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SUBROUTINE ORDER (GPLST,ID,REST,GRIDS,IDTAB,LCOR,B1,B2,B3)
C
LOGICAL SPILL
INTEGER GRIDS(1),ID(1),IDTAB(2),TP,GPLST(1),IGRD(2),SCR4,
1 ISYM(14),ITYPE(14),HOLD(3),ELID,SILS(34),REST(2),
2 EST,SIL,SCR2,ECPT,B1,B2,B3,THREE(3),OFFSET
COMMON /BLANK / NGP,SKP(11),EST,SKIP1(3),SIL,SKIP2(5),ECPT,OES1,
1 SCR1,SCR2,NEWOES,SCR4
EQUIVALENCE (THREE(1),IFLAG),(THREE(2),NELMT),(THREE(3),IGDPT)
EQUIVALENCE (KQ4,ISYM(13)),(KT3,ISYM(14))
DATA ISYM / 2HSH,2HT1,2HTB,2HTP,2HTM,2HQP,2HQM,2HT2,2HQ2,2HQ1,
1 2HM1,2HM2,2HQ4,2HT3/ ,KBAR/2HBR/
DATA ITYPE / 4,6,7,8,9,15,16,17,18,19,62,63,64,83/
DATA NTYPE / 14 /
C
C BUILD A TABLE FOR GPECT POINTERS TO ELID AND ITS ORDERED GRID PTS
C
SPILL = .FALSE.
J = 1
I = 3
IDTAB(1) = 0
JSPILL = 1
LCORX = LCOR
NEWIN = SCR4
NEWOUT = SCR2
2 CALL READ (*130,*12,EST,TP,1,0,M)
OFFSET = 0
IF (TP .EQ. KBAR) OFFSET = 6
IF (TP.EQ.KT3 .OR. TP.EQ.KQ4) OFFSET = 1
3 CALL FREAD (EST,NGPPE,1,0)
IDTAB(I-1) = NGPPE
C
C SKIP PAST THE NON-CONTOUR ELEMENTS
C
DO 4 K = 1,NTYPE
IF (TP .EQ. ISYM(K)) GO TO 8
4 CONTINUE
6 CALL FREAD (EST,ELID,1,0)
IF (ELID .EQ. 0) GO TO 2
J = 1 + NGPPE + OFFSET
CALL FREAD (EST,0,-J,0)
GO TO 6
C
C CONSTRUCT IDTAB 1. 0, 2.NGPPE, 3.ELID, 4.ELIDPTR, 5.REPEAT. 3,4
C FOR ALL ELEMENTS OF THIS TYPE, 6.REPEAT 1-5 FOR ALL ELEMENTS IN
C THE SET. CONSTRUCT GRIDS 1-NGPPE. GRIDS FOR 1ST ELEMENT, NEXT.
C REPEAT 1ST FOR ALL ELEMENTS IN THE IDTAB
C
8 CALL READ (*12,*12,EST,IDTAB(I),2,0,M)
I = I + 2
IF (IDTAB(I-2) .NE. 0) GO TO 10
C
C END OF ELEMENTS OF THIS TYPE
C
TP = IDTAB(I-1)
GO TO 3
C
10 CALL FREAD (EST,GRIDS(J),NGPPE,0)
IF (OFFSET .NE. 0) CALL FREAD (EST,0,-OFFSET,0)
J = J + NGPPE
IF (I .GE. LCORX) GO TO 14
GO TO 8
C
C TABLE FIT INTO CORE
C
12 CALL BCKREC (EST)
GO TO 16
C
C SPILL OCCURS - TABLE DID NOT FIT
C
14 SPILL = .TRUE.
C
C END OF TABLE
C
16 LIDTAB = I - 1
IF (LIDTAB .LE. 2) GO TO (130,140), JSPILL
LGRIDS = J - 1
LASTNG = NGPPE
GO TO (18,140), JSPILL
18 CALL OPEN (*130,ECPT,GPLST(B2),0)
CALL GOPEN (SCR2,GPLST(B1),1)
CALL FWDREC (*120,ECPT)
IGDPT = 0
20 IGDPT = IGDPT + 1
IEOR = 0
IF (GPLST(IGDPT) .NE. 0) GO TO 25
CALL FWDREC (*120,ECPT)
GO TO 20
25 NELMT = 0
IFLAG =-1
C
C ECPT--1. PIVOT POINT, 2. DEG.FREEDOM, 3. -LENGTH, 4. ELID POINTER
C 5. ELTYPE, 6.SILS (THERE ARE (LENGTH-2) OF THEM), 7. REPEAT ITEMS
C (3-6) FOR ALL ELEMENTS ATTACHED TO PIVOT, 8. EOR, 9. REPEAT ITEMS
C (1-8) FOR ALL GRIDS IN THE PROBLEM.
C
CALL READ (*120,*120,ECPT,IGRD,2,0,M)
30 CALL READ (*120,*75,ECPT,LENGTH,1,0,M)
CALL FREAD (ECPT,SILS,-LENGTH,0)
TP = SILS(2)
DO 32 I = 1,NTYPE
IF (TP .EQ. ITYPE(I)) GO TO 33
32 CONTINUE
GO TO 30
C
C MATCH ELIDPTR WITH ITS ELID AND GRID POINTS IF POSSIBLE
C
33 J = 1
DO 50 I = 1,LIDTAB,2
IF (IDTAB(I)) 40,35,40
35 NGPPE = IDTAB(I+1)
GO TO 50
40 IF (IDTAB(I+1) .EQ. SILS(1)) GO TO 55
J = J + NGPPE
50 CONTINUE
C
C IF NOT IN THE TABLE, IS THERE SPILL(IE IS TABLE NOT COMPLETE).
