dxwall.F File Reference

#include "implicit_f.inc"
#include "com01_c.inc"
#include "task_c.inc"

Go to the source code of this file.

Functions/Subroutines
subroutine	dxwall (x, rwl, msr, xmin, ymin, zmin, xmax, ymax, zmax, fr_wall)

Function/Subroutine Documentation

dxwall()

subroutine dxwall	(		x,
			rwl,
		integer	msr,
			xmin,
			ymin,
			zmin,
			xmax,
			ymax,
			zmax,
		integer, dimension(nspmd+2)	fr_wall )

Definition at line 32 of file dxwall.F.

C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
#include      "com01_c.inc"
#include      "task_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER MSR,FR_WALL(NSPMD+2)
C     REAL
      my_real
     .   x(3,*), rwl(*),xmin ,ymin ,zmin  ,xmax ,ymax  , zmax
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      my_real
     .   xwl, ywl, zwl,xn,yn,zn,d,dx,dy,dz, r, v1, v2, v3, vv1, vv2,
     .   vv3, vv
      REAL R4
C-----------------------------------------------
C
       xn =rwl(1)
       yn =rwl(2)
       zn =rwl(3)
      IF (nspmd == 1) THEN
        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
      ELSE
         CALL spmd_agetmsr(fr_wall,x,msr,xwl,ywl,zwl,rwl)
C
      END IF 
      IF (ispmd==0) THEN
      dx = xmax - xmin
      dy = ymax - ymin
      dz = zmax - zmin
C
      r = zep707*max(dx,dy,dz)
      IF (xn == zero .AND. yn == zero .AND. zn /= zero ) THEN
        v1 = zep707
        v2 = zep707
        v3 = zero
      ELSE
        v1 = zero
        v2 = zep707
        v3 = zep707
      ENDIF
      vv1 = v2 * zn - v3 * yn
      vv2 = v3 * xn - v1 * zn
      vv3 = v1 * yn - v2 * xn
      vv = sqrt(vv1*vv1 + vv2*vv2 + vv3*vv3)
      IF(vv<=half)THEN
        IF (xn == zero .AND. yn == zero .AND. zn /= zero ) THEN
          v1 = -zep707
          v2 = zep707
          v3 = zero        
        ELSE 
          v1 = zero
          v2 = -zep707
          v3 = zep707  
        ENDIF      
        vv1 = v2 * zn - v3 * yn
        vv2 = v3 * xn - v1 * zn
        vv3 = v1 * yn - v2 * xn
        vv = sqrt(vv1*vv1 + vv2*vv2 + vv3*vv3)
      ENDIF
      vv1 = r*vv1/vv
      vv2 = r*vv2/vv
      vv3 = r*vv3/vv
C
      v1 = vv2 * zn - vv3 * yn
      v2 = vv3 * xn - vv1 * zn
      v3 = vv1 * yn - vv2 * xn
C
      r4 = xwl + v1
      CALL write_r_c(r4,1)
      r4 = ywl + v2
      CALL write_r_c(r4,1)
      r4 = zwl + v3
      CALL write_r_c(r4,1)
      r4 = xwl + vv1
      CALL write_r_c(r4,1)
      r4 = ywl + vv2
      CALL write_r_c(r4,1)
      r4 = zwl + vv3
      CALL write_r_c(r4,1)
      r4 = xwl - v1
      CALL write_r_c(r4,1)
      r4 = ywl - v2
      CALL write_r_c(r4,1)
      r4 = zwl - v3
      CALL write_r_c(r4,1)
      r4 = xwl - vv1
      CALL write_r_c(r4,1)
      r4 = ywl - vv2
      CALL write_r_c(r4,1)
      r4 = zwl - vv3
      CALL write_r_c(r4,1)
      ENDIF
C
      RETURN