SUBROUTINE W3NOGDS(ITYPE,FLD,IFLD,IBITL, & IPFLAG,ID,PDS, & IGFLAG,IGRID,IGDS,ICOMP, & IBFLAG,IBMAP,IBLEN,IBDSFL, & NPTS,KBUF,ITOT,JERR) C$$$ SUBPROGRAM DOCUMENTATION BLOCK C . . . . C SUBPROGRAM: W3NOGDS MAKE A COMPLETE GRIB MESSAGE C PRGMMR: FARLEY ORG: NMC421 DATE:94-11-22 C C ABSTRACT: MAKES A COMPLETE GRIB MESSAGE FROM A USER SUPPLIED C ARRAY OF FLOATING POINT OR INTEGER DATA. THE USER HAS THE C OPTION OF SUPPLYING THE PDS OR AN INTEGER ARRAY THAT WILL BE C USED TO CREATE A PDS (WITH W3FI68). THE USER MUST ALSO C SUPPLY OTHER NECESSARY INFO; SEE USAGE SECTION BELOW. C C PROGRAM HISTORY LOG: C 97-02-24 M. FARLEY MODIFIED W3FI72 - this routine allows for C NO GDS (errors in W3FI71 for GRIB grids C 21-26, 61-64 forced the need for this routine). C 98-06-24 Gilbert Added number of gridpoint values for grids C 61-64, needed when igflag=2 ( no gds ). C 98-12-21 Gilbert Replaced Function ICHAR with mova2i. C C USAGE: CALL W3NOGDS(ITYPE,FLD,IFLD,IBITL, C & IPFLAG,ID,PDS, C & IGFLAG,IGRID,IGDS,ICOMP, C & IBFLAG,IBMAP,IBLEN,IBDSFL, C & IBDSFL, C & NPTS,KBUF,ITOT,JERR) C C INPUT ARGUMENT LIST: C ITYPE - 0 = FLOATING POINT DATA SUPPLIED IN ARRAY 'FLD' C 1 = INTEGER DATA SUPPLIED IN ARRAY 'IFLD' C FLD - REAL ARRAY OF DATA (AT PROPER GRIDPOINTS) TO BE C CONVERTED TO GRIB FORMAT IF ITYPE=0. C SEE REMARKS #1 & 2. C IFLD - INTEGER ARRAY OF DATA (AT PROPER GRIDPOINTS) TO BE C CONVERTED TO GRIB FORMAT IF ITYPE=1. C SEE REMARKS #1 & 2. C IBITL - 0 = COMPUTER COMPUTES LENGTH FOR PACKING DATA FROM C POWER OF 2 (NUMBER OF BITS) BEST FIT OF DATA C USING 'VARIABLE' BIT PACKER W3FI58. C 8, 12, ETC. COMPUTER RESCALES DATA TO FIT INTO THAT C 'FIXED' NUMBER OF BITS USING W3FI59. C SEE REMARKS #3. C C IPFLAG - 0 = MAKE PDS FROM USER SUPPLIED ARRAY (ID) C 1 = USER SUPPLYING PDS C NOTE: IF PDS IS GREATER THAN 30, USE IPLFAG=1. C THE USER COULD CALL W3FI68 BEFORE HE CALLS C W3NOGDS. THIS WOULD MAKE THE FIRST 30 BYTES OF C THE PDS, USER THEN WOULD MAKE BYTES AFTER 30. C ID - INTEGER ARRAY OF VALUES THAT W3FI68 WILL USE C TO MAKE AN EDITION 1 PDS IF IPFLAG=0. (SEE THE C DOCBLOCK FOR W3FI68 FOR LAYOUT OF ARRAY) C PDS - CHARACTER ARRAY OF VALUES (VALID PDS SUPPLIED C BY USER) IF IPFLAG=1. LENGTH MAY EXCEED 28 BYTES C (CONTENTS OF BYTES BEYOND 28 ARE PASSED C THROUGH UNCHANGED). C C IGFLAG - 0 = MAKE GDS BASED ON 'IGRID' VALUE. C 1 = MAKE GDS FROM USER SUPPLIED INFO IN 'IGDS' C AND 'IGRID' VALUE. C