Chemotaxis

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This tutorial will guide you through the steps of adding a chemotactic force to the cells in your simulation. Requirements for chemotaxis include a population of agents, and a chemical field of a chemoattractant. The agents will move along the chemical gradient toward the chemoattractant.

In this example, a simple method is used to calculate the chemotactic force on a particle which responds to a chemoattractant , as follows:

  1. Generate a random unit vector , as a potential chemotactic force acting on .
  2. Along vector , sample the chemoattractant in the chemical field, both ahead and behind particle vector , as vector and vector .