**Geo::Ellipsoid - Longitude and latitude calculations using an ellipsoid model.**

Geo::Ellipsoid performs geometrical calculations on the surface of an ellipsoid. An ellipsoid is a three-dimension object formed from the rotation of an ellipse about one of its axes. The approximate shape of the earth is an ellipsoid, so Geo::Ellips...

PJACKLAM/Geo-Ellipsoid-1.14 - 19 Sep 2016 17:54:56 UTC**Geo::ECEF - Converts between ECEF (earth centered earth fixed) coordinates and latitude, longitude and height above ellipsoid.**

Geo::ECEF provides two methods ecef and geodetic. The ecef method calculates the X,Y and Z coordinates in the ECEF (earth centered earth fixed) coordinate system from latitude, longitude and height above the ellipsoid. The geodetic method calculates ...

MRDVT/Geo-ECEF-1.10 - 02 Jan 2010 20:19:51 UTC**Geo::Ellipsoids - Package for standard Geo:: ellipsoid a, b, f and 1/f values.**

MRDVT/Geo-Ellipsoids-0.16 - 28 May 2008 02:17:47 UTC

**Geo::Horizon - Calculate distance to the visual horizon**

A perl object for calculating the distance to the visual horizon on an ellipsoid....

MRDVT/Geo-Horizon-0.02 - 09 Jun 2008 19:11:57 UTC**Geo::Inverse - Calculate geographic distance from a lat & lon pair.**

This module is a pure Perl port of the NGS program in the public domain "inverse" by Robert (Sid) Safford and Stephen J. Frakes....

MRDVT/Geo-Inverse-0.05 - 07 Apr 2007 16:40:26 UTC**Geo::Sun - Calculates the Geodetic Position of the Sun over the Surface of the Earth**

The Geo::Sun package calculates the position of the Sun over the Earth. The user method point_dt takes a DateTime object as a parameter and returns a GPS::Point which is the point on the earth where the Sun is directly over at the given time. The Geo...

MRDVT/Geo-Sun-0.04 - 27 Jul 2008 02:34:21 UTC**Geo::Forward - Calculate geographic location from lat, lon, distance, and heading.**

This module is a pure Perl port of the NGS program in the public domain "forward" by Robert (Sid) Safford and Stephen J. Frakes....

MRDVT/Geo-Forward-0.14 - 12 Jun 2013 02:07:13 UTC**Geo::Spline - Calculate geographic locations between GPS fixes.**

This program was developed to be able to calculate the position between two GPS fixes using a 2-dimensional 3rd order polynomial spline. f(t) = A + B(t-t0) + C(t-t0)^2 + D(t-t0)^3 #position in X and Y f'(t) = B + 2C(t-t0) + 3D(t-t0)^2 #velocity in X ...

MRDVT/Geo-Spline-0.16 - 02 Feb 2007 06:43:38 UTC**Geo::Local::Server - Returns the configured coordinates of the local server**

Reads coordinates from either the user environment variable COORDINATES_WGS84_LON_LAT_HAE or the file /etc/local.coordinates or C:\Windows\local.coordinates....

MRDVT/Geo-Local-Server-0.09 - 13 Jan 2015 05:21:22 UTC**Geo::HelmertTransform**

Perform transformations between geographical coordinates in different datums. It is usual to describe geographical points in terms of their polar coordinates (latitude, longitude and altitude) referenced to a "datum ellipsoid", which is used to appro...

MYSOCIETY/Geo-HelmertTransform-1.14 - 10 Aug 2011 10:00:57 UTC**Geo::Coordinates::UTM - Perl extension for Latitiude Longitude conversions.**

This module will translate latitude longitude coordinates to Universal Transverse Mercator(UTM) coordinates and vice versa. Mercator Projection The Mercator projection was first invented to help mariners. They needed to be able to take a course and k...

GRAHAMC/Geo-Coordinates-UTM-0.11 - 21 May 2013 12:33:16 UTC**Geo::Coordinates::OSGB - Convert coordinates between Lat/Lon and the British National Grid**

These modules convert accurately between OSGB national grid references and coordinates given in latitude and longitude. The default "ellipsoid model" used for the conversions is the *de facto* international standard WGS84. This means that you can tak...

TOBY/Geo-Coordinates-OSGB-2.20 - 02 Nov 2017 11:54:37 UTC**Geo::Coordinates::RDNAP - convert to/from Dutch RDNAP coordinate system**

This module converts between two coordinate systems: RD-NAP and ETRS89. ETRS89 is a geodesic frame of reference used in Europe, which is approximately equal to the international reference frame WGS84. GPS data. Coordinates in ETRS89 are given in degr...

PIJLL/Geo-Coordinates-RDNAP-0.11 - 31 Jul 2007 19:49:11 UTC**Geo::Direction::Distance - Process between Lat-Lng coordinates and direction - distance**

KOKOGIKO/Geo-Direction-Distance-0.0.2 - 30 Aug 2008 18:33:40 UTC

**Geo::WebService::Elevation::USGS - Elevation queries against USGS web services.**

This module executes elevation queries against the United States Geological Survey's web NAD server. You provide the latitude and longitude in degrees, with south latitude and west longitude being negative. The return is typically a hash containing t...

WYANT/Geo-WebService-Elevation-USGS-0.117 - 15 Apr 2020 10:26:47 UTC**Geo::GoogleEarth::Pluggable::Contrib::Point - Geo::GoogleEarth::Pluggable Point Object**

Geo::GoogleEarth::Pluggable::Contrib::Point is a Geo::GoogleEarth::Pluggable::Placemark with a few other methods....

MRDVT/Geo-GoogleEarth-Pluggable-0.15 - 12 Jun 2013 02:08:44 UTC