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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 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: gis:load-coordinate-system
GIS Extension Dictionary
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gis:load-coordinate-system

gis:load-coordinate-system file

Loads a new global projection used for projecting or re- projecting GIS data as it is loaded from a file. The file must contain a valid Well-Known Text (WKT) projection description.

WKT projection files are frequently distributed alongside GIS data files, and usually have a “.prj” filename extension.

Relative paths are resolved relative to the location of the current model, or the user’s home directory if the current model hasn’t been saved yet.

The GIS extension does not support all WKT coordinate systems and projections. Only geographic ("GEOGCS") and projected ("PROJCS") coordinate systems are supported. For projected coordinate systems, only the following projections are supported:

  • Albers_Conic_Equal_Area
  • Lambert_Conformal_Conic_2SP
  • Polyconic
  • Lambert_Azimuthal_Equal_Area
  • Mercator_1SP
  • Robinson
  • Azimuthal_Equidistant
  • Miller
  • Stereographic
  • Cylindrical_Equal_Area
  • Oblique_Mercator
  • Transverse_Mercator
  • Equidistant_Conic
  • hotine_oblique_mercator
  • Gnomonic
  • Orthographic

See remotesensing.org for a complete list of WKT projections and their parameters.

Take me to the full GIS Extension Dictionary.

GIS Extension Dictionary: link-dataset

Documentation for the link-dataset primitive.

GIS Extension Dictionary: load-dataset

Documentation for the load-dataset 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 © 1999-2025 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 netlogo-commercial-admin@ccl.northwestern.edu .

For more information, visit the NetLogo website .