Hi everyone, I would like to use the function points_in_poly to test if the point x,y is in the contour cont2 x=0 y=0, but I have the problem with any value of x and y: skimage.measure.points_in_poly(np.array([x,y]),cont2) where cont2 is a contour of type array : but I get the following error: "IndexError: invalid index" it is a little obscure for me, is there a problem with this function, or is it me who don't know how to apply it ? thanks a lot! Julien cont2 ndarray 7879x2: 15758 elems, type `float64`, 126064 bytes (123 kb) In [12]: skimage.measure.points_in_poly(np.array([0,0]),cont2) --------------------------------------------------------------------------- IndexError Traceback (most recent call last) /home/julien/Dropbox/density_seiche/<ipython-input-12-2271d0f2b0ba> in <module>() ----> 1 skimage.measure.points_in_poly(np.array([0,0]),cont2) /usr/local/lib/python2.7/dist-packages/scikit_image-0.11dev-py2.7-linux-x86_64.egg/skimage/measure/_pnpoly.so in skimage.measure._pnpoly.points_in_poly (skimage/measure/_pnpoly.c:2397)() IndexError: invalid index