C @(#)funct1i.for 17.1.1.1 (ES0-DMD) 01/25/02 17:10:47 C=========================================================================== C Copyright (C) 1995 European Southern Observatory (ESO) C C This program is free software; you can redistribute it and/or C modify it under the terms of the GNU General Public License as C published by the Free Software Foundation; either version 2 of C the License, or (at your option) any later version. C C This program is distributed in the hope that it will be useful, C but WITHOUT ANY WARRANTY; without even the implied warranty of C MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the C GNU General Public License for more details. C C You should have received a copy of the GNU General Public C License along with this program; if not, write to the Free C Software Foundation, Inc., 675 Massachusetss Ave, Cambridge, C MA 02139, USA. C C Corresponding concerning ESO-MIDAS should be addressed as follows: C Internet e-mail: midas@eso.org C Postal address: European Southern Observatory C Data Management Division C Karl-Schwarzschild-Strasse 2 C D 85748 Garching bei Muenchen C GERMANY C=========================================================================== C SUBROUTINE FUNC1I(NRPRM,PRM,FCT,PIXEL,WEIGHT,IDIM1,IDIM2,IDIM3) C+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ C C.MODULE C FIT C C.NAME C FUNCT1_I C C.PURPOSE C Function to compute the sum of residuals C for FIT/IMAG C C.KEYWORDS C Approximating Function. C C.DESCRIPTION C Read the TABLE row by row, and compute the fitting function by C calling MIDAS functions C C.LANGUAGE C FORTRAN C C.CALLING SEQUENCE C CALL FUNC1I(NRPRM,PRM,FCT,PIXEL,WEIGHT,IDIM1,IDIM2,IDIM3) C C.INPUT PARAMETERS C NRPRM INTEGER Number of parameters C PRM (NRPRM) DOUBLE Parameters C PIXEL (IDIM_) REAL pixel values of the image C WEIGHT (IDIM_) REAL weighting factors C IDIM_ INTEGER dimension of the 3-dim image. C C.MODIFIED PARAMETERS C none C C.OUTPUT PARAMETERS C FCT DOUBLE Sum of residuals C C.FILES C FIT_NAG.INC/NOLIST C C.MODULES CALLED C FTFUNC C C.AUTHOR C Ph. DEFERT, Feb 1986 C C.MODIFICATIONS C C C----------------------------------------------------------------------- C IMPLICIT NONE C .. C .. Scalar Arguments .. INTEGER NRPRM,IDIM1,IDIM2,IDIM3 DOUBLE PRECISION FCT C .. C .. Array Arguments .. DOUBLE PRECISION PRM(NRPRM) REAL PIXEL(IDIM1,IDIM2,IDIM3),WEIGHT(IDIM1,IDIM2,IDIM3) C .. C .. Scalars in Common .. INTEGER NRCOL,ISTAR CHARACTER WGTTYP*1 C .. C .. Arrays in Common .. INTEGER ICOL(10) C .. C .. Local Scalars .. DOUBLE PRECISION W,Y,Y1,YOUT,YY INTEGER IFUN,K,BEGFCT,I1,I2,I3,IP C .. C .. Local Arrays .. DOUBLE PRECISION DUMMY(10) REAL X(10) C .. C .. External Files .. INCLUDE 'MID_INCLUDE:FITNAGI.INC/NOLIST' INCLUDE 'MID_INCLUDE:FITNAGC.INC/NOLIST' C .. C .. Common blocks .. COMMON /LSQFUN/ICOL,NRCOL,ISTAR,WGTTYP C .. C .. Executable Statements .. C C deal with linear simple constraints C DO 10 K = 1,NRPRM IP = FIXPAR(K) IF (IP.GT.0) THEN PRM(K) = PRM(IP)*PRPFAC(K) PARAM(K) = PRM(K) END IF 10 CONTINUE C C Go through the image C X(1) = START(1) X(2) = START(2) X(3) = START(3) FCT = 0.D0 DO 50 I3 = 1,IDIM3 DO 40 I2 = 1,IDIM2 DO 30 I1 = 1,IDIM1 C C compute weights C Y = PIXEL(I1,I2,I3) IF (WGTTYP(1:1).EQ.'C') THEN W = 1. ELSE IF (WGTTYP(1:1).EQ.'W') THEN W = WEIGHT(I1,I2,I3) ELSE IF (WGTTYP(1:1).EQ.'S') THEN YY = ABS(Y) IF (YY.LT.1.E-12) THEN W = 1. ELSE W = 1./YY END IF ELSE IF (WGTTYP(1:1).EQ.'I') THEN W = 1./WEIGHT(I1,I2,I3)**2 END IF C C Compute fitting values C Y1 = 0.D0 BEGFCT = 1 DO 20 IFUN = 1,NRFUN CALL FTFUNC(FCTCOD(IFUN),NRIND,X,ACTPAR(IFUN), + PRM(BEGFCT),YOUT,DUMMY) Y1 = Y1 + YOUT BEGFCT = BEGFCT + ACTPAR(IFUN) 20 CONTINUE FCT = FCT + W* (Y1-Y)**2 X(1) = X(1) + STEP(1) 30 CONTINUE X(2) = X(2) + STEP(2) 40 CONTINUE X(3) = X(3) + STEP(3) 50 CONTINUE RETURN END