Drop in the latest geodesic library from GeographicLib (version 1.44).

  http://geographiclib.sourceforge.net/1.44/C/index.html

The changes are:

  - Improve accuracy of calculations by evaluating trigonometric
    functions more carefully and replacing the series for the reduced
    length with one with a smaller truncation error.

  - The allowed ranges for longitudes and azimuths is now unlimited; it
    used to be [-540d, 540d).

  - Enforce the restriction of latitude to [-90d, 90d] by returning NaNs
    if the latitude is outside this range.

  - The inverse calculation sets s12 to zero for coincident points at
    pole (instead of returning a tiny quantity).

This commit also includes a work-around for an inaccurate value for
pi/180 in dmstor.c (see the definitions of DEG_IN and DEG_OUT in
geod_interface.c).

1 files changed, 3 insertions, 3 deletions

diff --git a/man/man3/geodesic.3 b/man/man3/geodesic.3
index ece2d4d9..bf0d764d 100644
--- a/man/man3/geodesic.3
+++ b/man/man3/geodesic.3
@@ -38,7 +38,7 @@ measure angles (latitudes, longitudes, and azimuths) in degrees, unlike
 the rest of the \fBproj\fR library, which uses radians.  The
 documentation for this library is included in geodesic.h.  A formatted
 version of the documentation is available at
-http://geographiclib.sf.net/1.43/C
+http://geographiclib.sf.net/1.44/C
 .SH EXAMPLE
 The following program reads in lines with the coordinates for two points
 in decimal degrees (\fIlat1\fR, \fIlon1\fR, \fIlat2\fR, \fIlon2\fR) and
@@ -72,7 +72,7 @@ libproj.a \- library of projections and support procedures
 .SH SEE ALSO
 Full online documentation for \fBgeodesic(3)\fR,
 .br
-http://geographiclib.sf.net/1.43/C
+http://geographiclib.sf.net/1.44/C
 .PP
 .B geod(1)
 .PP
@@ -94,4 +94,4 @@ The \fIonline geodesic bibliography\fR,
 .br
 http://geographiclib.sf.net/geodesic-papers/biblio.html
 .SH HOME PAGE
-http://proj.osgeo.org
+https://github.com/OSGeo/proj.4/wiki