title: Netlogo - Controlling specific sets of turtles
body: <p>I am trying to develop a model to demonstrate a field principle I am trying to work with. I am having trouble finding information on how to control specific groups of turtles. Essentially I would like to make a grid of turtles and links that I can distort, relative to an objective coordinate grid, based upon the placement of a different type of turtle, like a particle interacting with a field?</p>
  
  <p>Any suggestions would be greatly appreciated. Is it possible to write a command that only talks to specific turtles by their who value? for instance if i had a coordinate plane that went from -3,3 in both x and y, rendering 49 vertices, could I set up those first 49 turtles, and then spawn my particle turtles (lets say 3), which would be who 49,50, and 51. could I write a command specifically for those 3 turtles based upon their relations to the first 49 turtles?</p>
  
  <p>I hope this question makes sense.</p>