Patent ID: 8660824

Claim:
A method of refining an initial grid about one or more target features, comprising: identifying one or more fixed pillars located along one or more target features; identifying one or more attractors from among the one or more fixed pillars; and adjusting a position of at least one non-fixed pillar, including: establishing a multi-point stencil of pillars that includes the at least one non-fixed pillar; determining a distance from each pillar of the multi-point stencil of pillars to a nearest one of the one or more attractors; computing an inverse-distance weighted multivariate interpolation mean position based on the determined distances of the multi-point stencil of pillars and weighting values that decrease with respect to distance from the position of each of the at least one non-fixed pillar; and moving the at least one non-fixed pillar to the inverse-distance weighted multivariate interpolation mean position; wherein at least one above-identified operation is at least partially implemented using a processing device.