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Home
Learn NetLogo
What is NetLogo? Tutorial #0 Sample Model Tutorial #1 Models Tutorial #2 Commands Tutorial #3 Procedures
Documentation
NetLogo Dictionary Interface Guide Interface Tab Guide Info Tab Guide Code Tab Guide Programming Guide Transition Guide Preferences Guide Version History
Advanced Tools
Extension Manager Shapes Editor BehaviorSpace System Dynamics HubNet HubNet Authoring Logging Controlling Mathematica Link NetLogo 3D NetLogoLab Cluster Computing (HPC)
Extensions
Extensions Guide Arduino Array Bitmap CSV GIS GoGo LevelSpace Matrix Networks Palette Profiler Python Resource Rnd Sound Simple R Table Time Vid View2.5D
FAQ
primitive: view2.5d:set-turtle-stem-color
View2.5D Extension Dictionary
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view2.5d:set-turtle-stem-color

view2.5d:set-turtle-stem-color title color-reporter

This command must be called from the Observer context. Updates only the turtle-view window with the specified title (if any). colorReporter is an anonymous reporter that should take a turtle as input, and report some number representing a color from it. Turtles are now drawn with “pins” or “stems” that have the specified color (instead of the grey default).

Example:

;; setup view with 2 turtles
crt 1 [ set color green setxy 2 3]
crt 1 [ set color red setxy 5 4]
view2.5d:turtle-view "Test" turtles [ the-turtle -> [ xcor] of the-turtle ]
view2.5d:set-observer-distance "Test" 40
view2.5d:set-z-scale "Test" 2
view2.5d:set-observer-angles "Test" 25 30

;; increase the stem thickness
view2.5d:set-turtle-stem-thickness "Test" .2

;; change the stem color to match the turtle-color
view2.5d:set-turtle-stem-color "Test" [ the-turtle -> [ color ] of the-turtle ]

; now make the stems orange
view2.5d:set-turtle-stem-color "Test" [ orange ]

Take me to the full View2.5D Extension Dictionary.

View2.5D Extension Dictionary: set-observer-xy-focus

Documentation for the set-observer-xy-focus primitive.

View2.5D Extension Dictionary: set-turtle-stem-thickness

Documentation for the set-turtle-stem-thickness primitive.


NetLogo is a programmable modeling environment for simulating natural and social phenomena. It was authored by Uri Wilensky in 1999 and has been in continuous development ever since at the Center for Connected Learning and Computer-Based Modeling.

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Copyright © 1999-2026 Uri Wilensky and the Center for Connected Learning and Computer-Based Modeling at Northwestern University . All rights reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License , or (at your option) any later version.

Commercial licenses are also available. To inquire about commercial licenses, please contact Uri Wilensky at [email protected] .

For more information, visit the NetLogo website .