Free perspective software for linux

Apache XML Projects goals are:
- to provide commercial-quality standards-based XML solutions that are developed in an open and cooperative fashion,
- to provide feedback to standards bodies (such as IETF and W3C) from an implementation perspective, and
- to be a focus for XML-related activities within Apache projects
The Apache XML Project used to be the home for many XML-related subprojects, many of which have moved to top-level project status recently or are currently in migration. The Apache XML Project slowly transforms into an place where you can find pointers to XML-related projects here in the Apache Software Foundation. The remaining subprojects directly under the supervision of the XML PMC are:
- AxKit - XML-based web publishing, in mod_perl
- Crimson - A Java XML parser derived from the Sun Project X Parser.
- Xang - Rapid development of dynamic server pages, in JavaScript
- Xindice - A native XML database.
- XML Commons - focussed on common code and guidelines for XML projects
- XML Security - Java and C++ implementations of the XML signature and encryption standards

BeastieWorker is a 3D game. Its based on the classic sokoban game, but in 3D perspective. BeastieWorker has low system resource requirements and can work even on slow machines.

pytimeago is a human-oriented representation of time deltas, a Python library.

First, I shall define what time delta is. Since Δ generally means “difference”, we take time delta to stand for difference between two events in time. Quite common, however, is to have the current time for the second event. In pytimeago we deal with time deltas from such a perspective.

Quite possibly, you can make use of this library if your application displays some dynamically generated items to the user, and you are looking for a good way to present information on how long ago specific item was created/processed/whatever.

Below is small code snippet demonstrating how simple it is to embed pytimeago:

from pytimeago.english import english
from time import time, sleep

message = queue.getNextMessage()
delta = time() - message.arrived_time
print "Message arrived %s" % english(delta)

Prints, e.g.
Message arrived 15mins ago

As you see, pytimeago is package, and has individual modules for every language supported. As of 2006-08-13 the only supported language is English. However, you can take a look at rather trivial implementation of English engine, write one for your language, and send it to to me (email at the bottom of page).

Every language should come with a set of doctests (I prefer them to casual unit tests), just like the English version does. Dont be too verbose, but check essential cases.

Le Petit Poucet is free software to display and edit GPS routes and tracks in a 3D scene. The aim of Le Petit Poucet is to build the scene around the GPS data and 2D maps or 3D terrain models.
Apart from being techies, we are outdoor sport lovers and want to prepare our outings and show them to our friends and families. We hope you will find Le Petit Poucet useful. The objective statement being laid, here is the reality and roadmap.
Current version is a pre-alpha version numbered 0.0.2, it is dedicated to David Thompson a great explorer of western Canada. He is been surveying the wild land for 28 years and he is the first person to complete a survey of the Columbia River.
Le Petit Poucet is now able to read a lot of GPS file formats and to connect to the GPS receivers thanks to GPSBabel. It is also able to mix coordinate systems in projected or earth centric referentials.
Currently. Le Petit Poucet is called from the terminal, see command line manual or type the -h or --help option to get the command line usage. We hope to provide quickly a graphical user interface. The program has been compiled and run on Linux (Intel) and Mac Os X (v 10.3), it should work on many other platforms as the core libraries (Open Scene Graph, GPSBabel and GDAL) are portable.
Main features:
Main features
- Loading of tracks or routes, independent waypoints and maps or terrain models and display them on a 3D scene.
- Support of many GPS data file formats through GPSBabel or custom parsers.
- Download GPS receiver data via Serial or USB port.
- 3D navigation based on continuous zoom, swivel and pan with excellent real time anti-aliasing.
- Mixing of several coordinate systems (e.g.: geocentric and projected, UTM and Lambert).
- Coordinate system selection from command line.
Tracks
- Tracks are shown as a set of track segments. Track segments are sets of waypoints connected with a line.
- Track segments are not connected but share the same color and input coordinate system.
- Multiple tracks are shown in a viewer, track color is automatically chosen to visually distinguish tracks.
Waypoints
- Waypoints are displayed as a 3D symbol plus a text in case of named waypoint.
- Name text is automatically oriented toward screen and font size is adjusted dynamically too.
- Text color is selected from command line
- Waypoint information (location, elevation and time) is displayed in a head up display (HUD) when mouse flies over the point.
- Waypoint symbol is loaded from file
- Feature points, i.e. point out of a track, are selected. Are shown only the ones that are in the area of the displayed maps and tracks.
Maps
- 2D Maps are displayed in 3D perspective with box subtrat.PC
- Map loading is currently only supported for the Carte Sur Table file format.
- Map elevation in the 3D scene is computed based on the minimum elevation of the loaded tracks to reduce perspective effects.
- For tracks without maps a box is displayed below the track to improve perspective.
- In the current version, loading of 3D terrain model is through Open Scene Graph (OSG). Models must be projected and optimized using OSG utilities like osgdem see Loading Blue Marble.
Enhancements:
- All the features of release 0.0.5 are now accessible from menus and dialog boxes.
- A graphical user interface is used to wrap the main functionality of the track viewer in 3D, such as opening and closing files; focusing and zooming on tracks, waypoints, or segments; and generating terrains from downloaded or local imagery.

