Package toxi.sim.erosion

Class TalusAngleErosion

java.lang.Object
toxi.sim.erosion.ErosionFunction
toxi.sim.erosion.TalusAngleErosion
public class TalusAngleErosion extends ErosionFunction
For each neighbour it's computed the difference between the processed cell and the neighbour: 
 d[i] = h - h[i];
the maximum positive difference is stored in d_max, and the sum of all the positive differences that are bigger than T (this numer is n), the talus angle, is stored in d_tot. Now it's possible to update all the n cells (where d[i] is bigger than T) using this formula: 
 h[i] = h[i] + c * (d_max - T) * (d[i] / d_tot);
and the main cell with this other formula: 
 h = h - (d_max - (n * d_max * T / d_tot));
The Talus angle T is a threshold that determines which slopes are affected by the erosion, instead the c constant determines how much material is eroded.

  • Constructor Details

    • TalusAngleErosion

      public TalusAngleErosion(float theta, float amount)
      Parameters:
      theta - talus angle
      amount - material transport amount

  • Method Details

    • erodeAt

      public void erodeAt(int x, int y)
      Specified by:
      erodeAt in class ErosionFunction

    • getAmount

      public float getAmount()
      Returns:
      the amount

    • getTheta

      public float getTheta()
      Returns:
      the theta

    • setAmount

      public void setAmount(float amount)
      Parameters:
      amount - the amount to set

    • setTheta

      public void setTheta(float theta)
      Parameters:
      theta - the theta to set

    • toString

      public String toString()
      Overrides:
      toString in class Object