SEE REMARKS #4. C 2 = NO GDS WILL BE INCLUDED...for international grids C *** THIS IS AN EXCEPTION TO REMARKS #4!!!! C IGRID - # = GRID IDENTIFICATION (TABLE B) C 255 = IF USER DEFINED GRID; IGDS MUST BE SUPPLIED C AND IGFLAG MUST =1. C IGDS - INTEGER ARRAY CONTAINING USER GDS INFO (SAME C FORMAT AS SUPPLIED BY W3FI71 - SEE DOCKBLOCK FOR C LAYOUT) IF IGFLAG=1. C ICOMP - RESOLUTION AND COMPONENT FLAG FOR BIT 5 OF GDS(17) C 0 = EARTH ORIENTED WINDS C 1 = GRID ORIENTED WINDS C C IBFLAG - 0 = MAKE BIT MAP FROM USER SUPPLIED DATA C # = BIT MAP PREDEFINED BY CENTER C SEE REMARKS #5. C IBMAP - INTEGER ARRAY CONTAINING BIT MAP C IBLEN - LENGTH OF BIT MAP WILL BE USED TO VERIFY LENGTH C OF FIELD (ERROR IF IT DOESN'T MATCH). C C IBDSFL - INTEGER ARRAY CONTAINING TABLE 11 FLAG INFO C BDS OCTET 4: C (1) 0 = GRID POINT DATA C 1 = SPHERICAL HARMONIC COEFFICIENTS C (2) 0 = SIMPLE PACKING C 1 = SECOND ORDER PACKING C (3) ... SAME VALUE AS 'ITYPE' C 0 = ORIGINAL DATA WERE FLOATING POINT VALUES C 1 = ORIGINAL DATA WERE INTEGER VALUES C (4) 0 = NO ADDITIONAL FLAGS AT OCTET 14 C 1 = OCTET 14 CONTAINS FLAG BITS 5-12 C (5) 0 = RESERVED - ALWAYS SET TO 0 C BYTE 6 OPTION 1 NOT AVAILABLE (AS OF 5-16-93) C (6) 0 = SINGLE DATUM AT EACH GRID POINT C 1 = MATRIX OF VALUES AT EACH GRID POINT C BYTE 7 OPTION 0 WITH SECOND ORDER PACKING N/A (AS OF 5-16-93) C (7) 0 = NO SECONDARY BIT MAPS C 1 = SECONDARY BIT MAPS PRESENT C (8) 0 = SECOND ORDER VALUES HAVE CONSTANT WIDTH C 1 = SECOND ORDER VALUES HAVE DIFFERENT WIDTHS C C OUTPUT ARGUMENT LIST: C NPTS - NUMBER OF GRIDPOINTS IN ARRAY FLD OR IFLD C KBUF - ENTIRE GRIB MESSAGE ('GRIB' TO '7777') C EQUIVALENCE TO INTEGER ARRAY TO MAKE SURE IT C IS ON WORD BOUNARY. C ITOT - TOTAL LENGTH OF GRIB MESSAGE IN BYTES C JERR - = 0, COMPLETED MAKING GRIB FIELD WITHOUT ERROR C 1, IPFLAG NOT 0 OR 1 C 2, IGFLAG NOT 0 OR 1 OR 2 C 3, ERROR CONVERTING IEEE F.P. NUMBER TO IBM370 F.P. C 4, W3FI71 ERROR/IGRID NOT DEFINED C 5, W3FK74 ERROR/GRID REPRESENTATION TYPE NOT VALID C 6, GRID TOO LARGE FOR PACKER DIMENSION ARRAYS C SEE AUTOMATION DIVISION FOR REVISION! C 7, LENGTH OF BIT MAP NOT EQUAL TO SIZE OF FLD/IFLD C 8, W3FI73 ERROR, ALL VALUES IN IBMAP ARE ZERO C C OUTPUT FILES: C FT06F001 - STANDARD FORTRAN OUTPUT PRINT FILE C C SUBPROGRAMS CALLED: C LIBRARY: C W3LIB - W3FI58, W3FI59, W3FI68, W3FI71, W3FI73, W3FI74 C W3FI75, W3FI76, W3FI01 C C REMARKS: C 1) IF BIT MAP TO