C NO SPILL, SKIP HIM. YES SPILL, FLAG HIM.
C
IF (.NOT.SPILL) GO TO (30,145), JSPILL
ELID =-SILS(1)
NELMT = NELMT + 1
GO TO 70
C
C FOUND ELEMENT IN THE TABLE
C
55 ELID = IDTAB(I)
DO 60 I = 1,NGPPE
K = J + I - 1
IF (IGDPT .EQ. GRIDS(K)) GO TO 65
60 CONTINUE
65 IAFTER = I - (I/NGPPE)*NGPPE + J
IBEFOR = J + I - 2
IF (I .EQ. 1) IBEFOR = IBEFOR + NGPPE
NELMT = NELMT + 1
REST(2*NELMT-1) = GRIDS(IAFTER)
REST(2*NELMT ) = GRIDS(IBEFOR)
70 ID(NELMT) = ELID
IF (NELMT .LT. LCOR/2) GO TO (30,145), JSPILL
GO TO 80
75 IF (NELMT .EQ. 0) GO TO (20,140), JSPILL
IEOR = 1
C
C ORDER ELEMENTS IF WE HAVE REACHED END OF EST FILE
C
80 IF (SPILL) GO TO 112
IF (NELMT .LE.2) GO TO 110
INDEX = 3
IALL = 2*NELMT
IONE = REST(1)
ITWO = REST(2)
85 IF (IONE .EQ. ITWO) GO TO 105
DO 90 I = INDEX,IALL,2
IF (ITWO .EQ. REST(I)) GO TO 95
90 CONTINUE
GO TO 110
95 IF (I .EQ. INDEX) GO TO 100
J = (INDEX+1)/2
K = (I+1)/2
HOLD(1) = ID(J)
ID(J) = ID(K)
ID(K) = HOLD(1)
HOLD(2) = REST(INDEX )
HOLD(3) = REST(INDEX+1)
REST(INDEX ) = REST(I )
REST(INDEX+1) = REST(I+1)
REST(I ) = HOLD(2)
REST(I+1) = HOLD(3)
100 INDEX = INDEX + 2
ITWO = REST(INDEX-1)
IF (INDEX .LT. IALL) GO TO 85
IF (IONE .NE. ITWO) GO TO 110
C
C INTERIOR ELEMENTS
C
105 CALL WRITE (NEWOUT,THREE,3,0)
CALL WRITE (NEWOUT,ID,NELMT,1)
IF (IGDPT .LT. NGP) GO TO (20,140), JSPILL
GO TO 120
C
C BORDER ELEMENTS
C
110 IFLAG = -2
112 CALL WRITE (NEWOUT,THREE,3,0)
J = -1
DO 115 I = 1,NELMT
J = J + 2
CALL WRITE (NEWOUT,ID(I),1,0)
CALL WRITE (NEWOUT,REST(J),2,0)
115 CONTINUE
IQ = 2*NELMT
CALL WRITE (NEWOUT,0,0,1)
GO TO (118,140), JSPILL
118 IF (IEOR) 25,25,119
119 IF (IGDPT .LT.NGP) GO TO 20
120 CALL CLOSE (ECPT,1)
125 CALL WRITE (NEWOUT,0,1,1)
CALL CLOSE (NEWOUT,1)
C
C IF NO SPILL - RETURN
C
130 IF (.NOT.SPILL) GO TO 170
C
C COME HERE IF WE HAVE SPILL
C
I = NEWOUT
NEWOUT = NEWIN
NEWIN = I
CALL GOPEN (NEWIN,GPLST(B1),0)
CALL GOPEN (NEWOUT,GPLST(B2),1)
JSPILL = 2
NGPPE = LASTNG
IDTAB(1) = 0
IDTAB(2) = LASTNG
I = 3
J = 1
SPILL = .FALSE.
GO TO 8
C
C TABLE CONSTRUCTED SO RETURN HERE
C
140 CALL READ (*160,*160,NEWIN,THREE,3,0,M)
NELMT = 0
145 CALL READ (*160,*75,NEWIN,SILS(1),3,0,M)
IF (SILS(1)) 150,150,155
150 SILS(1) = -SILS(1)
GO TO 33
155 ELID = SILS(1)
NELMT = NELMT + 1
REST(2*NELMT-1) = SILS(2)
REST(2*NELMT ) = SILS(3)
GO TO 70
C
C END OF FILE
C
160 CALL CLOSE (NEWIN,1)
GO TO 125
C
C OUTPUT FILE MUST BE SCRATCH 2
C
170 IF (NEWOUT .EQ. SCR2) RETURN
CALL GOPEN (NEWOUT,GPLST(B1),0)
CALL GOPEN (SCR2,GPLST(B2),1)
CALL CPYFIL (NEWOUT,SCR2,REST,LCOR,M)
CALL CLOSE (SCR2,1)
CALL CLOSE (NEWOUT,1)
RETURN
END
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