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! |
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! $Id: fxy.F 2598 2016-07-22 09:28:39Z emillour $ |
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! |
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SUBROUTINE fxy (rlatu,yprimu,rlatv,yprimv,rlatu1,yprimu1, |
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, rlatu2,yprimu2, |
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, rlonu,xprimu,rlonv,xprimv,rlonm025,xprimm025,rlonp025,xprimp025) |
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USE comconst_mod, ONLY: pi |
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USE serre_mod, ONLY: pxo,pyo,alphax,alphay,transx,transy |
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IMPLICIT NONE |
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c Auteur : P. Le Van |
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c |
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c Calcul des longitudes et des latitudes pour une fonction f(x,y) |
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c a tangente sinusoidale et eventuellement avec zoom . |
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c |
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c |
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include "dimensions.h" |
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include "paramet.h" |
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INTEGER i,j |
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REAL rlatu(jjp1), yprimu(jjp1),rlatv(jjm), yprimv(jjm), |
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, rlatu1(jjm), yprimu1(jjm), rlatu2(jjm), yprimu2(jjm) |
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REAL rlonu(iip1),xprimu(iip1),rlonv(iip1),xprimv(iip1), |
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, rlonm025(iip1),xprimm025(iip1), rlonp025(iip1),xprimp025(iip1) |
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! |
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! $Header$ |
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! |
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c-------------------------------------------------------------- |
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REAL ripx |
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REAL fx,fxprim,fy,fyprim,ri,rj,bigy |
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c |
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c....stretching in x... |
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c |
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ripx( ri )= (ri-1.0) *2.*pi/REAL(iim) |
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fx ( ri )= ripx(ri) + transx + |
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* alphax * SIN( ripx(ri)+transx-pxo ) - pi |
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fxprim(ri) = 2.*pi/REAL(iim) * |
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* ( 1.+ alphax * COS( ripx(ri)+transx-pxo ) ) |
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c....stretching in y... |
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c |
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bigy(rj) = 2.* (REAL(jjp1)-rj ) *pi/jjm |
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fy(rj) = ( bigy(rj) + transy + |
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* alphay * SIN( bigy(rj)+transy-pyo ) ) /2. - pi/2. |
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fyprim(rj) = ( pi/jjm ) * ( 1.+ |
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* alphay * COS( bigy(rj)+transy-pyo ) ) |
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c fy(rj)= pyo-pisjjm*(rj-transy)+coefalpha*SIN(depisjm*(rj- |
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c * transy )) |
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c fyprim(rj)= pisjjm-pisjjm*coefy2* COS(depisjm*(rj-transy)) |
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c-------------------------------------------------------------- |
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c ...... calcul des latitudes et de y' ..... |
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c |
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DO j = 1, jjm + 1 |
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rlatu(j) = fy ( REAL( j ) ) |
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yprimu(j) = fyprim( REAL( j ) ) |
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ENDDO |
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DO j = 1, jjm |
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rlatv(j) = fy ( REAL( j ) + 0.5 ) |
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rlatu1(j) = fy ( REAL( j ) + 0.25 ) |
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rlatu2(j) = fy ( REAL( j ) + 0.75 ) |
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yprimv(j) = fyprim( REAL( j ) + 0.5 ) |
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yprimu1(j) = fyprim( REAL( j ) + 0.25 ) |
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yprimu2(j) = fyprim( REAL( j ) + 0.75 ) |
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ENDDO |
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c |
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c ..... calcul des longitudes et de x' ..... |
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c |
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DO i = 1, iim + 1 |
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rlonv(i) = fx ( REAL( i ) ) |
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rlonu(i) = fx ( REAL( i ) + 0.5 ) |
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rlonm025(i) = fx ( REAL( i ) - 0.25 ) |
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rlonp025(i) = fx ( REAL( i ) + 0.25 ) |
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xprimv (i) = fxprim ( REAL( i ) ) |
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xprimu (i) = fxprim ( REAL( i ) + 0.5 ) |
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xprimm025(i) = fxprim ( REAL( i ) - 0.25 ) |
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xprimp025(i) = fxprim ( REAL( i ) + 0.25 ) |
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ENDDO |
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c |
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RETURN |
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END |
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