python_cpp_example

Minimal example building a C++ python extension.

Useful links:

• Using NumPy C-API

Build instructions

Simplified build using make

$ make #build c extension inplace

$ make help
clean                Remove the build folder and the shared library
debug                Build extension with debug prints and assertions
ext                  [DEFAULT] build c extension in place
test                 Run unit tests using pytest

Manual build

#build in place and use from the same folder
#sometimes necessary to remove build folder and .so
#by hand
$ python setup.py build_ext --inplace

To use make sure that the .so and potentially python files are in PYTHONPATH (or installed in developer mode)

#conda
$ conda develop install . 

#or with pip
$ pip install --editable .

Cluster file specifications

[int32 frame_number][int32 n_clusters][clusters....]

// Cluster data type
typedef struct {
  int16_t x;
  int16_t y;
  int32_t data[9];
} Cluster ;