You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
171 lines
5.4 KiB
171 lines
5.4 KiB
2 years ago
|
C Copyright(C) 1999-2020 National Technology & Engineering Solutions
|
||
|
|
C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
|
||
|
|
C NTESS, the U.S. Government retains certain rights in this software.
|
||
|
|
C
|
||
|
|
C See packages/seacas/LICENSE for details
|
||
|
|
|
||
|
|
SUBROUTINE FILSMO (MXND, MLN, XN, YN, ZN, LXK, KXL, NXL, LXN,
|
||
|
|
& LLL, NNN, NNN2, LNODES, BNSIZE, NLOOP, XMIN, XMAX, YMIN, YMAX,
|
||
|
|
& ZMIN, ZMAX, DEV1, KREG)
|
||
|
|
C***********************************************************************
|
||
|
|
|
||
|
|
C SUBROUTINE FILSMO = MESH SMOOTHING DONE BY ISOPARAMETRIC/EQUAL
|
||
|
|
C ANGULAR SMOOTHING OF THE ADDED INTERIOR (FREE)
|
||
|
|
C BOUNDARY ROW AND THEN A LENGTH-WEIGHTED/EQUAL
|
||
|
|
C ANGULAR BOUNDARY LAPLACIAN OF THE INTERIOR NODES.
|
||
|
|
C THE FREE BOUNDARY IS FINALLY SMOOTHED AGAIN.
|
||
|
|
|
||
|
|
C***********************************************************************
|
||
|
|
|
||
|
|
C VARIABLES USED:
|
||
|
|
C WFAC = WEIGHT (0. = LAPLACIAN, 1. = ISOPARAMETRIC)
|
||
|
|
C NIT = THE MAX NUMBER OF ITERATIONS TO DO.
|
||
|
|
C EPS = MINIMUM DISTANCE NODES MUST MOVE TO CONTINUE ITERATIONS
|
||
|
|
C RO = AN UNDER- OR OVER-RELAXATION FACTOR (NORMALLY 1.0)
|
||
|
|
|
||
|
|
C***********************************************************************
|
||
|
|
|
||
|
|
COMMON /TIMING/ TIMEA, TIMEP, TIMEC, TIMEPC, TIMEAJ, TIMES
|
||
|
|
|
||
|
|
DIMENSION XN(MXND), YN(MXND), ZN(MXND)
|
||
|
|
DIMENSION LXN(4, MXND), NXL(2, 3*MXND)
|
||
|
|
DIMENSION LXK(4, MXND), KXL(2, 3*MXND)
|
||
|
|
DIMENSION LINES(20), LNODES (MLN, MXND), BNSIZE (2, MXND)
|
||
|
|
|
||
|
|
LOGICAL BIG, ERR, GRAPH, DONE
|
||
|
|
|
||
|
|
CHARACTER*3 DEV1
|
||
|
|
|
||
|
|
CALL GETIME (TIME1)
|
||
|
|
GRAPH = .FALSE.
|
||
|
|
DONE = .FALSE.
|
||
|
|
WT = 10.
|
||
|
|
|
||
|
|
NIT = MAX0 (5 * NLOOP, 40)
|
||
|
|
TOL = .03
|
||
|
|
VRO = 1.
|
||
|
|
RO = 1.
|
||
|
|
WFAC = 1.0
|
||
|
|
WFAC2 = .5
|
||
|
|
CALL MNORM (MXND, XN, YN, NXL, LLL, STDLEN)
|
||
|
|
EPS = TOL * STDLEN
|
||
|
|
IF (RO .LT. 0.01) RO = 1.
|
||
|
|
EPS2 = (EPS * RO)**2
|
||
|
|
|
||
|
|
C FIRST SMOOTH THE ADDED ROW
|
||
|
|
|
||
|
|
IF (NLOOP .GT. 0) THEN
|
||
|
|
CALL ROWSMO (MXND, MLN, XN, YN, ZN, LXK, KXL, NXL, LXN, NNN,
|
||
|
|
& WFAC, WFAC2, NIT, EPS, RO, NNN2, LNODES, BNSIZE, LLL,
|
||
|
|
& GRAPH, XMIN, XMAX, YMIN, YMAX, ZMIN, ZMAX, DEV1, KREG)
|
||
|
|
ENDIF
|
||
|
|
|
||
|
|
C NOW SMOOTH THE INTERIOR NODES
|
||
|
|
|
||
|
|
C ITERATION LOOP
|
||
|
|
|
||
|
|
DO 140 IT = 1, NIT
|
||
|
|
BIG = .FALSE.
|
||
|
|
|
||
|
|
C NODE LOOP
|
||
|
|
|
||
|
|
DO 130 NODE = 1, NNN
|
||
|
|
IF ( (LXN (1, NODE) .GT. 0) .AND.
|
||
|
|
& (LXN (2, NODE) .GT. 0) .AND.
|
||
|
|
& (LNODES (4, NODE) .EQ. - 2) ) THEN
|
||
|
|
DONE = .TRUE.
|
||
|
|
FX = 0.
|
||
|
|
FY = 0.
|
||
|
|
SL = 0.
|
||
|
|
VL = 0.
