|
As discussed in this stackoverflow question (https://stackoverflow.com/questions/31964589/geotools-distance-calculation-fails-with-no-convergence-exception-for-several-la) there are sets of points that the current GeoTools Geodisic Calculator fails.
As I discuss in my answer to the question Karny provides what looks like a drop in replacement at http://geographiclib.sourceforge.net/html/java/ with a compatible MIT licence.
The talk page of the [Wikipedia article](https://en.wikipedia.org/wiki/Talk:Geodesics_on_an_ellipsoid#Computations) proposes the following test points.
lat1 lon1 lat2 lon2
0.7 0 -0.3 179.7
2.2 0 -1.8 179.6
2.3 0 -2.0 179.6
2.3 0 -1.8 179.8
2.7 0 -2.5 179.7
7.5 0 -7.1 179.8
10.7 0 -10.2 179.8
11.3 0 -10.8 179.7
14.3 0 -14.0 179.9
16.2 0 -15.9 179.6
16.3 0 -16.1 179.5
17.8 0 -17.5 179.9
18.4 0 -18.1 179.8
21.8 0 -21.6 179.6
25.1 0 -24.7 179.7
27.2 0 -27.1 179.5
29.7 0 -29.5 179.7
31.9 0 -31.8 179.6
42.7 0 -42.6 179.6
43.7 0 -43.4 179.9
45.8 0 -45.7 179.9
54.0 0 -53.8 179.9
|
