Coithienthai Truyen Nguoi Lon

LON-CAPA is an Open Source Freeware Distributed Learning Content Management and Assessment System. LON-CAPA is a full-featured, web-based course management system similar to commercial systems, see edutools.info for comparisons.. The LearningOnline Network with CAPA is an open source...



Platforms: Linux

Geo::Inverse is a Perl module to calculate geographic distance from a lat & lon pair. SYNOPSIS use Geo::Inverse; my $obj = Geo::Inverse->new(); # default "WGS84" my ($lat1,$lon1,$lat2,$lon2)=(38.87, -77.05, 38.95, -77.23); my ($faz, $baz, $dist)=$obj->inverse($lat1,$lon1,$lat2,$lon2);...





Platforms: Linux

GPS::SpaceTrack is a package for calculating the position of GPS satellites. SYNOPSIS use GPS::SpaceTrack; my $obj=GPS::SpaceTrack->new(filename=>"gps.tle"); print join("t", qw{Count PRN ELEV Azim SNR USED}), "n"; foreach ($obj->getsatellitelist({lat=>38.870997, lon=>-77.05596})) { print...


Platforms: Linux

A revitalization of the famous Quake mod released under GPL by Lon Hohberger (http://lon.110mb.com/). This code was initially forked from Meta5 and intends to keep the same version numbering scheme.


Platforms: Windows, Mac, Linux

Private NetcastingO from EnjoyMyMedia is a free personal broadcasting system that is the safest, simplest way to share your life and stay regularly connected to friends and family. Private Netcasting continuously broadcasts personal multimedia--photos, videos, audios, docs, any file--over the Net...


Platforms: Windows 2000, Windows XP, Windows 2003

Geo::Lookup::ByTime is a Perl module to lookup location by time. SYNOPSIS use Geo::Lookup::ByTime; $lookup = Geo::Lookup::ByTime->new( @points ); my $pt = $lookup->nearest( $tm ); Given a set of timestamped locations guess the location at a particular time. This is a useful operation...


Platforms: Linux

GIS::Distance::Polar can do Polar coordinate flat-earth distance calculations. SYNOPSIS my $calc = GIS::Distance::Polar->new(); my $distance = $calc->distance( $lon1, $lat1 => $lon2, $lat2 ); Supposedly this is a formula to better calculate distances at the poles. While implimented, this...


Platforms: Linux

Geo::Distance is a Perl module that can calculate distances and closest locations. SYNOPSIS use Geo::Distance; my $geo = new Geo::Distance; $geo->formula(hsin); $geo->reg_unit( toad_hop, 200120 ); $geo->reg_unit( frog_hop => 6 => toad_hop ); my $distance = $geo->distance( unit_type,...


Platforms: Linux

Spotter is a program that lets students check their answers to math and science questions. It handles symbolic as well as numerical answers. Spotter application is free and open source. I got the idea for Spotter from LON-CAPA, which is also free and open-source. The programs are alike in...


Platforms: Linux

Growler is a C++-based distributed object and event architecture. It is written in C++, and supports serialization of C++ objects as part of its Remote Method Invocation, Event Channels, and in its Interface Definition Language. Its primary application has been in support of interactive,...


Platforms: Linux

PDL::Transform::Cartography Perl module contains useful cartographic projections. SYNOPSIS # make a Mercator map of Earth use PDL::Transform::Cartography; $a = earth_coast(); $a = graticule(10,2)->glue(1,$a); $t = t_mercator; $w = pgwin(xs); $w->lines($t->apply($a)->clean_lines());...


Platforms: Linux

Geo::Spline is a Perl module to calculate geographic locations between GPS fixes. SYNOPSIS use Geo::Spline; my $p0={time=>1160449100.67, #seconds lat=>39.197807, #degrees lon=>-77.263510, #degrees speed=>31.124, #m/s heading=>144.8300}; #degrees clockwise from North my...


Platforms: Linux

Geo::ECEF is a Perl module that converts between ECEF (earth centered earth fixed) coordinates and latitude, longitude and height above ellipsoid. SYNOPSIS use Geo::ECEF; my $obj=Geo::ECEF->new(); #WGS84 is the default my ($x, $y, $z)=$obj->ecef(39.197807, -77.108574, 55); #Lat (deg), Lon...


Platforms: Linux

Net::GPSD is a Perl module that provides an object client interface to the gpsd server daemon. SYNOPSIS use Net::GPSD; $obj=Net::GPSD->new; my $point=$obj->get; print $point->latlon. "n"; or use Net::GPSD; $obj=Net::GPSD->new; $obj->subscribe(); Net::GPSD provides an object client...


Platforms: Linux

Geo::Coordinates::VandH is a Perl module that can convert and manipulate telco V and H coordinates. SYNOPSIS To convert V: 5498 H: 2895 to lat/long coordinates: use Geo::Coordinates::VandH; $blah=new Geo::Coordinates::VandH; ($lat,$lon) = $blah->vh2ll(5498,2895); printf...


Platforms: Linux

MapCal is a mapping event calendar. It has the ability to add/modify/delete events and show them on a list like other event calendars. The difference with MapCal is that it also shows your events on an embeded Google Map. This works great for things like a motorcycle club, or a craft show...


Platforms: Windows, Macintosh, *nix, Mac OSX, Linux, PHP, BSD Solaris

Geo::Coordinates::OSGB is a Perl module that can convert coordinates from Lat/Long to UK Grid. A UK-specific implementation of co-ordinate conversion, following formulae from the Ordnance Survey of Great Britain (hence the name). SYNOPSIS use Geo::Coordinates::OSGB qw(ll2grid grid2ll); #...


Platforms: Linux

Panoply is a Java application which plots latitude-longitude, latitude-vertical or time-latitude gridded data contained in netCDF datasets.Features include:Slice specific 2D arrays from multidimensional variables which have more than two dimensions.Combine two arrays in one plot by differencing,...


Platforms: Macintosh

MacNavAid is a simple program to either calculate the heading and distance between two lat/lon coordinates, or a find a lat/lon on a given heading and distance from another lat/lon coordinate.


Platforms: Macintosh

G.Projector is a Java application which can transform an input GIF, JPG or PNG equirectangular map image to any of 70-plus global map projections. Lon-lat gridlines and continental outlines may be drawn, and resulting map images may be saved to disk in GIF, PDF, PNG or PS form.


Platforms: Macintosh