15 |
! Il vaut mieux avoir : grossismx \times dzoom < pi |
! Il vaut mieux avoir : grossismx \times dzoom < pi |
16 |
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17 |
! Le premier point scalaire pour une grille regulière (grossismx = |
! Le premier point scalaire pour une grille regulière (grossismx = |
18 |
! 1., taux=0., clon=0.) est à - 180 degrés. |
! 1., taux = 0., clon = 0.) est à - 180 degrés. |
19 |
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20 |
USE dimens_m, ONLY: iim |
USE dimens_m, ONLY: iim |
21 |
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use dynetat0_m, only: clon, grossismx, dzoomx, taux |
22 |
use invert_zoom_x_m, only: invert_zoom_x, nmax |
use invert_zoom_x_m, only: invert_zoom_x, nmax |
23 |
use nr_util, only: pi, pi_d, twopi, twopi_d, arth |
use nr_util, only: pi, pi_d, twopi, twopi_d, arth |
24 |
use principal_cshift_m, only: principal_cshift |
use principal_cshift_m, only: principal_cshift |
25 |
use serre, only: clon, grossismx, dzoomx, taux |
use tanh_cautious_m, only: tanh_cautious |
26 |
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27 |
REAL, intent(out):: xprimm025(:), rlonv(:), xprimv(:) ! (iim + 1) |
REAL, intent(out):: xprimm025(:), rlonv(:), xprimv(:) ! (iim + 1) |
28 |
real, intent(out):: rlonu(:), xprimu(:), xprimp025(:) ! (iim + 1) |
real, intent(out):: rlonu(:), xprimu(:), xprimp025(:) ! (iim + 1) |
33 |
real d_rlonv(iim) |
real d_rlonv(iim) |
34 |
DOUBLE PRECISION xtild(0:2 * nmax) |
DOUBLE PRECISION xtild(0:2 * nmax) |
35 |
DOUBLE PRECISION fhyp(nmax:2 * nmax), ffdx, beta, Xprimt(0:2 * nmax) |
DOUBLE PRECISION fhyp(nmax:2 * nmax), ffdx, beta, Xprimt(0:2 * nmax) |
36 |
DOUBLE PRECISION Xf(0:2 * nmax), xxpr(2 * nmax) |
DOUBLE PRECISION Xf(0:2 * nmax) |
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DOUBLE PRECISION fa, fb |
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37 |
INTEGER i, is2 |
INTEGER i, is2 |
38 |
DOUBLE PRECISION xmoy, fxm |
DOUBLE PRECISION, dimension(nmax + 1:2 * nmax):: xxpr, xmoy, fxm |
39 |
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40 |
!---------------------------------------------------------------------- |
!---------------------------------------------------------------------- |
41 |
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53 |
rlonm025(:iim) = rlonv(:iim) - 0.25 * step |
rlonm025(:iim) = rlonv(:iim) - 0.25 * step |
54 |
rlonp025(:iim) = rlonv(:iim) + 0.25 * step |
rlonp025(:iim) = rlonv(:iim) + 0.25 * step |
55 |
rlonu(:iim) = rlonv(:iim) + 0.5 * step |
rlonu(:iim) = rlonv(:iim) + 0.5 * step |
56 |
else |
else test_grossismx |
57 |
dzoom = dzoomx * twopi_d |
dzoom = dzoomx * twopi_d |
58 |
xtild = arth(- pi_d, pi_d / nmax, 2 * nmax + 1) |
xtild = arth(- pi_d, pi_d / nmax, 2 * nmax + 1) |
59 |
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forall (i = nmax + 1:2 * nmax) xmoy(i) = 0.5d0 * (xtild(i-1) + xtild(i)) |
60 |
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61 |
! Compute fhyp: |
! Compute fhyp: |
62 |
DO i = nmax, 2 * nmax |
fhyp(nmax + 1:2 * nmax - 1) = tanh_cautious(taux * (dzoom / 2. & |
63 |
fa = taux * (dzoom / 2. - xtild(i)) |
- xtild(nmax + 1:2 * nmax - 1)), xtild(nmax + 1:2 * nmax - 1) & |
64 |
fb = xtild(i) * (pi_d - xtild(i)) |
* (pi_d - xtild(nmax + 1:2 * nmax - 1))) |
65 |
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fhyp(nmax) = 1d0 |
66 |
IF (200. * fb < - fa) THEN |
fhyp(2 * nmax) = -1d0 |
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fhyp(i) = - 1. |
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ELSE IF (200. * fb < fa) THEN |
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fhyp(i) = 1. |
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ELSE |
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IF (ABS(fa) < 1e-13 .AND. ABS(fb) < 1e-13) THEN |
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IF (200. * fb + fa < 1e-10) THEN |
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fhyp(i) = - 1. |
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ELSE IF (200. * fb - fa < 1e-10) THEN |
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fhyp(i) = 1. |
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END IF |
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ELSE |
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fhyp(i) = TANH(fa / fb) |
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END IF |
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END IF |
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67 |
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68 |
IF (xtild(i) == 0.) fhyp(i) = 1. |
fxm = tanh_cautious(taux * (dzoom / 2. - xmoy), xmoy * (pi_d - xmoy)) |
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IF (xtild(i) == pi_d) fhyp(i) = -1. |
