%POINT_APPROXIMATE%

approximation of a functional at a BND_point by MESHFREE interpolation

If a BND_point is active throughout the simulation and has a POSTPROCESS-flag, the user can approximate any given function (ExpressionOfIntegrand) at this point by interpolation of MESHFREE points in its neighborhood:

INTEGRATION($IntInd$) = ( %POINT_APPROXIMATE%, ExpressionOfIntegrand, $PostprocessTag$)

If the BND_point has no neighbors, the result is zero. Example:

begin_boundary_elements{} BND_point ACTIVE%ACTIVE_always% CHAMBER1 POSTPROCESS$PostprocessTag$ x y z end_boundary_elements{} INTEGRATION($IntInd$) = ( %POINT_APPROXIMATE%, [Y%ind_p%+Y%ind_p_dyn%], $PostprocessTag$)

See also %POINT_APPROXIMATE_ProjBNDOnly% and %POINT_DIRECT%.