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175 lines
6.2 KiB
175 lines
6.2 KiB
2 years ago
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C Copyright(C) 1999-2020 National Technology & Engineering Solutions
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C of Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
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C NTESS, the U.S. Government retains certain rights in this software.
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C
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C See packages/seacas/LICENSE for details
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SUBROUTINE SRCHS (
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* NPSRF, NFSRF, LINKSRF, XYZSRF,
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* NPTS, XYZPTS, TOLSRCH,
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* NISR, NRSR, NISS, NRSS, ISRCHR, RSRCHR, LBLK,
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* LIST, IND, IRNK, IRNK2, INDX, ILO, IUP,
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* IDP, IDS, XMIN, XMAX, ISCR, RSCR, IERR )
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C-----------------------------------------------------------------------
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C DESCRIPTION:
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C THIS SUBROUTINE CALCULATES THE CLOSEST POINT PROBLEM
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C BETWEEN NPTS POINTS AND NFSRF SURFACES AND RETURNS RESULTS OF
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C SEARCH IN ISRCHR,RSRCHR
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C USED HERE FOR FINDING LOCATION OF EITHER NODE OR ELEMENT CENTROID
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C FROM MESH-B IN SHELL ELEMENT OF MESH-A
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C-----------------------------------------------------------------------
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C FORMAL PARAMETERS
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C MEMORY : P=PERMANENT, S=SCRATCH
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C NAME : IMPLICIT A-H,O-Z REAL, I-N INTEGER
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C TYPE : INPUT_STATUS/OUTPUT_STATUS (I=INPUT,O=OUTPUT,P=PASSED,
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C U=UNMODIFIED,-=UNDEFINED)
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C DESCRIPTION : DESCRIPTION OF VARIABLE
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C-----------------------------------------------------------------------
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C CALLING ARGUMENTS:
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C MEMORY NAME TYPE DESCRIPTION
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C --- ---- --- -----------
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C P NPSRF I/U NUMBER OF POINTS THAT DEFINE THE SURFACE
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C P NFSRF I/U NUMBER OF SURFACES
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C P LINKSRF I/U CONNECTIVITY OF SURFACES OF SIZE (4*NFSRF),
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C NUMBERS REFER TO LOCATIONS IN XYZSRF ARRAY
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C P XYZSRF I/U XYZ COORDS OF POINTS DEFINING SURFACE
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C P NPTS I/U NUMBER OF POINTS TO BE SEARCHED
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C P XYZPTS I/U XYZ COORDS OF POINTS TO BE SEARCHED
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C P TOLSRCH I/U PROXIMITY TOLERANCE FOR POINT-TO-SURFACE SEARCH
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C P NISR I/U NUMBER OF INTEGER SEARCH RESULTS (>=1)
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C P NRSR I/U NUMBER OF REAL SEARCH RESULTS (>=4)
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C P NISS I/U NUMBER OF INTEGER SEARCH SCRATCH (=5)
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C P NRSS I/U NUMBER OF REAL SEARCH SCRATCH (=10)
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C P ISRCHR -/O INTEGER SEARCH RESULTS
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C P RSRCHR -/O REAL SEARCH RESULTS
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C P LBLK I/U VECTOR BLOCKING PARAMETER (RECOMMEND 512 ON CRAY)
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C S LIST -/- LIST OF POTENTIAL CONTACTS FOR A SURFACE
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C S IND -/- INDEX ARRAY INDICATING COORD. ORDER OF EACH POINT
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C S IRNK -/- RANK ARRAY
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C S IRNK2 -/- RANK ARRAY (INDIRECT)
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C S INDX -/P INTERMEDIATE LIST OF POTENTIAL PAIRS (CONSTRUCTED
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C AFTER THE INTERSECTION OF TWO OF THREE LISTS)
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C S ILO -/- SEARCH BOX MINIMUM INDEX
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C S IUP -/- SEARCH BOX MAXIMUM INDEX
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C S XMIN -/- SEARCH BOX MINIMUM DIMENSION
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C S XMAX -/- SEARCH BOX MAXIMUM DIMENSION
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C S ISCR -/- INTEGER SCRATCH MEMORY
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C S RSCR -/- REAL SCRATCH MEMORY
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C P IERR -/O ERROR FLAG
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C-----------------------------------------------------------------------
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include 'tapes.blk'
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C INPUT/OUTPUT ARRAYS
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DIMENSION
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* LINKSRF(4,NFSRF), XYZSRF(NPSRF,3),
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* XYZPTS(NPTS,3),
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* ISRCHR(NISR,NPTS), RSRCHR(NRSR,NPTS)
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DIMENSION
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* LIST(NPTS), IND(NPTS,3), IRNK(NPTS,3),
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* IRNK2(NPTS,3,2), INDX(NPTS)
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DIMENSION
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* ILO(LBLK,3), IUP(LBLK,3), IDP(LBLK),
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* IDS(LBLK)
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DIMENSION
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* XMIN(LBLK,3), XMAX(LBLK,3), ISCR(NISS*LBLK),
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* RSCR(NRSS*LBLK)
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C ISRCHR and RSRCHR must be initialized to zero
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DO 1 I = 1, NPTS
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DO 2 J = 1, NISR
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ISRCHR(J,I) = 0
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2 CONTINUE
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DO 3 K = 1, NRSR
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RSRCHR(K,I) = 0.
