s59mz / gr-display

QT based PNG display sink for gnuradio

##gr-display is a small qt based addon for gnuradio.

It contains three components:

• show_image : display png images.

• show_text : display ascii characters as text in a qt window.

• display_text_msg : display a message containing text, or a message of type u8vector

Messages of type u8vector are provided by gr_satellites decoder, for example.

I use show_image to receive and display some weather- satellite pictures with the funcube dongle and gnuradio.

All blocks are using the latest 3.9 api.

You'll find them in:

Custom

    Display

1. Dependencies:

   -- gnuradio (3.9) with pybind11

   -- gr-qtgui

   -- qt5

2. Installation

   get the latest code from https://github.com/dl1ksv/gr-display

   The build process is cmake based. So change to the code directory.

   There

   $mkdir build

   $cd build

   $cmake -DCMAKE_INSTALL_PREFIX= < where gnuradio is installed > ../

   $make

   $sudo make install

   After that you'll find in grc in DL1KSV / Display

   • Display a text message

   • PNG Image sink

   • Text sink.

   ++++ If you are unsure about where gnuradio is installed run

   gnuradio-config-info --prefix

   Hint: If you install gr-display to an other directory than gnuradio, don't forget to add the location of your python modules to the PYTHONPATH environment variable

3. To do

   Perhaps do some simple image processing like rotating before saving.