- Updated Makefiles

- Moved TAS code to psi
- Updated programmers documentation
This commit is contained in:
cvs
2003-06-30 11:51:39 +00:00
parent 9696421d66
commit cd13637987
10 changed files with 3439 additions and 3 deletions

838
t_conv.c Normal file
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/* t_conv.f -- translated by f2c (version 20000817).
You must link the resulting object file with the libraries:
-lf2c -lm (in that order)
*/
#include "f2c.h"
/* Common Block Declarations */
struct {
integer icrm, icra, iclm;
real cm1rx, cm2rx, ca1rx, ca2rx, rmmin, rmmax, ramin, ramax;
integer inx;
logical at_sinq__;
} curve_;
#define curve_1 curve_
/* Table of constant values */
static integer c__0 = 0;
static integer c__1 = 1;
static doublereal c_b10 = 1.;
static doublereal c_b12 = 360.;
/* ------------------------------------------------------------------------ */
/* slightly edited version for inclusion into SICS */
/* Mark Koennecke, November 2000 */
/* Found that ERRESO looks error messages up in a 2D array. Modified IER */
/* values to refer to a 1D array. */
/* Mark Koennecke, January 2002 */
/* ------------------------------------------------------------------------- */
/* Subroutine */ int inicurve_(integer *midx, real *mrx1, real *mrx2, integer
*aidx, real *arx1, real *arx2, real *mmin, real *mmax, real *amin,
real *amax)
{
/* Initializes a common with the curvature parameters. */
/* In: monochrmoator curvatuure motor index and parameters */
/* In: analyzer curvature motor index + parameters */
curve_1.icrm = *midx;
curve_1.icra = *aidx;
curve_1.cm1rx = *mrx1;
curve_1.cm2rx = *mrx2;
curve_1.ca1rx = *arx1;
curve_1.ca2rx = *arx2;
curve_1.rmmin = *mmin;
curve_1.rmmax = *mmax;
curve_1.ramin = *amin;
curve_1.ramax = *amax;
curve_1.inx = 0;
curve_1.at_sinq__ = TRUE_;
curve_1.iclm = 0;
return 0;
} /* inicurve_ */
/* -------------------------------------------------------------------------- */
/* Subroutine */ int t_conv__(real *ei, real *aki, real *ef, real *akf, real *
qhkl, real *en, real *hx, real *hy, real *hz, integer *if1, integer *
if2, logical *ldk, logical *ldh, logical *ldf, logical *lpa, real *dm,
real *da, real *helm, real *f1h, real *f1v, real *f2h, real *f2v,
real *f, integer *ifx, integer *iss, integer *ism, integer *isa, real
*t_a__, real *t_rm__, real *t_alm__, real *t_ra__, real *qm, logical *
ldra, logical *ldr_rm__, logical *ldr_alm__, logical *ldr_ra__, real *
p_ih__, real *c_ih__, doublereal *a4, integer *ier)
{
/* System generated locals */
doublereal d__1;
/* Builtin functions */
double sqrt(doublereal);
/* Local variables */
static doublereal edef[2], dakf, daki;
static integer imod;
extern /* Subroutine */ int sam_case__(doublereal *, doublereal *,
doublereal *, doublereal *, doublereal *, doublereal *,
doublereal *, integer *, integer *);
static integer i__;
static doublereal akdef[2];
