pandas.DataFrame.pos.reduced_point_index

DataFrame.pos.reduced_point_index(**kwargs)[source]

Eliminates gps points that are too close together.

No matter how far apart the points, always returns the start and end points.

Originally developed in my mapmatching package; an old version still exists there.

Parameters

  • **lat (scalar) – column label in the record DataFrame containing latitude values along the path. If a label is not provided, the parameter name itself is used.

  • **lon (scalar) – column label in the record DataFrame containing longitude values along the path. If a label is not provided, the parameter name itself is used.

  • **min_dist (float) – The minimum distance (meters) between the resulting downsampled GPS coordinates. Default 15.

Returns

A boolean array that can be used to subsample a pandas.Series corresponding to this GPS trace, based on this minimum distance scheme.

Return type

list