YetAnotherCoupler 3.1.1
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Radial basis function interpolation

Table of Contents


This method supports source fields that are defined on points at the grid corners, cells, or edges. It is based on "Reinheimer, J., 2018: Vector Field Interpolation using Radial Basis Functions. pp 68.".

For each target point this method searches for the n nearest neighbours and then computes the weights based on the distances between the source points and the target point using the selected radial basis functions.

Source field


  • Number of source points per target point (default: n: 9)
  • Scaling factor (default: rbf_scale: YAC_INTERP_RBF_SCALE_DEFAULT)
  • Radial basis function (default: rbf_kernel: gauss_kernel)
    • gauss_kernel

      Gaussian function

      Target field
      n = 1n = 4n = 9

YAML example

- rbf
n: 4
rbf_kernel: gauss_kernel