extern /* Subroutine */ int helm_case__(real *, real *, real *, real *,
real *, real *, real *, doublereal *, real *, real *, integer *);
static doublereal dqhkl[3];
extern /* Subroutine */ int flip_case__(integer *, integer *, real *,
real *, real *, real *, real *, real *, real *, integer *);
static logical lmoan[2];
static doublereal a1, a2, a3, a5, a6;
static integer id;
static doublereal ra;
extern /* Subroutine */ int rl2spv_(doublereal *, doublereal *,
doublereal *, doublereal *, integer *);
static integer iq;
static doublereal rm;
static logical lqhkle;
extern /* Subroutine */ int erreso_(integer *, integer *);
static doublereal dda, ala, def, dei, ddm, alm, dqm, dqs, dqt[3];
extern /* Subroutine */ int ex_case__(doublereal *, integer *, doublereal
*, doublereal *, doublereal *, doublereal *, doublereal *,
integer *, integer *);
/* ================= */
/* dec$ ident 'V01D' */
/* ----------------------------------------------------------------------- */
/* Other routines in this file: */
/* SUBROUTINE EX_CASE (DX,ISX,AKX,AX1,AX2,RX,ALX,IER) */
/* SUBROUTINE SAM_CASE (QT,QM,QS,AKI,AKF,AX3,AX4,ISS,IER) */
/* SUBROUTINE HELM_CASE (HX,HY,HZ,P_IH,AKI,AKF,A4,QM,HELM,IER) */
/* SUBROUTINE FLIP_CASE (IF1,IF2,P_IH,F1V,F1H,F2V,F2H,AKI,AKF,IER) */
/* ----------------------------------------------------------------------- */
/* INPUTS */
/* EI,AKI,EF,AKF,QHKL,EN,HX,HY,HZ : POTENTIAL TARGETS */
/* IF1,IF2 Status of flippers On (1) Off (0) */
/* LDK(8) LOGICAL INDICATING IF (ENERGY,K OR Q) ARE DRIVEN */
/* LDH,LDF LOGICAL INDICATING IF (HX,HY,HZ) OR (F1,F2) ARE DRIVEN */
/* configuration of the machine */
/* LPA LOGICAL TRUE IF MACHINE IN POLARIZATION MODE */
/* DM,DA,HELM,F1H,F1V,F2H,F2V,F,IFX,ISS,ISM,ISA,QM (F ENERGY UNIT) */
/* OUTPUTs */
/* T_A TARGETS OF ANGLES A1-A6 */
/* T_RM,T_ALM TARGETS OF RM ,LM */
/* T_RA TARGET OF RA */
/* QM TARGETS OF QM */
/* LDRA LOGICAL INDICATING WHICH ANGLES ARE TO BE DRIVEN */
/* LDR_RM LOGICAL INDICATING IF RM (mono curve) IS TO BE DRIVEN */
/* LDR_ALM LOGICAL INDICATING IF ALM (mono transl) IS TO BE DRIVEN */
/* LDR_RA LOGICAL INDICATING IF RA (anal curve) IS TO BE DRIVEN */
/* P_IH TARGETS OF CURRENTS FOR FLIPPERS AND HELMOTZ (8 CURRENTS) */
/* C_IH CONVERSION FACTORS FOR HELMOTZ (4 CURRENTS) */
/* SPECIAL OUTPUTS */
/* TARGET OF EI(EF) IS UPDATED IS KI(KF) IS DRIVEN */
/* TARGET OF VARIABLE ENERGY IS UPDATED IF EN IS DRIVEN */
/* ----------------------------------------------------------------------- */
/* File [MAD.SRC]T_CONV.FOR */
/* include 'curve.inc' */
/* ----------------------------------------------------------------------- */
/* Define the dummy arguments */
/* ----------------------------------------------------------------------- */
/* LOCAL VARIABLES */
/* ----------------------------------------------------------------------- */
/* SET UP */
/* IMOD INDEX FOR ERROR TREATMENAT BY ERRESO */
/* LDQHKLE : LOGICAL INDICATING THAT WE ARE DEALING WITH A MOVE */
