Jamaica Observer

This script separates pattern implementation from your code so that you can reuse the implementation elsewhere. It is an example that shows a reusable implementation of the Observer pattern. Platforms: Windows, Mac, *nix, Python, BSD Solaris

superlos will calculate mho and whether a target was observed given a terrain and array of observer&targets lats/lons/altitudes. For a single value call the two have similar performance (1x to 2x faster), asymptotes around 40x faster from what I experienced. Gets rid of your for loops! Platforms: Matlab

sun = sun_position(time, location)This function computes the sun position (zenith and azimuth angle at the observer location) as a function of the observer local time and position.It is an implementation of the algorithm presented by Reda et Andreas in: Reda, I., Andreas, A. (2003) Solar position... Platforms: Matlab

User Queue is a module which is functionally quite similar to Nodequeue. It allows you to create multiple queues, add users to them, and order the users within the queue. Queues can have a maximum number of items, or be unlimited.In addition to the administrative pages for adding, removing, and... Platforms: PHP

The Ejs Celestial Globe model simulates the Two Sphere Universe theory of the Ancient Greeks. This theory supposes the stars to be fixed on the surface of a Celestial Sphere, with the spherical Earth at the center of this sphere. The simulation shows the motion of Sun and stars in this model, as... Platforms: Mac

The Stellar Aberration 3D Model illustrates the phenomenon known as the aberration of starlight, first reported by James Bradley in 1729. Aberration occurs because light has a finite speed, and thus light from a star takes a finite amount of time to travel through the tube of a telescope. During... Platforms: Mac

The GR Seeing program The GR Seeing program simulates the path of light around a black hole using the Schwarzschild metric. It also shows a plot of the proper time and angle the light is observed by a shell observer in order to demonstrate what a shell observer would see when looking at light... Platforms: Mac

This is a Python module :mod:`nmevent`, simple C#-like implementation of the Observer pattern (http://en.wikipedia.org/wiki/Observer_pattern). It's main purpose and goal is to allow developers to use events with C#-like syntax in their Python classes. ============= Usage example =============... Platforms: *nix

A comprehensive astronomy / space / satellite-tracking package. It allows you to view: An earth map, showing day and night regions, location of the Moon and current phase, and position of a selected earth satellite. Panel showing positions of planets and a selected asteroid or comet, both... Platforms: Windows

Watch the best 70 Music Web TV stations on your PC for free. Freeware includes Windows Vista Sidebar Gadget and stand alone client software. Including web tv stations: MTV, SlamTV, PlayTV, TMF Party, TMF Pure, DeluxeMusic TV, E-Music, MTV Brand New, Tunespoon, The Voice, TV Fly, TMF Netherlands,... Platforms: Windows

XLObject is a clone of basic services offered by the Qt object model, redesigned around modern features of the C++ language. Signals and slots are used for communication between objects. There are instances when we want some objects to know the changes of a particular object without having to... Platforms: *nix

OpenInteract2::Config::Initializer is a Perl module for observable configuration initialization events. SYNOPSIS # Add an initializer in your package.conf name mypackage version 1.10 ... config_watcher OpenInteract2::MyInitializerSpops config_watcher OpenInteract2::MyInitializerAction... Platforms: *nix

PunJab is a HTTP jabber client interface. It is a SOAP, XMLRPC, JEP-0025 or JEP-0124 server that allows persistent client connections to a jabber server. PunJab can be used for many things, but its main purpose is to allow for stateless applications (ie web) a stateful connection to jabber.... Platforms: *nix

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: *nix

Perceptual Image Diff is an image comparison utility that makes use of a computational model of the human visual system to compare two images. Its useful for running automated regression testing on images that are perceptually identical but have minor pixel noise from different random number... Platforms: *nix

Gtk2::Ex::MindMapView::Connection is a Perl module to draw connections between view items. HEIRARCHY Glib::Object +----Gtk2::Object +----Gnome2::Canvas::Item +----Gnome2::Canvas::Shape +----Gnome2::Canvas::Bpath +----Gtk2::Ex::MindMapView::Connection SYNOPSIS use... Platforms: *nix

Basset::Container::Hash Perl module implements a layered hash. The easiest way to explain is with an example: my %x = (a => b); tie my %y, Basset::Container::Hash, %x; #<- %x is the parent of y. print $x{a}; #prints b print $y{a}; #prints b (inherited from x) $y{a} = foo; $y{z} = bar;... Platforms: *nix

Time::Warp is a Perl module to control over the flow of time. SYNOPSIS use Time::Warp qw(scale to time); to(time + 5); # 5 seconds ahead scale(2); # make time flow twice normal Our external experience unfolds in 3 1/2 dimensions (time has a dimensionality of 1/2). The Time::Warp module... Platforms: *nix

Controls up to 4 USB or Firewire connected cameras during an eclipse so that you can be free to concentrate on observing the event visually. Actions can be preprogrammed according to a script. Observer position (latitude and longitude coordinates, altitude) is used to calculate local... Platforms: Mac

Wireshark is the world's foremost network protocol analyzer, and is the de facto (and often de jure) standard across many industries and educational institutions. Wireshark development thrives thanks to the contributions of networking experts across the globe. It is the continuation of a... Platforms: Mac