BE INCLUDED IN MESSAGE, NULL DATA SHOULD C BE INCLUDED IN FLD OR IFLD. THIS ROUTINE WILL TAKE CARE C OF 'DISCARDING' ANY NULL DATA BASED ON THE BIT MAP. C 2) UNITS MUST BE THOSE IN GRIB DOCUMENTATION: NMC O.N. 388 C OR WMO PUBLICATION 306. C 3) IN EITHER CASE, INPUT NUMBERS WILL BE MULTIPLIED BY C '10 TO THE NTH' POWER FOUND IN ID(25) OR PDS(27-28), C THE D-SCALING FACTOR, PRIOR TO BINARY PACKING. C 4) ALL NMC PRODUCED GRIB FIELDS WILL HAVE A GRID DEFINITION C SECTION INCLUDED IN THE GRIB MESSAGE. ID(6) WILL BE C SET TO '1'. C - GDS WILL BE BUILT BASED ON GRID NUMBER (IGRID), UNLESS C IGFLAG=1 (USER SUPPLYING IGDS). USER MUST STILL SUPPLY C IGRID EVEN IF IGDS PROVIDED. C 5) IF BIT MAP USED THEN ID(7) OR PDS(8) MUST INDICATE THE C PRESENCE OF A BIT MAP. C 6) ARRAY KBUF SHOULD BE EQUIVALENCED TO AN INTEGER VALUE OR C ARRAY TO MAKE SURE IT IS ON A WORD BOUNDARY. C 7) SUBPROGRAM CAN BE CALLED FROM A MULTIPROCESSING ENVIRONMENT. C C ATTRIBUTES: C LANGUAGE: CRAY CFT77 FORTRAN C MACHINE: CRAY C916/256, Y-MP8/864, Y-MP EL92/256, J916/2048 C C$$$ C PARAMETER (MXSIZE=260000) C ALLOW UP TO 24 BITS PER POINT PARAMETER (MXSIZ3=MXSIZE*3) PARAMETER (MXSIZB=MXSIZE/8+6) C FOR 64 BIT CRAY PARAMETER (MXSIZI=MXSIZ3/8) C FOR 32 BIT WORKSTATIONS AND HDS C PARAMETER (MXSIZI=MXSIZ3/4) C REAL FLD(*) C INTEGER IBDSFL(*) INTEGER IBMAP(*) INTEGER ID(*) INTEGER IFLD(*) INTEGER IGDS(*) INTEGER IPFLD(MXSIZI) INTEGER IB(4) C CHARACTER * 1 BDS11(11) CHARACTER * 1 KBUF(*) CHARACTER * 1 PDS(*) CHARACTER * 1 GDS(200) CHARACTER * 1 BMS(MXSIZB) CHARACTER * 1 PFLD(MXSIZ3) CHARACTER * 1 SEVEN CHARACTER * 1 ZERO C EQUIVALENCE (IPFLD(1),PFLD(1)) EQUIVALENCE (BDS11(1),IDUMMY) C C ASCII REP OF /'G', 'R', 'I', 'B'/ C DATA IB / 71, 82, 73, 66/ C IER = 0 IBERR = 0 JERR = 0 IGRIBL = 8 IPDSL = 0 LENGDS = 0 LENBMS = 0 LENBDS = 0 ITOSS = 0 C C$ 1.0 PRODUCT DEFINITION SECTION(PDS). C C SET ID(6) TO 1 ...OR... MODIFY PDS(8) ... C REGARDLESS OF USER SPECIFICATION... C NMC GRIB FIELDS WILL ALWAYS HAVE A GDS C ***** exception for international GRIB GRIDS 21-26, 61-64 C ***** which will NOT contain a GDS until subroutine W3FI71 is fixed! C IF (IPFLAG .EQ.0) THEN ID(6) = 1 if (igflag .eq. 2) then id(6) = 0 endif CALL W3FI68(ID,PDS) ELSE IF (IPFLAG .EQ. 1) THEN IF (IAND(mova2i(PDS(8)),64) .EQ. 64) THEN C BOTH GDS AND BMS PDS(8) = CHAR(192) ELSE IF (mova2i(PDS(8)) .EQ. 0) THEN C GDS ONLY PDS(8) = CHAR(128) END IF CONTINUE