/* IN RECIPROCICAL SPACE */
/* WE REMAP THE ENERGY PB AS FIXED ENERGY IN EDEF(1) */
/* AND VARIABLE ENERGY IN EDEF(2) */
/* IF ISA IS NUL SET IFX TO 1 AND PUT EF,KF, EQUAL TO EI,KI */
/* Parameter adjustments */
--c_ih__;
--p_ih__;
--ldra;
--t_a__;
--ldk;
--qhkl;
/* Function Body */
imod = 3;
ddm = *dm;
dda = *da;
for (i__ = 1; i__ <= 2; ++i__) {
lmoan[i__ - 1] = FALSE_;
}
lqhkle = FALSE_;
for (iq = 5; iq <= 8; ++iq) {
lqhkle = lqhkle || ldk[iq];
}
daki = *aki;
dakf = *akf;
if (*isa == 0) {
*ifx = 1;
}
edef[*ifx - 1] = *ei;
akdef[*ifx - 1] = *aki;
edef[3 - *ifx - 1] = *ef;
akdef[3 - *ifx - 1] = *akf;
if (*isa == 0) {
edef[1] = edef[0];
akdef[1] = akdef[0];
ldk[3] = TRUE_;
ldk[4] = TRUE_;
t_a__[5] = 0.f;
t_a__[6] = 0.f;
ldra[5] = TRUE_;
ldra[6] = TRUE_;
}
/* ----------------------------------------------------------------------- */
/* FIRST TAKE IN ACCOUNT THE FIXED ENERGY PB */
if (ldk[(*ifx << 1) - 1] || ldk[*ifx * 2]) {
lmoan[*ifx - 1] = TRUE_;
if (ldk[(*ifx << 1) - 1]) {
*ier = 9;
if (edef[0] < .1f) {
goto L999;
}
*ier = 0;
akdef[0] = sqrt(edef[0] / *f);
} else {
*ier = 9;
if (akdef[0] < .1f) {
goto L999;
}
*ier = 0;
/* Computing 2nd power */
d__1 = akdef[0];
edef[0] = *f * (d__1 * d__1);
}
}
/* ----------------------------------------------------------------------- */
/* NOW TAKE IN ACCOUNT THE VARIABLE ENERGY PB */
/* VARIABLE ENERGUY IS DRIVEN EITHER EXPLICITLY */
/* E.G. BY DRIVING EI OR KI WITH IFX=2 */
/* ( AND WE MUST CALCULATE EN FROM EVAR) */
/* THE RULE IS : EI=EF+EN : EN IS THE ENERGY LOSS OF NEUTRONS */
/* OR ENERGY GAIN OF SAMPLE */
/* OR IMPLICITLY BY DRIVING THE TRANSFERED ENERGY EN */
/* ( AND WE MUST CALCULATE EVAR FROM EN) */
/* IF KI IS CONSTANT USE THE CURRENT VALUE CONTAINED IN POSN ARRAY */
/* TO CALCULATE THE NON-"CONSTANT" K. */
/* IF KF IS CONSTANT USE ALWAYS THE VALUE IN TARGET AND */
/* DO A DRIVE OF KF TO KEEP A5/A6 IN RIGHT POSITION */
if (ldk[5 - (*ifx << 1)] || ldk[6 - (*ifx << 1)]) {
lmoan[3 - *ifx - 1] = TRUE_;
if (ldk[5 - (*ifx << 1)]) {
*ier = 9;
if (edef[1] < 1e-4f) {
goto L999;
}
*ier = 0;
akdef[1] = sqrt(edef[1] / *f);
} else {
*ier = 9;
if (akdef[1] < 1e-4f) {
goto L999;
}
*ier = 0;
/* Computing 2nd power */
d__1 = akdef[1];
edef[1] = *f * (d__1 * d__1);
}
*en = (3 - (*ifx << 1)) * (edef[0] - edef[1]);
} else if (lqhkle) {
lmoan[3 - *ifx - 1] = TRUE_;
edef[1] = edef[0] + ((*ifx << 1) - 3) * *en;
*ier = 9;
if (edef[1] < 1e-4f) {
goto L999;
}
*ier = 0;
akdef[1] = sqrt(edef[1] / *f);
}
/* ----------------------------------------------------------------------- */
/* CALCULATE MONOCHROMATOR AND ANALYSER ANGLES */
if (lmoan[0]) {
dei = edef[*ifx - 1];
daki = akdef[*ifx - 1];
ex_case__(&ddm, ism, &daki, &a1, &a2, &rm, &alm, &c__0, ier);
if (*ier == 0) {
*aki = daki;
*ei = dei;
t_a__[1] = a1;
t_a__[2] = a2;
ldra[1] = TRUE_;
ldra[2] = TRUE_;
if (curve_1.icrm != 0) {
*t_rm__ = rm;
*ldr_rm__ = TRUE_;
