p1m_functions subroutine, public subroutine, public p1m_functions::p1m_interpolation (N, h, u, edge_values, ppoly_coef, h_neglect, answers_2018) p1m_interpolation N N h h u u edge_values edge_values ppoly_coef ppoly_coef h_neglect h_neglect answers_2018 answers_2018 Linearly interpolate between edge values. The resulting piecewise interpolant is stored in 'ppoly'. See 'ppoly.F90' for a definition of this structure.The edge values MUST have been estimated prior to calling this routine.The estimated edge values must be limited to ensure monotonicity of the interpolant. We also make sure that edge values are NOT discontinuous.It is assumed that the size of the array 'u' is equal to the number of cells defining 'grid' and 'ppoly'. No consistency check is performed here. n Number of cells h cell widths (size N) [H] u cell average properties (size N) [A] edge_values Potentially modified edge values [A] ppoly_coef Potentially modified piecewise polynomial coefficients, mainly [A] h_neglect A negligibly small width [H] answers_2018 If true use older, less acccurate expressions. regrid_edge_values::average_discontinuous_edge_values regrid_edge_values::bound_edge_values regrid_interp::regridding_set_ppolys subroutine, public subroutine, public p1m_functions::p1m_boundary_extrapolation (N, h, u, edge_values, ppoly_coef) p1m_boundary_extrapolation N N h h u u edge_values edge_values ppoly_coef ppoly_coef Interpolation by linear polynomials within boundary cells. The left and right edge values in the left and right boundary cells, respectively, are estimated using a linear extrapolation within the cells.It is assumed that the size of the array 'u' is equal to the number of cells defining 'grid' and 'ppoly'. No consistency check is performed here. n Number of cells h cell widths (size N) [H] u cell averages (size N) [A] edge_values edge values of piecewise polynomials [A] ppoly_coef coefficients of piecewise polynomials, mainly [A] regrid_interp::regridding_set_ppolys Linear interpolation functions. Date of creation: 2008.06.09 L. White.This module contains p1m (linear) interpolation routines.p1m interpolation is performed by estimating the edge values and linearly interpolating between them.