diff options
| author | Josh Morman <jmorman@perspectalabs.com> | 2019-08-30 09:47:42 -0400 |
|---|---|---|
| committer | devnulling <devnulling@users.noreply.github.com> | 2020-02-10 13:33:07 -0800 |
| commit | 3232eeb534b5ac1ab503f7f36254227b1cfba1f9 (patch) | |
| tree | c950d0e841644ed584737e905e315d778fe26f3e /gr-blocks | |
| parent | 838d081918f8e5ee3f28273237d8b74a8c0b9d9b (diff) | |
grc: add python snippets to GRC
This feature adds the ability to insert arbitrary code into the python
flowgraph. It gives a little more low-level flexibility for quickly
modifying flowgraphs and adding custom bits of code rather than having
to go and edit the generated py file
One example is synchronizing multiple USRP objects - sometimes you want
different sync than what is offered in the multi-usrp object, so you can
put a bit of code in the snippet block to do the custom synchronization
Diffstat (limited to 'gr-blocks')
| -rw-r--r-- | gr-blocks/examples/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | gr-blocks/examples/py_snippets_demo.grc | 290 |
2 files changed, 291 insertions, 0 deletions
diff --git a/gr-blocks/examples/CMakeLists.txt b/gr-blocks/examples/CMakeLists.txt index 44e2ca0d8a..c2a9b10897 100644 --- a/gr-blocks/examples/CMakeLists.txt +++ b/gr-blocks/examples/CMakeLists.txt @@ -9,6 +9,7 @@ install( FILES matrix_multiplexer.grc peak_detector2.grc + py_snippets_demo.grc selector.grc test_stream_mux_tags.grc vector_source_with_tags.grc diff --git a/gr-blocks/examples/py_snippets_demo.grc b/gr-blocks/examples/py_snippets_demo.grc new file mode 100644 index 0000000000..ebf070b4aa --- /dev/null +++ b/gr-blocks/examples/py_snippets_demo.grc @@ -0,0 +1,290 @@ +options: + parameters: + author: Josh Morman + catch_exceptions: 'True' + category: '[GRC Hier Blocks]' + cmake_opt: '' + comment: '' + copyright: Copyright 2020 + description: Show simple examples of Python Snippets inserted into flowgraph + gen_cmake: 'On' + gen_linking: dynamic + generate_options: qt_gui + hier_block_src_path: '.:' + id: snippets_demo + max_nouts: '0' + output_language: python + placement: (0,0) + qt_qss_theme: '' + realtime_scheduling: '' + run: 'True' + run_command: '{python} -u {filename}' + run_options: prompt + sizing_mode: fixed + thread_safe_setters: '' + title: Python Snippets Example Flowgraph + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [8, 8] + rotation: 0 + state: enabled + +blocks: +- name: samp_rate + id: variable + parameters: + comment: '' + value: '32000' + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [184, 12] + rotation: 0 + state: enabled +- name: foo_mod + id: epy_module + parameters: + alias: '' + comment: '' + source_code: "# this module will be imported in the into your flowgraph\n\ndef\ + \ add(a,b):\n return a+b\n" + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [850, 264] + rotation: 0 + state: true +- name: head_block + id: blocks_head + parameters: + affinity: '' + alias: '' + comment: '' + maxoutbuf: '0' + minoutbuf: '0' + num_items: '12' + type: float + vlen: '1' + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [937, 351] + rotation: 0 + state: true +- name: s0 + id: snippet + parameters: + alias: '' + code: 's = ''After start - 500 priority'' + + print(s)' + comment: '' + priority: '500' + section: main_after_start + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [263, 115] + rotation: 0 + state: true +- name: s1 + id: snippet + parameters: + alias: '' + code: 's = ''After start - 200 priority'' + + print(s)' + comment: '' + priority: '200' + section: main_after_start + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [264, 208] + rotation: 0 + state: true +- name: s2 + id: snippet + parameters: + alias: '' + code: 's = ''After start - negative priority'' + + print(s)' + comment: '' + priority: '-400' + section: main_after_start + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [267, 298] + rotation: 0 + state: true +- name: s3 + id: snippet + parameters: + alias: '' + code: 's = ''After start - 0 priority'' + + print(s)' + comment: '' + priority: '0' + section: main_after_start + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [270, 371] + rotation: 0 + state: true +- name: s4 + id: snippet + parameters: + alias: '' + code: 's = ''After Init - 100 priority'' + + print(s)' + comment: '' + priority: '100' + section: main_after_init + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [549, 88] + rotation: 0 + state: true +- name: s5 + id: snippet + parameters: + alias: '' + code: 'x = 4 + + y = foo_mod.add(x,x) + + print(y) + + s = ''After init - 200 priority'' + + print(s)' + comment: "This snippet shows how to call a \nmethod from an embedded python \n\ + module" + priority: '200' + section: main_after_init + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [550, 209] + rotation: 0 + state: true +- name: s6 + id: snippet + parameters: + alias: '' + code: 's = ''After Stop - 500 priority'' + + print(s)' + comment: '' + priority: '500' + section: main_after_stop + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [865, 52] + rotation: 0 + state: true +- name: s7 + id: snippet + parameters: + alias: '' + code: 's = ''After Stop - 200 priority'' + + print(s) + + print(self.vsink.data())' + comment: 'This snippet shows an example of calling + + a method on another block from within the + + flowgraph - (use at your own risk)' + priority: '200' + section: main_after_stop + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [1120, 55] + rotation: 0 + state: true +- name: throttle_block + id: blocks_throttle + parameters: + affinity: '' + alias: '' + comment: '' + ignoretag: 'True' + maxoutbuf: '0' + minoutbuf: '0' + samples_per_second: samp_rate + type: float + vlen: '1' + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [752, 384] + rotation: 0 + state: enabled +- name: vsink + id: blocks_vector_sink_x + parameters: + affinity: '' + alias: '' + comment: '' + reserve_items: '1024' + type: float + vlen: '1' + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [1118, 337] + rotation: 0 + state: true +- name: vsrc + id: blocks_vector_source_x + parameters: + affinity: '' + alias: '' + comment: '' + maxoutbuf: '0' + minoutbuf: '0' + repeat: 'True' + tags: '[]' + type: float + vector: list(range(10)) + vlen: '1' + states: + bus_sink: false + bus_source: false + bus_structure: null + coordinate: [531, 390] + rotation: 0 + state: true + +connections: +- [head_block, '0', vsink, '0'] +- [throttle_block, '0', head_block, '0'] +- [vsrc, '0', throttle_block, '0'] + +metadata: + file_format: 1 |