can return index of input data?

[binfsuc]

hello ,I really like this algorithm, I want to return index of concave point in original data, What a good advice?

[district10]

I created a python binding for this: https://concave-hull.readthedocs.io/en/latest/

It can return index of hull points. impl: https://github.com/cubao/concave_hull/blob/b67c38ebc4869ac51513ae48b776f12312aa8e8f/src/concaveman.h#L719