r1buf3.F

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!||====================================================================
!||    r1buf3        ../starter/source/elements/spring/r1buf3.F
!||--- called by ------------------------------------------------------
!||    rinit3        ../starter/source/elements/spring/rinit3.F
!||--- uses       -----------------------------------------------------
!||====================================================================
      SUBROUTINE r1buf3(OFF   ,GEO   ,X   ,AL  ,IX,
     .                  IPOS  ,IGEO  )
      use element_mod , only : nixr
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "vect01_c.inc"
#include      "param_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER IX(NIXR,*),IGEO(NPROPGI,*)
      my_real
     .   off(*), geo(npropg,*), x(3,*), al(*),ipos(5,*)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I, J, I1, I2, USENS
C     REAL
      my_real
     .   ex, ey, ez
C-----------------------------------------------
      DO i=lft,llt
        j=i+nft
        usens=igeo(3,ix(1,j))
        IF (usens <= 0) THEN
C         no sensor or Isflag=1
          off(i)=one
        ELSE
          off(i)=-ten
        ENDIF
      ENDDO
C
      DO j=1,5
        DO i=lft,llt
         ipos(j,i)= zero
        ENDDO
      ENDDO
C
      DO i=lft,llt
        j=i+nft
        i1=ix(2,j)
        i2=ix(3,j)
        ex=x(1,i2)-x(1,i1)
        ey=x(2,i2)-x(2,i1)
        ez=x(3,i2)-x(3,i1)
        al(i)=sqrt(ex*ex+ey*ey+ez*ez)
      ENDDO
C
      RETURN
      END