}
if (curve_1.iclm != 0 && curve_1.inx != 0) {
*t_alm__ = alm;
*ldr_alm__ = TRUE_;
}
} else {
*ier += 8;
goto L999;
}
}
if (lmoan[1]) {
def = edef[3 - *ifx - 1];
dakf = akdef[3 - *ifx - 1];
ex_case__(&dda, isa, &dakf, &a5, &a6, &ra, &ala, &c__1, ier);
if (*ier == 0) {
*akf = dakf;
*ef = def;
t_a__[5] = a5;
t_a__[6] = a6;
ldra[5] = TRUE_;
ldra[6] = TRUE_;
if (curve_1.icra != 0) {
*t_ra__ = ra;
*ldr_ra__ = TRUE_;
}
} else {
*ier += 8;
goto L999;
}
}
/* ----------------------------------------------------------------------- */
/* USE (QH,QK,QL) TO CALCULATE A3 AND A4 */
/* CALCULATE Q1 AND Q2 IN SCATTERING PLANE */
imod = 2;
if (lqhkle) {
for (id = 1; id <= 3; ++id) {
dqhkl[id - 1] = qhkl[id];
}
rl2spv_(dqhkl, dqt, &dqm, &dqs, ier);
if (*ier != 0) {
goto L999;
}
sam_case__(dqt, &dqm, &dqs, &daki, &dakf, &a3, a4, iss, ier);
if (*ier == 0) {
t_a__[3] = a3;
t_a__[4] = *a4;
ldra[3] = TRUE_;
ldra[4] = TRUE_;
*qm = dqm;
} else {
*ier += 4;
goto L999;
}
}
/* ----------------------------------------------------------------------- */
/* DEAL WITH FLIPPERS AND HELMOTZ COILS IF LPA */
if (*lpa) {
if (*ldf) {
flip_case__(if1, if2, &p_ih__[1], f1v, f1h, f2v, f2h, aki, akf,
ier);
}
if (*ldh) {
helm_case__(hx, hy, hz, &p_ih__[1], &c_ih__[1], aki, akf, a4, qm,
helm, ier);
}
}
/* ----------------------------------------------------------------------- */
L999:
if (*ier != 0) {
erreso_(&imod, ier);
}
return 0;
} /* t_conv__ */
/* Subroutine */ int ex_case__(doublereal *dx, integer *isx, doublereal *akx,
doublereal *ax1, doublereal *ax2, doublereal *rx, doublereal *alx,
integer *mon_or_anal__, integer *ier)
{
/* System generated locals */
doublereal d__1;
/* Builtin functions */
double asin(doublereal), sin(doublereal), cos(doublereal), sqrt(
doublereal);
/* Local variables */
static integer indx;
static doublereal dcl1r, dc1rx, dc2rx, drmin, drmax, my_rx__, arg;
/* ================== */
/* CALCULATE ANGLES ON MONO/ANALYSER */
/* CALCULATE AX1 AX2 */
/* CALCULATE RX = MONO OR ANAL CURVATURE AND LM = MONO POSIT FOR IN8 */
/* INPUTS */
/* DX D-SPACINGS */
/* ISX SENS OF SCATTERING ON CRYSTAL. If =0, this is probably */
/* a 3-axis instr. in simulated 2-axis mode and the */
/* calculation is for the scattering at the analyser. */
/* In this case, we set AX1 = AX2 = 0 which gives a */
/* "straight-through" setting of A5 & A6 (because of */
/* a simultaneous 90 degree zero offset for A5 -- this */
/* is a bit of a hack, if you ask me!). */
/* AKX TARGET OF MOMENTUM */
/* MON_OR_ANAL =0 if calculation is for mono. */
/* =1 if calculation is for anal. */
/* OUTPUTS */
/* AX1 AX2 THETA 2*THETA ANGLES */
/* RX MONO OR ANALYSER CURVATURE */
/* ALX SPECIAL TRANSLATION FOR IN8 */
/* IER */
/* 1 'KI OR KF CANNOT BE OBTAINED CHECK D-SPACINGS', */
/* 2 'KI OR KF TOO SMALL', */
/* 3 'KI OR KF TOO BIG', */
/* ----------------------------------------------------------------------- */