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3 CONTINUE
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1 CONTINUE
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IF( NISR .LT. 1 .OR. NRSR .LT. 4 .OR. NISS .LT. 5 .OR.
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* NRSS .LT. 10 )THEN
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IERR = 1
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RETURN
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ENDIF
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C DIMENSION OF COORDINATES
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NDIM = 3
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C ZERO SEARCH-PAIR COUNTER
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KOUNTS = 0
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C CALL SORTING ROUTINE TO MAKE RANK ARRAYS
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CALL MKRNK( NPTS,NPTS,NDIM,XYZPTS,IND,IRNK,IRNK2 )
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C LOOP OVER SURFACES AND SEARCH FOR POINTS WITHIN CAPTURE BOX
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DO 100 IFSRF = 1, NFSRF, LBLK
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NE = MIN(LBLK,NFSRF-IFSRF+1)
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C CONSTRUCT THE BOUNDING BOX FOR NE SURFACES
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DO 110 J = 1, NE
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JFSRF = IFSRF + J - 1
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NI = LINKSRF(1,JFSRF)
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NJ = LINKSRF(2,JFSRF)
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NK = LINKSRF(3,JFSRF)
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NL = LINKSRF(4,JFSRF)
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XMINMS = MIN(XYZSRF(NI,1),XYZSRF(NJ,1),
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* XYZSRF(NK,1),XYZSRF(NL,1))
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XMAXMS = MAX(XYZSRF(NI,1),XYZSRF(NJ,1),
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* XYZSRF(NK,1),XYZSRF(NL,1))
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YMINMS = MIN(XYZSRF(NI,2),XYZSRF(NJ,2),
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* XYZSRF(NK,2),XYZSRF(NL,2))
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YMAXMS = MAX(XYZSRF(NI,2),XYZSRF(NJ,2),
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* XYZSRF(NK,2),XYZSRF(NL,2))
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ZMINMS = MIN(XYZSRF(NI,3),XYZSRF(NJ,3),
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* XYZSRF(NK,3),XYZSRF(NL,3))
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ZMAXMS = MAX(XYZSRF(NI,3),XYZSRF(NJ,3),
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* XYZSRF(NK,3),XYZSRF(NL,3))
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XDEL = XMAXMS - XMINMS
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YDEL = YMAXMS - YMINMS
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ZDEL = ZMAXMS - ZMINMS
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TOLER = TOLSRCH * MAX(XDEL,YDEL,ZDEL)
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XMIN(J,1) = XMINMS - TOLER
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XMAX(J,1) = XMAXMS + TOLER
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XMIN(J,2) = YMINMS - TOLER
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XMAX(J,2) = YMAXMS + TOLER
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XMIN(J,3) = ZMINMS - TOLER
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XMAX(J,3) = ZMAXMS + TOLER
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110 CONTINUE
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DO 120 IDIM = 1, NDIM
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CALL GETBND( LBLK, NE, XYZPTS(1,IDIM), IND(1,IDIM),
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* NPTS, XMIN(1,IDIM), XMAX(1,IDIM),
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* NPTS, ILO(1,IDIM), IUP(1,IDIM),
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* ISCR, RSCR )
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120 CONTINUE
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DO 130 J = 1, NE
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JFSRF = IFSRF + J - 1
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CALL MKLSTV(NPTS,IND,IRNK2,IUP,ILO,INDX,J,LIST,NLIST,
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* LBLK,NDIM)
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DO 140 K = 1, NLIST
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LVAL = LIST(K)
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CALL SHLSRC(
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* NDIM, NPTS, NPSRF, NFSRF, NISR,
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* NRSR, NRSS, XYZSRF, XYZPTS, LINKSRF,
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* ISRCHR, RSRCHR, LVAL, JFSRF, TOLSRCH,
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* IERR )
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140 CONTINUE
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130 CONTINUE
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100 CONTINUE
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RETURN
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END
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