viroconwebcontour.plot_generic module

Generic plotting methods.

contour.plot_generic.alpha_shape(points, alpha)

Computes the alpha shape (concave hull) of a set of points

Parameters:

• points (MultiPoint,) – Iterable container of points.
• alpha (float,) – Alpha value to influence the gooeyness of the border. Smaller numbers don’t fall inward as much as larger numbers. Too large and you lose everything!

contour.plot_generic.convert_ndarray_list_to_multipoint(ndarray_list)

Converts an array list to a MultiPoint, which is required by alpha_shape

Parameters:ndarray_list (list of ndarray,) – A list of data points. # TODO: Type “list of ndarray” is inconsistent with the documentation of plot.plot_contour which claims it is a list of float. Check that. Returns:points – The data points as an MultiPoint object such that the method alpha_shape can work with it. Return type:MultiPoint,