function G = rayxgridfRCC(F, transla, val)%------------------------------------------------------------------------------% Multiplies gridfunction F with element of stencil given by its value% val and its position transla.% Excess area is filled by Cell-Centered (CC) Reflection across boundaries.%% Design and implementation by:% Dr. Paul M. de Zeeuw <Paul.de.Zeeuw@cwi.nl>  http://homepages.cwi.nl/~pauldz/% Last Revision: June 23, 2000.% Copyright 1999-2002 Stichting CWI, Amsterdam.%------------------------------------------------------------------------------o=[0 0];if ~all(size(o) == size(transla))  error(' rayxgridfRCC - unexpected dimensions of transla ')endG = val * moveLRRCC(moveUDRCC(F, -transla(1)), -transla(2));%------------------------------------------------------------------------------