NetLogo 3.1.3 User Manual NetLogo 3.1.3 User Manual Table of Contents What is NetLogo?..............................................................................................................................1 Features...................................................................................................................................1 Copyright Information.......................................................................................................................3 Third party licenses..................................................................................................................3 What's New?.......................................................................................................................................7 Version 3.1.3 (September 20, 2006)........................................................................................7 Version 3.1.2 (August 9, 2006)................................................................................................7 Version 3.1.1 (June 16, 2006)..................................................................................................7 Version 3.1 (April 14, 2006).....................................................................................................8 Version 3.0 (September 2005)...............................................................................................10 Version 2.1 (December 2004)................................................................................................10 Version 2.0.2 (August 2004)..................................................................................................11 Version 2.0 (December 2003)................................................................................................11 Version 1.3 (June 2003).........................................................................................................11 Version 1.2 (March 2003)......................................................................................................11 Version 1.1 (July 2002)..........................................................................................................11 Version 1.0 (April 2002).........................................................................................................12 System Requirements.....................................................................................................................13 System Requirements: Application........................................................................................13 Windows...........................................................................................................................13 Mac OS X.........................................................................................................................13 Mac OS 8 and 9...............................................................................................................13 Other platforms................................................................................................................13 System Requirements: Saved Applets..................................................................................14 System Requirements: 3D View............................................................................................14 Operating Systems...........................................................................................................14 Graphics Cards................................................................................................................14 Fullscreen mode...............................................................................................................15 Library Conflicts...............................................................................................................15 Removing an old JOGL....................................................................................................15 Known Issues...................................................................................................................................17 Known bugs (all systems)......................................................................................................17 Windows−only bugs...............................................................................................................17 Macintosh−only bugs.............................................................................................................17 Linux/UNIX−only bugs...........................................................................................................18 Known issues with computer HubNet....................................................................................18 Unimplemented StarLogoT primitives....................................................................................18 Contacting Us..................................................................................................................................21 Web Site................................................................................................................................21 Feedback, Questions, Etc......................................................................................................21 Reporting Bugs......................................................................................................................21 i NetLogo 3.1.3 User Manual Table of Contents Sample Model: Party.......................................................................................................................23 At a Party...............................................................................................................................23 Challenge...............................................................................................................................25 Thinking With Models.............................................................................................................26 What's Next?..........................................................................................................................26 Tutorial #1: Models..........................................................................................................................27 Sample Model: Wolf Sheep Predation...................................................................................27 Controlling the Model: Buttons...............................................................................................28 Adjusting Settings: Sliders and Switches...............................................................................29 Gathering Information: Plots and Monitors............................................................................31 Plots.................................................................................................................................31 Monitors...........................................................................................................................31 Controlling the View...............................................................................................................31 The Models Library................................................................................................................35 Sample Models................................................................................................................36 Curricular Models.............................................................................................................36 Code Examples................................................................................................................36 HubNet Calculator & Computer Activities........................................................................36 What's Next?..........................................................................................................................36 Tutorial #2: Commands...................................................................................................................37 Sample Model: Traffic Basic..................................................................................................37 The Command Center...........................................................................................................37 Working With Colors..............................................................................................................40 Agent Monitors and Agent Commanders...............................................................................42 What's Next?..........................................................................................................................45 Tutorial #3: Procedures..................................................................................................................47 Agents and procedures.........................................................................................................47 Making the setup button........................................................................................................47 Making the go button............................................................................................................50 Experimenting with commands.............................................................................................51 Patches and variables...........................................................................................................52 Turtle variables.....................................................................................................................53