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! |
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! $Header$ |
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! |
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SUBROUTINE nxgrad_gam( klevel, rot, x, y ) |
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c |
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c P. Le Van |
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c |
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c ******************************************************************** |
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c calcul du gradient tourne de pi/2 du rotationnel du vect.v |
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c ******************************************************************** |
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c rot est un argument d'entree pour le s-prog |
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c x et y sont des arguments de sortie pour le s-prog |
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c |
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IMPLICIT NONE |
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c |
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INCLUDE "dimensions.h" |
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INCLUDE "paramet.h" |
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INCLUDE "comgeom.h" |
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INTEGER klevel |
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REAL rot( ip1jm,klevel ),x( ip1jmp1,klevel ),y(ip1jm,klevel ) |
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INTEGER l,ij |
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c |
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DO 10 l = 1,klevel |
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c |
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DO 1 ij = 2, ip1jm |
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y( ij,l ) = (rot( ij,l ) - rot( ij-1,l )) * cvscuvgam( ij ) |
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1 CONTINUE |
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c |
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c ..... correction pour y ( 1,j,l ) ...... |
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c |
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c .... y(1,j,l)= y(iip1,j,l) .... |
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CDIR$ IVDEP |
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DO 2 ij = 1, ip1jm, iip1 |
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y( ij,l ) = y( ij +iim,l ) |
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2 CONTINUE |
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c |
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DO 4 ij = iip2,ip1jm |
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x( ij,l ) = (rot( ij,l ) - rot( ij -iip1,l )) * cuscvugam( ij ) |
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4 CONTINUE |
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DO 6 ij = 1,iip1 |
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x( ij ,l ) = 0. |
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x( ij +ip1jm,l ) = 0. |
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6 CONTINUE |
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c |
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10 CONTINUE |
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RETURN |
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END |