dxwals.F

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!||====================================================================
!||    dxwals      ../starter/source/output/anim/dxwals.F
!||--- called by ------------------------------------------------------
!||    dxyzsect    ../starter/source/output/anim/dxyzsect.F
!||--- calls      -----------------------------------------------------
!||====================================================================
      SUBROUTINE dxwals(X ,RWL ,MSR)
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER MSR
C     REAL
      my_real
     .   x(3,*), rwl(*)
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I,J,L
C     REAL
      my_real
     .   xwl, ywl, zwl,xn,yn,zn,d,dx,dy,dz,xx,yy,zz,r,xx0,yy0,zz0,
     .   x0(6),y0(6),z0(6),dx0(6),dy0(6),dz0(6),dx1(6),dy1(6),dz1(6)
      REAL R4
      DATA dx0/ 0., 0., 0., 0., 0., 0./
      DATA dy0/ 1.,-1., 0., 0., 0., 0./
      DATA dz0/ 0., 0.,-1., 1., 1.,-1./
      DATA dx1/ 1., 1., 1., 1., 0., 0./
      DATA dy1/ 0., 0., 0., 0., 1., 1./
      DATA dz1/ 0., 0., 0., 0., 0., 0./
      DATA x0 /-3.,-3.,-3.,-3.,-3., 3./
      DATA y0 /-3., 3.,-3., 3.,-3.,-3./
      DATA z0 /-3., 3., 3.,-3.,-3., 3./
C-----------------------------------------------
C
       xn =rwl(1)
       yn =rwl(2)
       zn =rwl(3)
       IF(msr==0)THEN
        xwl=rwl(4)
        ywl=rwl(5)
        zwl=rwl(6)
       ELSE
        xwl=x(1,msr)
        ywl=x(2,msr)
        zwl=x(3,msr)
       ENDIF
C
      r = half*rwl(7)
C
      DO i = 1,6
        xx0 = x0(i)
        yy0 = y0(i)
        zz0 = z0(i)
        DO j = 1,7
          xx = xx0
          yy = yy0
          zz = zz0
          DO l = 1,7
            d = r/sqrt(xx*xx+yy*yy+zz*zz)
            r4 = d*xx + xwl
            CALL write_r_c(r4,1)
            r4 = d*yy + ywl
            CALL write_r_c(r4,1)
            r4 = d*zz + zwl
            CALL write_r_c(r4,1)
            xx = xx + dx0(i)
            yy = yy + dy0(i)
            zz = zz + dz0(i)
          ENDDO
          xx0 = xx0 + dx1(i)
          yy0 = yy0 + dy1(i)
          zz0 = zz0 + dz1(i)
        ENDDO
      ENDDO
C
      RETURN
      END