ELSE C PRINT *,' W3NOGDS ERROR, IPFLAG IS NOT 0 OR 1 IPFLAG = ',IPFLAG JERR = 1 GO TO 900 END IF C C GET LENGTH OF PDS C IPDSL = mova2i(PDS(1)) * 65536 + mova2i(PDS(2)) * 256 + & mova2i(PDS(3)) C C$ 2.0 GRID DEFINITION SECTION (GDS). C C IF IGFLAG=1 THEN USER IS SUPPLYING THE IGDS INFORMATION C IF IGFLAG=2 THEN USER doesn't want a GDS and this section C will be skipped...LENGDS=0 C IF (IGFLAG .EQ. 0) THEN CALL W3FI71(IGRID,IGDS,IGERR) IF (IGERR .EQ. 1) THEN C PRINT *,' W3FI71 ERROR, GRID TYPE NOT DEFINED...',IGRID JERR = 4 GO TO 900 END IF END IF IF (IGFLAG .EQ. 0 .OR. IGFLAG .EQ.1) THEN CALL W3FI74(IGDS,ICOMP,GDS,LENGDS,NPTS,IGERR) IF (IGERR .EQ. 1) THEN C PRINT *,' W3FI74 ERROR, GRID REP TYPE NOT VALID...',IGDS(3) JERR = 5 GO TO 900 ELSE END IF IF (NPTS .GT. MXSIZE) THEN C PRINT *,' W3NOGDS ERROR, GRID TOO LARGE FOR PACKER ARRAY', C & ' DIMENSIONS' JERR = 6 GO TO 900 END IF else if (igflag .eq. 2) then lengds = 0 if (igrid.eq.21) then npts=1333 else if (igrid.eq.22) then npts=1333 else if (igrid.eq.23) then npts=1333 else if (igrid.eq.24) then npts=1333 else if (igrid.eq.25) then npts=1297 else if (igrid.eq.26) then npts=1297 else if ((igrid.ge.61).and.(igrid.le.64)) then npts=4096 end if ELSE C PRINT *,' W3NOGDS ERROR, IGFLAG IS NOT 0-2 IGFLAG = ',IGFLAG GO TO 900 END IF C C$ 3.0 BIT MAP SECTION (BMS). C C SET ITOSS=1 IF BITMAP BEING USED. W3FI75 WILL TOSS DATA C PRIOR TO PACKING. LATER CODING WILL BE NEEDED WHEN THE C 'PREDEFINED' GRIDS ARE FINALLY 'DEFINED'. C IF (mova2i(PDS(8)) .EQ. 64 .OR. & mova2i(PDS(8)) .EQ. 192) THEN ITOSS = 1 IF (IBFLAG .EQ. 0) THEN IF (IBLEN .NE. NPTS) THEN C PRINT *,' W3NOGDS ERROR, IBLEN .NE. NPTS = ',IBLEN,NPTS JERR = 7 GO TO 900 END IF CALL W3FI73(IBFLAG,IBMAP,IBLEN,BMS,LENBMS,IER) IF (IER .NE. 0) THEN C PRINT *,' W3FI73 ERROR, IBMAP VALUES ARE ALL ZERO' JERR = 8 GO TO 900 END IF ELSE C PRINT *,' BIT MAP PREDEFINED BY CENTER, IBFLAG = ',IBFLAG END IF END IF C C$ 4.0 BINARY DATA SECTION (BDS). C C$ 4.1 SCALE THE DATA WITH D-SCALE FROM PDS(27-28) C JSCALE = mova2i(PDS(27)) * 256 + mova2i(PDS(28)) IF (IAND(JSCALE,32768).NE.0) THEN JSCALE = - IAND(JSCALE,32767) END IF SCALE = 10.0 ** JSCALE IF (ITYPE .EQ. 0) THEN DO 410 I = 1,NPTS FLD(I) = FLD(I) * SCALE 410 CONTINUE ELSE DO 411 I = 1,NPTS IFLD(I) = NINT(FLOAT(IFLD(I)) * SCALE) 411 CONTINUE END IF C C$ 4.2 CALL W3FI75 TO PACK DATA AND MAKE BDS. C CALL