NS3 GUI

NetAnim:

• NetAnim is a stand-alone program which uses the custom trace files generated by the animation interface to graphically display the simulation. NetAnim is based on the multi-platformQt4 GUI toolkit
• The NetAnim GUI provides play, pause, and record buttons. Play and pause start and stop the simulation.
• The record button starts a series of screenshots of the animator, which are written to the directory in which the trace file was run.
• Two slider bars also exist.
• The top slider provides a “seek” functionality, which allows a user to skip to any moment in the simulation.
• The bottom slider changes the granularity of the time step for the animation. Finally, there is a quit button to stop the simulation and quit the animator.

PyViz method

• PyViz uses Gtk+ and GooCanvas for the GUI part, and also accesses the ns-3 API directly, all via respective Python bindings.
• LTE devices do not support visualizer yet.
• The Visualizer class is a singleton that controls the whole visualizer GUI.
• It contains a list of nodes and channels, the canvas (goocanvas.Canvas), a list of arrows used to represent the packet transmissions, and assorted GUI elements, like the play/pause button