/* Part of T_CONV.FOR */
/* ----------------------------------------------------------------------- */
/* Define the dummy arguments */
/* ----------------------------------------------------------------------- */
/* include 'curve.inc' */
/* include 'motdef.inc' */
/* include 'iolsddef.inc' */
/* real*4 tbut(5,NBMOT) */
/* equivalence (rbut, tbut) */
/* ----------------------------------------------------------------------- */
/* LOCAL VAR */
/* ----------------------------------------------------------------------- */
/* INIT AND TEST */
*ier = 0;
*ax1 = 0.f;
*ax2 = 0.f;
*rx = 0.f;
*alx = 0.f;
/* ---------------------------------------------------------------------- */
/* Check validity of inputs. */
if (*dx < .1) {
*ier = 1;
}
if (*akx < .1) {
*ier = 2;
}
arg = 3.1415926535897932384626433832795 / (*dx * *akx);
if (abs(arg) > 1.f) {
*ier = 3;
}
if (*ier != 0) {
goto L999;
}
/* ---------------------------------------------------------------------- */
if (*mon_or_anal__ == 0) {
/* Use monochr or anal params? */
indx = curve_1.icrm;
/* Monochr, so set up params. */
dc1rx = curve_1.cm1rx;
dc2rx = curve_1.cm2rx;
dcl1r = (doublereal) curve_1.iclm;
drmin = curve_1.rmmin;
drmax = curve_1.rmmax;
} else {
indx = curve_1.icra;
/* Analyser, so set up params. */
dc1rx = curve_1.ca1rx;
/* There is no ALX in this case. */
dc2rx = curve_1.ca2rx;
drmin = curve_1.ramin;
drmax = curve_1.ramax;
}
/* if (indx .ne. 0) then ! Include zero-offset in min/max */
/* drmin = drmin + tbut(3,indx) */
/* drmax = drmax + tbut(3,indx) */
/* if (drmin .lt. tbut(1,indx)) drmin = tbut(1,indx) */
/* if (drmax .gt. tbut(2,indx)) drmax = tbut(2,indx) */
/* endif */
/* ----------------------------------------------------------------------- */
/* Calculation of the two angles */
if (*isx == 0) {
/* "Straight-through" mode? */
*ax1 = 0.f;
/* Yes. */
*ax2 = 0.f;
*rx = drmin;
*alx = 0.f;
return 0;
}
*ax1 = asin(arg) * *isx * 57.29577951308232087679815481410517;
*ax2 = *ax1 * 2.;
/* ----------------------------------------------------------------------- */
/* Calculation of mono curvature RM or analyser curvature RA */
/* Standard law is: */
/* For monochr: */
/* CM1RX + CM2RX/SIN(abs(A1)/RD) */
/* For analyser: */
/* CA1RX + CA2RX*SIN(abs(A5)/RD) */
/* CM1RX/CM2RX/CA1RX/CA2RX are parameters depending on monochr/analyser and */
/* instrument. They are read from CURVE.INI in routine SETUP_MOT_CURVE. */
/* e.g. cm1rx = .47 */
/* cm2rx = .244 */
/* rmmin = 0. */
/* rmmax = 20. */
/* ----------------------------------------------------------------------- */
if (*mon_or_anal__ == 0) {
/* Monochr or analyser? */
if (curve_1.inx != 0) {
/* Monochr. Is there a translation? */
if (curve_1.iclm != 0) {
/* Yes, IN8 case. If there's a .. */
*alx = dcl1r / sin(*ax2 / 57.29577951308232087679815481410517)
* cos(*ax2 / 57.29577951308232087679815481410517);
/* .. motor, do the .. */
*rx = dc2rx * sqrt(sin(abs(*ax2) /
