r2coork3.F

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!||====================================================================
!||    r2coork3   ../engine/source/elements/spring/r2coork3.F
!||--- called by ------------------------------------------------------
!||    r8ke3      ../engine/source/elements/spring/r8ke3.F
!||====================================================================
      SUBROUTINE r2coork3(JFT    ,JLT    ,X      ,NCC   ,PID    ,
     2                    NGL    ,R11    ,R12   ,R13    ,R21    ,
     3                    R22    ,R23    ,R31   ,R32    ,R33    ,
     4                    SKEW   ,GEO    ,OFFG  ,OFF    ,AL    ,
     5                    IGEO )
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   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "param_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER JFT, JLT
      INTEGER NCC(NIXR,*),PID(*),NGL(*), IGEO(NPROPGI,*)
C     REAL
      my_real
     .   x(3,*),offg(*)  ,off(*),al(3,*),
     .   r11(*),r12(*),r13(*),
     .   r21(*),r22(*),r23(*),
     .   r31(*),r32(*),r33(*), geo(npropg,*),skew(lskew,*)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I, J,NC1(MVSIZ),NC2(MVSIZ),ISK
C     REAL
      my_real
     .   X1(MVSIZ), X2(MVSIZ),Y1(MVSIZ), Y2(MVSIZ),
     .   z1(mvsiz), z2(mvsiz),x21(mvsiz),y21(mvsiz),z21(mvsiz)
C-----------------------------------------------
C
      DO i=jft, jlt
       pid(i)=ncc(1,i)
       ngl(i)=ncc(5,i)
       nc1(i)=ncc(2,i)
       nc2(i)=ncc(3,i)
      ENDDO
C----------------------------
C     LOCAL SYSTEM
C----------------------------
      DO  i=jft, jlt
       isk=igeo(2,pid(i))
       r11(i)=skew(1,isk)
       r21(i)=skew(2,isk)
       r31(i)=skew(3,isk)
       r12(i)=skew(4,isk)
       r22(i)=skew(5,isk)
       r32(i)=skew(6,isk)
       r13(i)=skew(7,isk)
       r23(i)=skew(8,isk)
       r33(i)=skew(9,isk)
      ENDDO
      DO i=jft, jlt
       x1(i)=x(1,nc1(i))
       y1(i)=x(2,nc1(i))
       z1(i)=x(3,nc1(i))
       x2(i)=x(1,nc2(i))
       y2(i)=x(2,nc2(i))
       z2(i)=x(3,nc2(i))
      ENDDO
      DO  i=jft, jlt
       x21(i)=x2(i)-x1(i)
       y21(i)=y2(i)-y1(i)
       z21(i)=z2(i)-z1(i)
       al(1,i)=x21(i)*r11(i)+y21(i)*r21(i)+z21(i)*r31(i)
       al(2,i)=x21(i)*r12(i)+y21(i)*r22(i)+z21(i)*r32(i)
       al(3,i)=x21(i)*r13(i)+y21(i)*r23(i)+z21(i)*r33(i)
      ENDDO
      DO i=jft,jlt
       off(i)=offg(i)
      ENDDO
C
      RETURN
      END