Re: [Matplotlib-users] Has nxutils been removed from mpl?

[John H. <jd...@gm...>]

On Thu, Mar 8, 2012 at 10:21 AM, Dharhas Pothina <
Dha...@tw...> wrote:

>
>  + one on this issue. One of the big advantages of the nxutils points in
> poly is that you could pass it a large numpy array of points and get back a
> mask. We found this to be significantly faster than using looping through
> the single point in poly algorithms from packages like shapely. Echoing
> Jorge's question how would we do this using contains_point().
>

One could modify src/_path.cpp to expose a "points_in_path" method so the
looping would be done in C++.  The underlying work is being done
in point_in_path_impl and exposed to python as  point_in_path.  It would
not be too much work to expose a points_in_path method, but we would have
to think about what arguments to take and to return.  _path.cpp does not
currently depend on numpy, and doing things via python list would be slower
than what we currently have in nxutils which is array aware.

JDH