Shortley-Weller weights (5-point cut-cell stencil) from the 4 cut distances. More...

#include <cut_fraction.hpp>

Collaboration diagram for pops::detail::ShortleyWellerWeights:

Public Attributes
Real	w_xm

Real	w_xp

Real	w_ym

Real	w_yp

Real	w_diag

Detailed Description

Shortley-Weller weights (5-point cut-cell stencil) from the 4 cut distances.

Returns EXACTLY the 5 coefficients that GeometricMG writes into its coef field (components 0..4): w_xm = 2 / (axm (axm + axp)), w_xp = 2 / (axp (axm + axp)), w_ym = 2 / (aym (aym + ayp)), w_yp = 2 / (ayp (aym + ayp)), w_diag = 2 / (axm axp) + 2 / (aym ayp). Centralizes the formula so the elliptic assembly stays the single source of cut-cell truth.

Member Data Documentation

◆ w_diag

Real pops::detail::ShortleyWellerWeights::w_diag

◆ w_xm

Real pops::detail::ShortleyWellerWeights::w_xm

◆ w_xp

Real pops::detail::ShortleyWellerWeights::w_xp

◆ w_ym

Real pops::detail::ShortleyWellerWeights::w_ym

◆ w_yp

Real pops::detail::ShortleyWellerWeights::w_yp

The documentation for this struct was generated from the following file:

include/pops/numerics/elliptic/eb/cut_fraction.hpp

ShortleyWellerWeights Struct Reference¶