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END DO |
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69 |
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70 |
! Calcul de beta |
! Calcul de beta |
71 |
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72 |
ffdx = 0. |
ffdx = 0. |
73 |
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74 |
DO i = nmax + 1, 2 * nmax |
DO i = nmax + 1, 2 * nmax |
75 |
xmoy = 0.5 * (xtild(i-1) + xtild(i)) |
ffdx = ffdx + fxm(i) * (xtild(i) - xtild(i-1)) |
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fa = taux * (dzoom / 2. - xmoy) |
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fb = xmoy * (pi_d - xmoy) |
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IF (200. * fb < - fa) THEN |
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fxm = - 1. |
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ELSE IF (200. * fb < fa) THEN |
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fxm = 1. |
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ELSE |
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IF (ABS(fa) < 1e-13 .AND. ABS(fb) < 1e-13) THEN |
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IF (200. * fb + fa < 1e-10) THEN |
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fxm = - 1. |
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ELSE IF (200. * fb - fa < 1e-10) THEN |
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fxm = 1. |
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END IF |
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ELSE |
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fxm = TANH(fa / fb) |
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END IF |
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END IF |
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IF (xmoy == 0.) fxm = 1. |
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IF (xmoy == pi_d) fxm = -1. |
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ffdx = ffdx + fxm * (xtild(i) - xtild(i-1)) |
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76 |
END DO |
END DO |
77 |
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78 |
print *, "ffdx = ", ffdx |
print *, "ffdx = ", ffdx |
79 |
beta = (grossismx * ffdx - pi_d) / (ffdx - pi_d) |
beta = (pi_d - grossismx * ffdx) / (pi_d - ffdx) |
80 |
print *, "beta = ", beta |
print *, "beta = ", beta |
81 |
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82 |
IF (2. * beta - grossismx <= 0.) THEN |
IF (2. * beta - grossismx <= 0.) THEN |
91 |
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92 |
! Calcul de Xf |
! Calcul de Xf |
93 |
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94 |
DO i = nmax + 1, 2 * nmax |
xxpr = beta + (grossismx - beta) * fxm |
95 |
xmoy = 0.5 * (xtild(i-1) + xtild(i)) |
Xf(nmax) = 0d0 |
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fa = taux * (dzoom / 2. - xmoy) |
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fb = xmoy * (pi_d - xmoy) |
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IF (200. * fb < - fa) THEN |
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fxm = - 1. |
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ELSE IF (200. * fb < fa) THEN |
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fxm = 1. |
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ELSE |
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fxm = TANH(fa / fb) |
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END IF |
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IF (xmoy == 0.) fxm = 1. |
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IF (xmoy == pi_d) fxm = -1. |
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xxpr(i) = beta + (grossismx - beta) * fxm |
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END DO |
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xxpr(:nmax) = xxpr(2 * nmax:nmax + 1:- 1) |
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Xf(0) = - pi_d |
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96 |
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97 |
DO i=1, 2 * nmax - 1 |
DO i = nmax + 1, 2 * nmax - 1 |
98 |
Xf(i) = Xf(i-1) + xxpr(i) * (xtild(i) - xtild(i-1)) |
Xf(i) = Xf(i-1) + xxpr(i) * (xtild(i) - xtild(i-1)) |
99 |
END DO |
END DO |
100 |
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101 |
Xf(2 * nmax) = pi_d |
Xf(2 * nmax) = pi_d |
102 |
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xf(:nmax - 1) = - xf(2 * nmax:nmax + 1:- 1) |
103 |
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104 |
call invert_zoom_x(xf, xtild, Xprimt, rlonm025(:iim), xprimm025(:iim), & |
call invert_zoom_x(xf, xtild, Xprimt, rlonm025(:iim), xprimm025(:iim), & |
105 |
xuv = - 0.25d0) |
xuv = - 0.25d0) |