57.29577951308232087679815481410517)) - dc1rx;
/* .. calculation. */
/* Computing MIN */
d__1 = max(*rx,drmin);
*rx = min(d__1,drmax);
return 0;
}
} else {
/* Not IN8 case so, .. */
my_rx__ = dc1rx + dc2rx / sin(abs(*ax1) /
57.29577951308232087679815481410517);
/* .. simply calculate. */
}
} else {
/* Analyser. */
my_rx__ = dc1rx + dc2rx * sin(abs(*ax1) /
57.29577951308232087679815481410517);
/* Simply calculate. */
}
if (indx != 0) {
/* If there's a motor, return the curvature. */
/* Computing MIN */
d__1 = max(my_rx__,drmin);
*rx = min(d__1,drmax);
/* if (rx .ne. my_rx) then */
/* write (iolun, 101, iostat=ios) motnam(indx), my_rx */
/* 101 format (' Warning -- ', a8, 'curvature restricted by low ', */
/* + 'or high limits!'/ */
/* + ' Calculated curvature was', f9.2) */
/* endif */
}
/* ----------------------------------------------------------------------- */
L999:
return 0;
} /* ex_case__ */
/* Subroutine */ int sam_case__(doublereal *qt, doublereal *qm, doublereal *
qs, doublereal *aki, doublereal *akf, doublereal *ax3, doublereal *
ax4, integer *iss, integer *ier)
{
/* System generated locals */
doublereal d__1, d__2;
/* Builtin functions */
double acos(doublereal), atan2(doublereal, doublereal), d_sign(doublereal
*, doublereal *), d_mod(doublereal *, doublereal *);
/* Local variables */
static doublereal arg, sax3;
/* =================== */
/* DEAL WITH SAMPLE ANGLES CALCULATION FROM Q VECTOR IN C-N PLANE */
/* CALCULATE A3 AND A4 */
/* INPUTS */
/* QT Q-VECTOR IN SCATTERING PLANE */
/* QM,QS Q MODULUS AND QMODULUS SQUARED */
/* AKI,AKF MOMEMTA ON MONO AND ANYLSER */
/* ISS SENS OF SCATTERING ON SAMPLE */
/* OUTPUTS */
/* AX3 AX4 ANGLES ON SAMPLES */
/* IER SAME ERROR AS RL2SPV */
/* IER */
/* 1 'MATRIX S NOT OK', */
/* 2 'Q NOT IN SCATTERING PLANE', */
/* 3 'Q MODULUS TOO SMALL', */
/* 4 'Q MODULUS TOO BIG', */
/* ----------------------------------------------------------------------- */
/* Part of T_CONV.FOR */
/* ----------------------------------------------------------------------- */
/* Define the dummy arguments */
/* ----------------------------------------------------------------------- */
/* Local variables */
/* ----------------------------------------------------------------------- */
/* INIT AND TEST */
/* Parameter adjustments */
--qt;
/* Function Body */
*ier = 0;
if (abs(*qs) < 1e-6 || abs(*qm) < .001) {
*ier = 3;
goto L999;
}
/* ----------------------------------------------------------------------- */
/* CALCULATE A3 AND MOVE IT INTHE -180 ,+180 INTERVAL */
/* Computing 2nd power */
d__1 = *aki;
/* Computing 2nd power */
d__2 = *akf;
arg = (d__1 * d__1 + d__2 * d__2 - *qs) / (*aki * 2. * *akf);
if (abs(arg) > 1.) {
*ier = 4;
goto L999;
} else {
*ax4 = acos(arg) * *iss * 57.29577951308232087679815481410517;
}
/* Computing 2nd power */
d__1 = *akf;
/* Computing 2nd power */
d__2 = *aki;
