i3loc3.F

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!||====================================================================
!||    i3loc3    ../engine/source/interfaces/inter3d/i3loc3.F
!||--- called by ------------------------------------------------------
!||    i6main    ../engine/source/interfaces/inter3d/i6main.F
!||    i9main3   ../engine/source/interfaces/int09/i9main3.F
!||    intvo3    ../engine/source/interfaces/inter3d/intvo3.F
!||====================================================================
      SUBROUTINE i3loc3(
     1   X,       IRECT,   LMSR,    MSR,
     2   NSV,     ILOC,    NSEG,    XI,
     3   YI,      ZI,      XFACE,   LFT,
     4   LLT,     NFT)
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   G l o b a l   P a r a m e t e r s
C-----------------------------------------------
#include      "mvsiz_p.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER, INTENT(INOUT) :: LFT
      INTEGER, INTENT(INOUT) :: LLT
      INTEGER, INTENT(INOUT) :: NFT
      INTEGER IRECT(4,*), LMSR(*), MSR(*), NSV(*), ILOC(*), NSEG(*)
C     REAL
      my_real
     .   x(3,*)
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
      my_real, DIMENSION(MVSIZ), INTENT(INOUT) ::  xi,yi,zi,xface
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I, IL, IG, JL, JLNEW, LL2, LL1, LL, LG, J, K, M, N, JG,
     .   KG, MG, NG
C     REAL
      my_real
     .   gms, cms,
     .   dms, ems, fms
C-----------------------------------------------
 
      DO 100 i=lft,llt
      xface(i)=one
      il=i+nft
      ig=nsv(il)
      xi(i)=x(1,ig)
      yi(i)=x(2,ig)
      zi(i)=x(3,ig)
 100  CONTINUE
C
      DO 130 i=lft,llt
      il=i+nft
      ig=nsv(il)
      jl=iloc(il)
      jlnew=jl
      ll2=nseg(jl+1)-1
      ll1=nseg(jl)
      gms=1.e30
      DO 120 ll=ll1,ll2
      lg=lmsr(ll)
      j=irect(1,lg)
      k=irect(2,lg)
      m=irect(3,lg)
      n=irect(4,lg)
      jg=msr(j)
      kg=msr(k)
      mg=msr(m)
      ng=msr(n)
      cms=(xi(i)-x(1,jg))**2+(yi(i)-x(2,jg))**2+(zi(i)-x(3,jg))**2
      dms=(xi(i)-x(1,kg))**2+(yi(i)-x(2,kg))**2+(zi(i)-x(3,kg))**2
      ems=(xi(i)-x(1,mg))**2+(yi(i)-x(2,mg))**2+(zi(i)-x(3,mg))**2
      fms=(xi(i)-x(1,ng))**2+(yi(i)-x(2,ng))**2+(zi(i)-x(3,ng))**2
      IF(cms<gms) THEN
       gms=cms
       jlnew=j
      ENDIF
      IF(dms<gms) THEN
       gms=dms
       jlnew=k
      ENDIF
      IF(ems<gms) THEN
       gms=ems
       jlnew=m
      ENDIF
      IF(fms<gms) THEN
       gms=fms
       jlnew=n
      ENDIF
 120  CONTINUE
      iloc(il)=jlnew
 130  CONTINUE
C
      RETURN
      END