PROJ/man/man3/geodesic.3, branch 4.9.2

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

2015-08-16T19:05:36+00:00

  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).

Update to version 1.43 of the geodesic routines. This fixes two

2015-05-20T21:44:23+00:00

relatively obscure problems.  (1) The business of returning an unrolled
longitude with the solution to the direct problem was broken for
west-going geodesics.  (2) For flattening > 1/100, a slight inaccurate
result was returned for a12 in the direct calculation.


git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@2656 4e78687f-474d-0410-85f9-8d5e500ac6b2

Fix NaN handling by geod_inverse and incorrect area computation by geod_polygon_addedge if the longitude extent of the added edge exceeds 180 degrees (patch by Charles Karney, #251, #253)

2015-02-09T09:01:31+00:00

git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@2600 4e78687f-474d-0410-85f9-8d5e500ac6b2

allow polygon vertices to be specified incrementally for geodesic area (#221).

2013-07-12T21:04:00+00:00

git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@2377 4e78687f-474d-0410-85f9-8d5e500ac6b2

Added missing geodesic.3

2013-05-16T06:22:25+00:00

git-svn-id: http://svn.osgeo.org/metacrs/proj/trunk@2335 4e78687f-474d-0410-85f9-8d5e500ac6b2