have bugs) but probably best fit for your task. Regards, Kartik Patel On Fri, Oct 13, 2017 at 8:53 AM, Marcus Müller <muel...@kit.edu> wrote: > Dear Ali, > > yes, that's possible, but it's really hard to make matplotlib play > alongside with other GUI toolkits. Good luck. I've already suggested > multiple times not to use matplotlib for your use case – believe me, that > happened out of experience. > > Best regards, > Marcus > > On 10/13/2017 03:30 PM, Ali wrote: > > Hi to all, > > As I mentioned above, I am trying to plot the real-time outputs of a grc > file. I am using the approach given in the link below. Taking two outputs > via message sink and then plotting them by matplotlib functions. > > http://recolog.blogspot.com.tr/2015/08/processing-data-out- > of-gnuradio.html > > In this approach, GRC is running "in background". Even I have number > sinks, sliders or other wx/qt gui tools, they are not shown. Only > matplotlib plots the data. > In short, I want to see both matplotlib figure and for example a WX FFT > Sink window of GNURadio. Is it possible? How? > > Thanks, > Ali > > > > 2017-09-28 9:36 GMT+03:00 Ali <03do...@gmail.com>: > >> Hi to all, >> >> For those who are interested in, the approach in the following link seems >> to be useful. I tried for my case, and it is working fine. >> >> http://recolog.blogspot.com.tr/2015/08/processing-data-out- >> of-gnuradio.html >> >> Thanks, >> Ali >> >> 2017-09-21 20:04 GMT+03:00 Marcus Müller <marcus.muel...@ettus.com>: >> >>> Interesting! >>> >>> So, my approach in this case would be: >>> >>> 1. Write a block that takes the data from your flow graph, and converts >>> it to a format (e.g. JSON, KML, GPX,…) that makes sense for the receiving >>> end. This data should be emitted as messages (not python variables). >>> 2. use a UDP or ZeroMQ (I recommend the latter) to send these messages >>> out >>> 3. Write a really minimal web application that receives the things from >>> 2. and updates a browser visualization. Use your own images or simply >>> OpenStreetMap as base layer. >>> >>> You can of course also write your own visualization block. That's >>> absolutely feasible; it's just that matplotlib is really not the tool of >>> choice for that here. But it's definitely not the software you need, >>> either, to draw points on an image. There's literally dozens of python >>> toolkits that can display images and modify them. >>> >>> Writing visualization blocks will require you to think about how to >>> thread them. And since it'll be hard for the block to interact with the >>> main thread, but that would be necessary for GUI blocks to work, I don't >>> know whether that is an entry level project. Anyway, do have a look at Tim >>> O'Shea gr-pyqt ; it contains python visualization blocks, and I don't think >>> it'll be hard to understand and modify them. Look at the raster_plot.py for >>> example. >>> >>> Best regards, >>> >>> Marcus >>> On 09/20/2017 10:21 PM, Ali wrote: >>> >>> Hi, >>> >>> Actually I want to draw coordinates on a map. So I want to upload a >>> map(a png file, like using imshow function in MATLAB, matplotlib) and then >>> draw points on this map. I think it is not possible by just using QT >>> instruments. >>> >>> Regards, >>> Ali >>> >>> 2017-09-20 21:14 GMT+03:00 Marcus Müller <marcus.muel...@ettus.com>: >>> >>>> Dear Ali, >>>> >>>> don't convert data streams to Python variables. Just use the Qt >>>> instrumentation plots that directly come with GNU Radio, they are actually >>>> meant for this. >>>> >>>> Matplotlib is *definitely* not what you want to use for live plots. Far >>>> too slow. >>>> >>>> Best regards, >>>> >>>> Marcus >>>> >>>> On 09/20/2017 01:29 AM, Ali wrote: >>>> >>>> Hi everyone, >>>> >>>> I have a flowchart in which USRP's are running and after some blocks 2 >>>> variables are produced at the output. >>>> >>>> As the inputs change, outputs change. I want to *dynamically* plot >>>> these two variables on x and y axis. I am willing to use matplotlib. >>>> >>>> What do you suggest to plot these variables? >>>> >>>> 1- Write them to a .txt file and read by matplotlib at the same time, >>>> 2- Without writing the variable anywhere, directly use in >>>> matplotlib(somehow) >>>> 3- Write a python block and use in GRC directly >>>> >>>> I don't know whether these can be applied or not. I am open to any >>>> ideas. >>>> >>>> Regards, >>>> Ali >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> Discuss-gnuradio mailing >>>> listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>>> >>>> _______________________________________________ Discuss-gnuradio >>>> mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/ >>>> listinfo/discuss-gnuradio >>> >>> >> > > > _______________________________________________ > Discuss-gnuradio mailing > listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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