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! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/nxgrarot.F,v 1.1.1.1 2004/05/19 12:53:06 lmdzadmin Exp $ |
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SUBROUTINE nxgrarot (klevel,xcov, ycov, lr, grx, gry, crot ) |
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c *********************************************************** |
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c Auteur : P.Le Van |
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c lr |
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c calcul de ( nXgrad (rot) ) du vect. v .... |
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c xcov et ycov etant les compos. covariantes de v |
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c *********************************************************** |
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c xcov , ycov et lr sont des arguments d'entree pour le s-prog |
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c grx et gry sont des arguments de sortie pour le s-prog |
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use dimens_m |
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use paramet_m |
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use logic |
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use filtreg_m, only: filtreg |
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IMPLICIT NONE |
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INTEGER klevel |
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REAL, intent(in):: xcov( ip1jmp1,klevel ), ycov( ip1jm,klevel ) |
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REAL, intent(out):: grx( ip1jmp1,klevel ), gry( ip1jm,klevel ) |
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real, intent(in):: crot |
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REAL rot(ip1jm,llm) |
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INTEGER l,ij,iter |
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integer, intent(in):: lr |
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grx = xcov |
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gry = ycov |
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DO 10 iter = 1,lr |
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CALL rotat (klevel,grx, gry, rot ) |
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CALL filtreg( rot, jjm, klevel, 2,1, .false.,2) |
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CALL nxgrad (klevel,rot, grx, gry ) |
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DO 5 l = 1, klevel |
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DO 2 ij = 1, ip1jm |
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gry( ij,l ) = - gry( ij,l ) * crot |
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2 CONTINUE |
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DO 3 ij = 1, ip1jmp1 |
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grx( ij,l ) = - grx( ij,l ) * crot |
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3 CONTINUE |
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5 CONTINUE |
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c |
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10 CONTINUE |
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RETURN |
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END |