python-observable library lets Python developers build loosely coupled object meshes with a complete Observer/Observable implementation.

In software development literature, Observer/Observable is a software
pattern. From an Observer/Observable perspective, there are two kinds
of objects:

- objects which experience events or state changes (Observables)
- objects which need to know about other objects events (Observers)

If you have any experience with event-based programming, such as with
toolkits like GTK+ or Qt, youll be familiar with the Observer/Observable
pattern. Observer objects register themselves with the Observable object
of their interest, and when Observables experience events, these events
are relayed to the Observers.

Observer/Observable lets software developers build loosely coupled object meshes. What this means to you: your software will be more stable and easier to refactor.

This module has a complete Observer/Observable implementation. To take advantage of this module, all you have to do is:

- Make your Observable classes inherit from Observable (dont forget to call Observable.__init__(self) in the constructor)
- Make your Observer classes inherit from Observer (dont forget to call Observer.__init__(self) in the constructor)
- At runtime, for each object you want to observe, call self.observe(observable_object) in a method of your Observer object.
- In your Observable object, every time an event happens, call:
...
self.broadcastEvent("MyEventName",argument1,argument2...)
...
- In your Observer object, implement a method named: def processEvent(self,notifierObject,eventName,*args): which will receive the notifier object, an event name, and a variable number of arguments, every time broadcastEvent is called in any of the Observable objects that have been observed()

Thats it. Keep in mind that processEvent() will be invoked in the same thread context as the code which called broadcastEvent() in the Observable object. Thus, processEvent() methods should return quickly and never do blocking operations (suggested technique for coping with blocking operations: run them in a separate thread, which sleeps until a flag is raised, and raise the flag in the processEvent() method as appropriate).

Genecys is a 3D multiplayer online RPG. It is designed to be a purely dynamic, large open environment for players to explore and play out a life however they wish.

The environment will evolve through interactions between the NPC AI, and the players over time. The primary goal of the game is to provide an open-ended play experience for all involved, with no set goals or jobs that must be completed.

If the player wishes to be a simple farmer, he should be free to do so. The game is a third-person perspective 3D game written in C. The Genecys MMORPG is released under an open source GNU/GPL license.

Cyanide project is a client for Cyanide, a graphical virtual reality multiplayer role-playing game.

Cyanide is intended to be the most dynamic multi-player online role-playing game ever made.

This client uses an isometric perspective to present scenes. It is programmed with Python, pygame (SDL), and OpenGL.

Full 3D movement is possible, and the servers code can be exchanged online.

RTL-check is a framework for static analysis of programs from a safety and security perspective.
RTL-check project performs analysis on RTL, which is the low-level intermediate representation generated by GCC.
Enhancements:
- The performance of the analysis was improved, and a minor bug was fixed.