*ax3 = (-atan2(qt[2], qt[1]) - acos((d__1 * d__1 - *qs - d__2 * d__2) / (*
qm * -2. * *aki)) * d_sign(&c_b10, ax4)) *
57.29577951308232087679815481410517;
sax3 = d_sign(&c_b10, ax3);
d__1 = *ax3 + sax3 * 180.;
*ax3 = d_mod(&d__1, &c_b12) - sax3 * 180.;
/* IF(LPLATE) AX3 = -ATAN(SIN(AX4/RD)/(LSA*TAN(AX5/RD)/(ALMS*C */
/* 1 TAN(AX1/RD))*(AKI/KF)**2-COS(AX4/RD)))*RD !PLATE FOCALIZATION OPTION */
/* IF(AXX3 .GT. 180.D0) AX3 = AX3-360.D0 */
/* IF( A3 .LT. -180.D0) AX3 = AX3+360.D0 */
/* IF(LPLATE .AND. (A3 .GT. 0.0)) AX3 = AX3-180 */
/* C----------------------------------------------------------------------- */
L999:
return 0;
} /* sam_case__ */
/* Subroutine */ int helm_case__(real *hx, real *hy, real *hz, real *t_ih__,
real *c_ih__, real *aki, real *akf, doublereal *a4, real *qm, real *
helm, integer *ier)
{
/* System generated locals */
integer i__1;
real r__1, r__2;
/* Builtin functions */
double cos(doublereal), sin(doublereal), atan2(doublereal, doublereal),
sqrt(doublereal);
/* Local variables */
static doublereal hrad, hdir, qpar, hdir2;
static integer ncoef;
static doublereal qperp;
static integer ic;
static doublereal phi;
static logical at_sinq__;
/* ==================== */
/* DEAL WITH HELMOTZ COIL FIELD CALCULATIONS */
/* CALCULATE HX HY HZ */
/* ----------------------------------------------------------------------- */
/* At ILL: */
/* There are 3 coils for Hx/Hy at 120 degrees to each other. */
/* There is a 4th coil for Hz. */
/* At SINQ: */
/* There is an Hx coil and an Hy coil (actually each is 4 coils powered */
/* in series). They are mounted on a ring (SRO). The value of HELM is */
/* the angle between the Hx coil and ki. */
/* There is a 3rd coil for Hz. */
/* ----------------------------------------------------------------------- */
/* Part of T_CONV.FOR */
/* include 'common_sinq.inc' */
/* ----------------------------------------------------------------------- */
/* Define the dummy arguments */
/* ----------------------------------------------------------------------- */
/* Local variables */
/* ----------------------------------------------------------------------- */
/* INIT AND TEST */
/* Parameter adjustments */
--c_ih__;
--t_ih__;
/* Function Body */
at_sinq__ = TRUE_;
ncoef = 4;
if (at_sinq__) {
ncoef = 3;
}
*ier = 1;
if (dabs(*qm) < 1e-4) {
goto L999;
}
*ier = 0;
i__1 = ncoef;
for (ic = 1; ic <= i__1; ++ic) {
if (c_ih__[ic] < 1e-4) {
*ier = 2;
}
}
if (*ier != 0) {
goto L999;
}
/* ----------------------------------------------------------------------- */
/* CALCULATE MODULE AND ANGLES OF IN PLANE FIELD H */
/* PHI ! Angle between Q and KI (in radians) */
/* HRAD ! Radial comp. of H */
/* HDIR ! Direction of H relative to PHI (in radians) */
/* HDIR2 ! Angle between field and axis of Coil 1 (in radians) */
qpar = *aki - *akf * cos(*a4 / 57.29577951308232087679815481410517);
qperp = -(*akf) * sin(*a4 / 57.29577951308232087679815481410517);
