simplify.py | A port of simplify.js

The problem is this integral:

The issue is that if you run it like this: docker run --rm -it -v ${PWD}:/usr/src/newsqa --name newsqa maluuba/newsqa python maluuba/newsqa/data_generator.py

bash never enters the picture, therefore the correct version of the Python environment is never chosen (in fact, only Python will be running, no shell at all).

An easy fix is to invoke it like this: docker run --rm -it -v ${PWD}:/usr/src/newsqa --name newsqa newsqa /bin/bash --login -c "python maluuba/newsqa/data_generator.py"

which will execute it via bash with the --login option will also source the necessary environment.

You projected the graph to meters to clean the intersections with a sensible tolerance parameter. Now you just need to project the cleaned intersection centroids back to lat-long:

Many of SymPy's routines struggle to handle floating point numbers, especially in exponents. Use rational numbers whenever possible. More discussion in common gotchas and pitfalls.