Sivan Toledo wrote: > Applications like the BBN 802.11 examples use the python flow_graph > class, which seems very similar to the C++ gr_flat_flowgraph. The same > seems to hold for their base classes, basic_flow_graph and > gr_flowgraph. > > Are the C++ graph classes used at all, and if so, what for (I can > imagine that they might be used are used for Python-free applications, > but I don't think I've seen any)?
The "old style" flow graph class is gr.flow_graph, which is implemented in Python and is supported through the 3.1 release series. Most code you see outside of our tree will use this as people haven't had much time to switch over to the new code. The "new style" flow graph code is implemented in C++, and not directly exported to Python. Instead, one creates a gr.top_block object, and populates it with connect(). Flow graphs can now be hierarchical, using gr.hier_block2. (Almost) all the example code in the GNU Radio now uses the gr.top_block and gr.hier_block2 code. The old style gr.flow_graph will be getting ripped out of the development trunk over the next few weeks. Since the new style code is written in C++, it allows creating "pure C++" GNU Radio applications, with no Python needed. There are a few other things that still need porting to C++ (USRP daughterboard handling code primarily), and this will happen for release 3.2. -- Johnathan Corgan Corgan Enterprises LLC http://corganenterprises.com _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