if (abs(qpar) > .001 && abs(qperp) > .001) {
phi = atan2((abs(qperp)), (abs(qpar)));
if (qpar > 0. && qperp < 0.) {
phi = -phi;
} else if (qpar < 0. && qperp > 0.) {
phi = 3.1415926535897932384626433832795 - phi;
} else if (qpar < 0. && qperp < 0.) {
phi += -3.1415926535897932384626433832795;
}
} else if (abs(qpar) > .001) {
if (qpar >= 0.f) {
phi = 0.f;
}
if (qpar < 0.f) {
phi = 3.1415926535897932384626433832795;
}
} else if (abs(qperp) > .001) {
if (qperp >= 0.f) {
phi = 1.5707963267948966;
}
if (qperp < 0.f) {
phi = -1.5707963267948966;
}
} else {
phi = 0.f;
}
/* Computing 2nd power */
r__1 = *hx;
/* Computing 2nd power */
r__2 = *hy;
hrad = sqrt(r__1 * r__1 + r__2 * r__2);
if (dabs(*hx) > .001 && dabs(*hy) > .001) {
hdir = atan2((dabs(*hy)), (dabs(*hx)));
if (*hx > 0.f && *hy < 0.f) {
hdir = -hdir;
} else if (*hx < 0.f && *hy > 0.f) {
hdir = 3.1415926535897932384626433832795 - hdir;
} else if (*hx < 0.f && *hy < 0.f) {
hdir += -3.1415926535897932384626433832795;
}
} else if (dabs(*hx) > .001) {
if (*hx >= 0.f) {
hdir = 0.f;
}
if (*hx < 0.f) {
hdir = 3.1415926535897932384626433832795;
}
} else if (dabs(*hy) > .001) {
if (*hy >= 0.f) {
hdir = 1.5707963267948966;
}
if (*hy < 0.f) {
hdir = -1.5707963267948966;
}
} else {
hdir = 0.f;
}
hdir2 = hdir + phi - *helm / 57.29577951308232087679815481410517;
/* ----------------------------------------------------------------------- */
/* !CALC CURRENTS */
/* !POSITION OF PSP FOR COIL I */
if (! at_sinq__) {
hdir2 += 1.5707963267948966;
/* ??? */
for (ic = 1; ic <= 3; ++ic) {
t_ih__[ic + 4] = cos(hdir2 + (ic - 1) * 2.f *
3.1415926535897932384626433832795 / 3.f) * hrad / c_ih__[
ic] / 1.5f;
}
t_ih__[8] = *hz / c_ih__[4];
} else {
t_ih__[5] = cos(hdir2) * hrad / c_ih__[1];
t_ih__[6] = sin(hdir2) * hrad / c_ih__[2];
t_ih__[7] = *hz / c_ih__[3];
}
/* ----------------------------------------------------------------------- */
L999:
return 0;
} /* helm_case__ */
/* Subroutine */ int flip_case__(integer *if1, integer *if2, real *t_ih__,
real *f1v, real *f1h, real *f2v, real *f2h, real *aki, real *akf,
integer *ier)
{
/* ==================== */
/* DEAL WITH FLIPPER COIL CALCULATIONS */
/* CALCULATE P_IF CURRENTS FOR THE TWO FLIPPERS */
/* ----------------------------------------------------------------------- */
/* Define the dummy arguments */
/* Part of T_CONV.FOR */
/* ----------------------------------------------------------------------- */
/* INIT AND TEST */
/* Parameter adjustments */
--t_ih__;
/* Function Body */
*ier = 0;
/* ----------------------------------------------------------------------- */
if (*if1 == 1) {
t_ih__[1] = *f1v;
t_ih__[2] = *aki * *f1h;
} else {
t_ih__[1] = 0.f;
t_ih__[2] = 0.f;
}
if (*if2 == 1) {
t_ih__[3] = *f2v;
t_ih__[4] = *akf * *f2h;
} else {
t_ih__[3] = 0.f;
t_ih__[4] = 0.f;
}
/* ----------------------------------------------------------------------- */
/* L999: */
return 0;
} /* flip_case__ */