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Read and write to shape files

The current implementation of circumscribing circle produces circles that are bigger than they need to be. Implementing a solution to the smallest circle problem would optimize this.
https://en.wikipedia.org/wiki/Smallest-circle_problem

The to_shapefile method should accept a path (which will write a shapefile instead of individual files) or zipfile object instead of the current parameters

Use units meters-squared seconds, with seconds maintaining nanosecond precision

Test if a given shape fully contains another shape (accounting for holes). Probably should use shapely to accomplish

The mgrs package appears to return an incorrect coordinate if the MGRS string contains spaces

GeoPolygon.to_wkt() and GeoShape.to_wkt() are almost the same. The only functional difference is that GeoShape correctly uses ", " to delimit between the outline and the holes and GeoPolygon incorrectly uses "," alone. Should we just delete GeoPolygon.to_wkt()?

https://pypi.org/project/spatialite/

The GeoJSON spec mandates the right hand rule: A linear ring MUST follow the right-hand rule with respect to the area it bounds, i.e., exterior rings are counterclockwise, and holes are clockwise.

Calculations need to adjust vertices crossing the antimeridian problem

Not to jump to the solution, but allowing the geoshape to have a dictionary of attributes that get passed to whatever rendering engine is used would be an easy way to take care of this.

Add support for multipolygons, multilinestrings, and multipoints.
Ensure support is implemented for all i/o methods

Support the ability to hash coordinate objects in a feature collection

Add a method buffer_dt to geoshape that will add/subtract a timdelta to the end/start of the timeinterval

Contains coordinate is not always taking holes into account

The coordinate and shapes notebook as well as the coordinates.py file docstring mentions the precisenumbers package but it is not a dependency. This may be left over from old code

Add tests to ensure that the first coord of all linear rings is equal to the last

Store the returned value of to_shapely as a private instance variable to avoid recomputing