W3FI75(IBITL,ITYPE,ITOSS,FLD,IFLD,IBMAP,IBDSFL, & NPTS,BDS11,IPFLD,PFLD,LEN,LENBDS,IBERR,PDS,IGDS) IF (IBERR .EQ. 1) THEN JERR = 3 GO TO 900 END IF C 4.3 IF D-SCALE NOT 0, RESCALE INPUT FIELD TO C ORIGINAL VALUE C IF (JSCALE.NE.0) THEN DSCALE = 1.0 / SCALE IF (ITYPE.EQ.0) THEN DO 412 I = 1, NPTS FLD(I) = FLD(I) * DSCALE 412 CONTINUE ELSE DO 413 I = 1, NPTS FLD(I) = NINT(FLOAT(IFLD(I)) * DSCALE) 413 CONTINUE END IF END IF C C$ 5.0 OUTPUT SECTION. C C$ 5.1 ZERO OUT THE OUTPUT ARRAY KBUF. C ZERO = CHAR(00) ITOT = IGRIBL + IPDSL + LENGDS + LENBMS + LENBDS + 4 C PRINT *,'IGRIBL =',IGRIBL C PRINT *,'IPDSL =',IPDSL C PRINT *,'LENGDS =',LENGDS C PRINT *,'LENBMS =',LENBMS C PRINT *,'LENBDS =',LENBDS C PRINT *,'ITOT =',ITOT C C KBUF MUST BE ON A WORD BOUNDRY, EQUIVALENCE TO AN C INTEGER ARRAY IN THE MAIN PROGRAM TO MAKE SURE IT IS. C THIS IS BOTH COMPUTER AND COMPILER DEPENDENT, W3FI01 C IS USED TO FILL OUT IF THE COMPUTER IS A 64 BIT OR C 32 BIT WORD SIZE COMPUTER. LW IS SET TO 4 FOR 32 BIT C COMPUTER, 8 FOR 64 BIT COMPUTER. C CALL W3FI01(LW) IWORDS = ITOT / LW CALL XSTORE(KBUF,0,IWORDS) IF (MOD(ITOT,LW).NE.0) THEN IBYTES = ITOT - IWORDS * LW DO 510 I = 1,IBYTES KBUF(IWORDS * LW + I) = ZERO 510 CONTINUE END IF C C$ 5.2 MOVE SECTION 0 - 'IS' INTO KBUF (8 BYTES). C ISTART = 0 DO 520 I = 1,4 KBUF(I) = CHAR(IB(I)) 520 CONTINUE C KBUF(5) = CHAR(MOD(ITOT / 65536,256)) KBUF(6) = CHAR(MOD(ITOT / 256,256)) KBUF(7) = CHAR(MOD(ITOT ,256)) KBUF(8) = CHAR(1) C C$ 5.3 MOVE SECTION 1 - 'PDS' INTO KBUF (28 BYTES). C ISTART = ISTART + IGRIBL IF (IPDSL.GT.0) THEN CALL XMOVEX(KBUF(ISTART+1),PDS,IPDSL) ELSE C PRINT *,'LENGTH OF PDS LESS OR EQUAL 0, IPDSL = ',IPDSL END IF C C$ 5.4 MOVE SECTION 2 - 'GDS' INTO KBUF. C ISTART = ISTART + IPDSL IF (LENGDS .GT. 0) THEN CALL XMOVEX(KBUF(ISTART+1),GDS,LENGDS) END IF C C$ 5.5 MOVE SECTION 3 - 'BMS' INTO KBUF. C ISTART = ISTART + LENGDS IF (LENBMS .GT. 0) THEN CALL XMOVEX(KBUF(ISTART+1),BMS,LENBMS) END IF C C$ 5.6 MOVE SECTION 4 - 'BDS' INTO KBUF. C C$ MOVE THE FIRST 11 OCTETS OF THE BDS INTO KBUF. C ISTART = ISTART + LENBMS CALL XMOVEX(KBUF(ISTART+1),BDS11,11) C C$ MOVE THE PACKED DATA INTO THE KBUF C ISTART = ISTART + 11 IF (LEN.GT.0) THEN CALL XMOVEX(KBUF(ISTART+1),PFLD,LEN) END IF C C$ ADD '7777' TO END OFF KBUF C NOTE THAT THESE 4 OCTETS NOT INCLUDED IN ACTUAL SIZE OF BDS. C SEVEN = CHAR(55) ISTART = ITOT - 4 DO 562 I = 1,4 KBUF(ISTART+I) = SEVEN 562 CONTINUE C 900 CONTINUE RETURN END