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Diffstat (limited to 'docs/source/geodesic.rst')
| -rw-r--r-- | docs/source/geodesic.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/docs/source/geodesic.rst b/docs/source/geodesic.rst index e2665ab7..0f31802d 100644 --- a/docs/source/geodesic.rst +++ b/docs/source/geodesic.rst @@ -101,7 +101,7 @@ Thaddeus Vincenty's method, April 1975 For a very good procedure to calculate inter point distances see: -http://www.ngs.noaa.gov/PC_PROD/Inv_Fwd/ (Fortan code, DOS executables, and an online app) +http://www.ngs.noaa.gov/PC_PROD/Inv_Fwd/ (Fortran code, DOS executables, and an online app) and algorithm details published in: `Vincenty, T. (1975) <http://www.ngs.noaa.gov/PUBS_LIB/inverse.pdf>`__ @@ -142,7 +142,7 @@ PROJ.4 - geod program The PROJ.4 [wiki:man_geod geod] program can be used for great circle distances -on an ellipsoid. As of proj verion 4.9.0, this uses a translation of +on an ellipsoid. As of proj version 4.9.0, this uses a translation of GeographicLib::Geodesic (see below) into C. The underlying geodesic calculation API is exposed as part of the PROJ.4 library (via the geodesic.h header). Prior to version 4.9.0, the algorithm documented here was used: |