gled

New classes and/or Gled extensions can be added into the Gled system by loading of shared libraries, called libsets. Basic facilities and server/client/viewer programs are implemented in the GledCore libset. The gled-base distribution also contains Geom1, Numerica, GTS, Audio1, RootGeo and Var1.

LibID = 1;
Libset_Name = "GledCore";
Libset_Deps = [];
External_Deps = [ "ROOT", "fltk", "fltk-mt" ];

status: functional

The basic elements are working. Development focused on new functionality.

development priority: high

Core functionality extensions, user authentication & access control, GUI & rendering enhancements.

GledCore libset contains the actual implementation of the Gled system and provides facilities for dynamic loading of other libsets:

• basic environment of the Gled system ( management of libset and class catalogs, dynamic loading of libraries (namespaces GledNS and GledViewNS), API for access to basic elements of the system (Gled and GledGUI classes) )
• server/proxy/client class Saturn
• base classes of the Gled system (ZGlass, ZList, ZHashList, ZNode, ZNodeLink)
• base classes for representing computing/viewing node hierarchy (SaturnInfo, EyeInfo) and object space management (ZKing, ZQueen, ZSunQueen)
• classes for authentication & authorization; identities ( ZIdentity, ZGroupIdentity), MIR emitting entity base (ZMirEmittingEntity) and MIR filters (ZMirFilter, ZFilterAggregator, ZIdentityFilter, ZIdentityListFilter, ZMEESelfFilter, ZMethodTagPreFilter)
• base classes for user-space thread support (Operator, Eventor)
• base classes for 3D scene representation (Scene, Camera, Lamp, GlobalLamps, LampLink)
• the most elementary geometric shapes (Sphere, Box, Text, ScreenText)
• GL state control glasses (ZGlStateBase, ZGlBlending, ZGlLightModel, ZGlMaterial
• executables for running server/proxy/client applications and viewers (gled, saturn)
• GUI classes
• OpenGL rendering support and, of course, renderers for all relevant glasses

LibID = 2;
Libset_Name = "Geom1";
Libset_Deps = [ "GledCore" ];
External_Deps = [ "DevIL" ];

status: functional demo

Demonstrates abilities of rendering infrastructure. Offers a very limited set of elements.

development priority: medium

Extension with new shapes / operators. Requires work on basic scene rendering infrastructure.

Geom1 provides some basic geometric shapes and animation operators:

• image glass ZImage (DevIL driven, supports loading of all popular image formats); used for texturing
• a rectangular grid Rect
• some actual geometric elements: SMorph (a generic textured sphere representation), Board (a textured rectangle), RectTerrain (terrain on a rectangular grid; useful for presentation of any z = f(x,y) function)
• two animation operators: Mover (translates and/or rotates an object in its local coordinate frame) and Sleeper (delays execution of thread for a given period of time)
• weaver symbol representation glasses WSSeed and WSPoint (produces axially symmetric tubes)
• color gradient glass ZRibbon; supports import of POV-Ray gradients as exported by gimp

LibID = 3;
Libset_Name = "Numerica";
Libset_Deps = [ "GledCore" ];
External_Deps = [];

status: functional demo

Demonstrates Gled's ability to incorporate numerical algorithms and spawn centrally controlled computations across a computing cluster.

development priority: low

Consolidation of file access and data storage/transfer protocols in core libset is needed for proper implementation of numerical algorithms.

Numerica provides implementations of two numeric algorithms and demonstration classes:

• Glass ODECrawler provides an algorithm for solving of ordinary differential equations with external class providing initial conditions and derivatives ( Moonraker is an example of such driver: implements shooting of a shell from Earth in the Earth-Moon system).
• The WarmAmoeba glass implements simplex minimization algorithm crossed with simulated annealing method. External class has to provide initial state and ``energy'' evaluation function. Spheror is a simple example of such class (minimization of energy for N equal charges bound to a surface of a sphere). MultiSpheror is a driver class to spawn several Spherors and run minimization threads on a Gled cluster.

LibID = 4;
Libset_Name = "Audio1";
Libset_Deps = [ "GledCore" ];
External_Deps = [ "OpenAL" ];

status: prototype

Minimal wrapper over OpenAl library: context, source and listener objects are interfaced. Buffer management is not done.

development priority: low

LibID = 16;
Libset_Name = "GTS";
Libset_Deps = [ "GledCore" ];
External_Deps = [ "gts" ];

status: minimal implementation

GTS is a minimal wrapper over the GTS -- GNU Triangulated Surface Library. The GTSurf glass is gled's representation of a gts surface, supporting loading of gts files and rendering of surfaces. Surfaces can be generated from explicit equations specifying an iso-surface (glass GTSIsoMaker).

development priority: low

LibID = 17;
Libset_Name = "EHS";
Libset_Deps = [ "GledCore" ];
External_Deps = [ "EHS" ];

status: protoype

Minimal wrapper over Embedded HTTP Server library.

development priority: low

LibID = 33;
Libset_Name = "Var1";
Libset_Deps = [ "GledCore", "Geom1", "GTS", "Numerica", "Audio1" ];
External_Deps = [ ];

status: tech demo

Classes for implementation of terrain and space-based multi-player real-time strategy games.

development priority: high

Used by the Greed project.

LibID = 64;
Libset_Name = "RootGeo";
Libset_Deps = [ "GledCore" ];
External_Deps = [ ];

status: done

Further extensions possible.

development priority: /

RootGeo provides interface to new ROOT's geometry package (classes TGeo...). It supports browsing and viewing of geometrical volume hierarchy and provides an interface to check for volume overlaps and visualize them.