Shape Test Fail

[PatrickSteil]

Hey @patrickbr

When I built the project and ran the tests, the TestShapeMinimizer failed.

~/Documents/gtfstidy$ make test
ok github.com/patrickbr/gtfstidy 0.135s coverage: 0.0% of statements
Minimizing frequencies / stop times... done. (+0 frequencies [+0.00%], +0 trips [+0.00%])
Removing redundant routes... done. (-7 routes [-43.75%])
Removing service duplicates... done. (-2 services [-39.99%])
Remeasuring shapes... done. (3 shapes remeasured)
Removing redundant shapes... done. (-1 shapes [-33.32%])
Remeasuring shapes... done. (3 shapes remeasured)
Minimizing shapes... done. (-6 shape points [-33.33%])
--- FAIL: TestShapeMinimizer (0.00s)
    shapeminimizer_test.go:51: {3.5 1 3 42.902325}
    shapeminimizer_test.go:67: {3.5 1 3 42.902325}
Removing redundant stops... done. (-3 stops [-10.00%])
FAIL
coverage: 33.1% of statements
FAIL github.com/patrickbr/gtfstidy/processors 0.040s
FAIL
make: *** [Makefile:32: test] Error 1

I don't know if it's a rounding error because both differ from the test case only in the Dist_travelled:
42.902325 vs 42.910156 (expected value) and 42.902325 vs 42.910156 (expected value).

Kind regards,
Patrick

[PatrickSteil]

The commit 7c5f215 introduced the Haversine Formula, and replaced the Web Mercator projection. This explains the slightly different distances.

[PatrickSteil]

Fixed in #34 .