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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:sampling-method-of
GIS Extension Dictionary
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gis:sampling-method-of

gis:sampling-method-of raster-dataset

Reports the sampling method used to compute the value of the given raster dataset at a single point, or over an area smaller than a single raster cell. Sampling is performed by the GIS extension primitives raster-sample, resample, convolve, and apply-raster. The sampling method will be one of the following:

  • "NEAREST_NEIGHBOR": the value of the cell nearest the sampling location is used.
  • "BILINEAR": the value of the four nearest cells are sampled by linear weighting, according to their proximity to the sampling site.
  • "BICUBIC": the value of the sixteen nearest cells are sampled, and their values are combined by weight according to a piecewise cubic polynomial recommended by Rifman (see Digital Image Warping, George Wolberg, 1990, pp 129-131, IEEE Computer Society Press).
  • "BICUBIC_2": the value is sampled using the same procedure and the same polynomial as with BICUBIC above, but using a different coefficient. This method may produce somewhat sharper results than BICUBIC, but that result is data dependent.

For more information on these sampling methods and on raster sampling in general, see this wikipedia article.

Take me to the full GIS Extension Dictionary.

GIS Extension Dictionary: resample

Documentation for the resample primitive.

GIS Extension Dictionary: set-coordinate-system

Documentation for the set-coordinate-system 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 .