|
||
|
|
|
||
|
|
C LOOP THROUGH ALL LINES CONNECTED TO NODE
|
||
|
|
|
||
|
|
CALL GETLXN (MXND, LXN, NODE, LINES, KOUNT, ERR)
|
||
|
|
IF (ERR) GOTO 150
|
||
|
|
DO 100 IL = 1, KOUNT
|
||
|
|
L = LINES (IL)
|
||
|
|
NEND = NXL (1, L) + NXL (2, L) - NODE
|
||
|
|
DX = XN (NEND) - XN (NODE)
|
||
|
|
DY = YN (NEND) - YN (NODE)
|
||
|
|
AL = SQRT (DX * DX + DY * DY)
|
||
|
|
|
||
|
|
C CHECK FOR A BOUNDARY NODE AT THE OTHER END
|
||
|
|
C OF THE LINE - TRY TO AVERAGE ANGULAR ERRORS WITH THE BOUNDARY WHERE
|
||
|
|
C POSSIBLE - THIS MEANS ADDING IN AN EXTRA VECTOR TO PULL THE NODE
|
||
|
|
C BACK TO WHERE IT OUGHT TO BE TO BE AT EQUAL ANGLES
|
||
|
|
|
||
|
|
IF (LXN (2, NEND) .LT. 0) THEN
|
||
|
|
CALL SETN02 (MXND, NXL, LXK, KXL, L, NEND, NODE,
|
||
|
|
& N0, N2)
|
||
|
|
CALL EQLANG (MXND, XN, YN, LXN, NODE, N0, N2,
|
||
|
|
& NEND, AL, VRO, VXDEL, VYDEL)
|
||
|
|
VL = SQRT (VXDEL * VXDEL + VYDEL * VYDEL)
|
||
|
|
FX = FX + (VXDEL * WT * VL)
|
||
|
|
FY = FY + (VYDEL * WT * VL)
|
||
|
|
SL = SL + VL * WT
|
||
|
|
ENDIF
|
||
|
|
FX = FX + DX * AL
|
||
|
|
FY = FY + DY * AL
|
||
|
|
SL = SL + AL
|
||
|
|
100 CONTINUE
|
||
|
|
|
||
|
|
C MOVE THE NODE
|
||
|
|
|
||
|
|
DELX = RO * FX/SL
|
||
|
|
DELY = RO * FY/SL
|
||
|
|
|
||
|
|
C ERASE THE NODE'S LINES IF GRAPH IS ON
|
||
|
|
|
||
|
|
IF (GRAPH) THEN
|
||
|
|
CALL LCOLOR('BLACK')
|
||
|
|
DO 110 II = 1, KOUNT
|
||
|
|
IDRAW = LINES(II)
|
||
|
|
NODE1 = NXL (1, IDRAW)
|
||
|
|
NODE2 = NXL (2, IDRAW)
|
||
|
|
CALL D2NODE (MXND, XN, YN, NODE1, NODE2)
|
||
|
|
110 CONTINUE
|
||
|
|
CALL LCOLOR ('WHITE')
|
||
|
|
ENDIF
|
||
|
|
|
||
|
|
XN (NODE) = XN (NODE)+DELX
|
||
|
|
YN (NODE) = YN (NODE)+DELY
|
||
|
|
|
||
|
|
C REPLOT THE NODE'S LINES IF GRAPH IS ON
|
||
|
|
|
||
|
|
IF (GRAPH) THEN
|
||
|
|
DO 120 II = 1, KOUNT
|
||
|
|
IDRAW = LINES(II)
|
||
|
|
NODE1 = NXL (1, IDRAW)
|
||
|
|
NODE2 = NXL (2, IDRAW)
|
||
|
|
CALL D2NODE (MXND, XN, YN, NODE1, NODE2)
|
||
|
|
120 CONTINUE
|
||
|
|
CALL SFLUSH
|
||
|
|
ENDIF
|
||
|
|
IF (DELX ** 2 + DELY ** 2 .GT. EPS2) BIG = .TRUE.
|
||
|
|
ENDIF
|
||
|
|
130 CONTINUE
|
||
|
|
IF (.NOT.BIG) GOTO 150
|
||
|
|
140 CONTINUE
|
||
|
|
150 CONTINUE
|
||
|
|
|
||
|
|
C NOW RESMOOTH THE ADDED ROW IF THE MESH HAS CHANGED INTERNALLY
|
||
|
|
|
||
|
|
IF ((NLOOP .GT. 0) .AND. (DONE)) THEN
|
||
|
|
CALL ROWSMO (MXND, MLN, XN, YN, ZN, LXK, KXL, NXL, LXN, NNN,
|
||
|
|
& WFAC, WFAC2, NIT, EPS, RO, NNN2, LNODES, BNSIZE, LLL,
|
||
|
|
& GRAPH, XMIN, XMAX, YMIN, YMAX, ZMIN, ZMAX, DEV1, KREG)
|
||
|
|
ENDIF
|
||
|
|
|
||
|
|
C NOW RESET ALL THE NODES AS BEING SMOOTHED
|
||
|
|
|
||
|
|
DO 160 I = 1, NNN
|
||
|
|
LNODES (4, I) = IABS (LNODES (4, I))
|
||
|
|
160 CONTINUE
|
||
|
|
|
||
|
|
CALL GETIME (TIME2)
|
||
|
|
TIMES = TIMES + TIME2 - TIME1
|
||
|
|
RETURN
|
||
|
|
|
||
|
|
END
|