!-------------------------------------- LICENCE BEGIN ------------------------------------
!Environment Canada - Atmospheric Science and Technology License/Disclaimer, 
!                     version 3; Last Modified: May 7, 2008.
!This is free but copyrighted software; you can use/redistribute/modify it under the terms 
!of the Environment Canada - Atmospheric Science and Technology License/Disclaimer 
!version 3 or (at your option) any later version that should be found at: 
!http://collaboration.cmc.ec.gc.ca/science/rpn.comm/license.html 
!
!This software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
!without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
!See the above mentioned License/Disclaimer for more details.
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!CANADA, H9P 1J3; or send e-mail to service.rpn@ec.gc.ca
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***s/r adw_interp_tr - Equivalent to adw_interp for TRAJECTORY  
*
#include "model_macros_f.h"
*

      subroutine adw_interp_tr ( F_outm, F_inm, F_um, F_vm, 7,10
     %                           F_wind_L, F_mono_L, DIST_DIM, Nk,i0,in,j0,jn )
*
      implicit none
*
      logical F_wind_L, F_mono_L
*
      integer DIST_DIM, Nk, i0,in,j0,jn
*
      real F_outm (DIST_SHAPE, Nk),
     %     F_inm  (DIST_SHAPE, Nk)
      real F_um(*), F_vm(*)
*
*author
*     monique tanguay
*
*revision
* v3_00 - Tanguay M.        - initial MPI version 
* v3_20 - Tanguay M.        - Lagrange 3D
* v3_30 - Tanguay M.        - Adapt TL/AD to Adw_interp_type_S
*
*language
*     fortran 77
*
*object
*     see id section
*
*TRAJ of
*arguments
*______________________________________________________________________
*              |                                                 |     |
* NAME         | DESCRIPTION                                     | I/O |
*--------------|-------------------------------------------------|-----|
*              |                                                 |     |
* F_out        | interpolated field                              |  o  |
* F_in         | field to interpolate                            |  i  |
* F_wind_L     | switch: .true. : field to interpolate is a wind |  i  |
*              |                  like quantity                  |  i  |
* F_mono_L     | switch: .true. : monotonic interpolation        |  i  |
*______________|_________________________________________________|_____|
*
*implicits
#include "glb_ld.cdk"
#include "adw.cdk"
#include "adwm.cdk"
************************************************************************
      integer i, j, k, nij, nijk, nijkag, n, dest_ni
*
      real dummy
*
***********************************************************************
      if (Adw_interp_type_S(1:5).ne.'LAG3D')
     $    call gem_stop ('ADW_INTERP_TR: Adw_interp_type_S(1:5).ne.LAG3D not done',-1)
*
      nij    = l_ni   *l_nj
      nijk   = l_ni   *l_nj   *l_nk
      nijkag = Adw_nit*Adw_njt*l_nk
*
************************************************************************
*
* Adjust field to advection grid
*
* Compute extension beyond the pole if appropriate
*
************************************************************************
      if (G_lam) then
          n=0
          dest_ni=l_ni
      else
          n=999
          dest_ni=G_ni
      endif
      call rpn_comm_xch_halox (F_inm, LDIST_DIM, l_ni, l_nj, l_nk,
     % Adw_halox, Adw_haloy, G_periodx, G_periody, F_um, -Adw_halox+1,
     % Adw_nic+Adw_halox, -Adw_haloy+1, Adw_njc+Adw_haloy, dest_ni, n)
*
      if (.not.G_lam) then
      if ( l_south ) then
*     
         if ( F_wind_L ) then
            call adw_pol0 (F_um, 0, Adw_nic,Adw_halox,Adw_njc,
     %                     Adw_haloy,l_nk)
         else
            call adw_pols (F_um,Adw_wx_8, 0, Adw_nic,Adw_halox,
     %                     Adw_njc,Adw_haloy,l_nk)
         endif
            call adw_polx (F_um,Adw_xg_8,.true.,Adw_nic,Adw_halox,
     %                     Adw_njc,Adw_haloy,l_nk)
      endif
*     
      if ( l_north ) then
*
         if ( F_wind_L ) then
            call adw_pol0 (F_um,Adw_njc+1,Adw_nic,Adw_halox,Adw_njc,
     %                     Adw_haloy,l_nk)
         else
            call adw_pols (F_um,Adw_wx_8, Adw_njc+1,Adw_nic,Adw_halox,
     %                     Adw_njc,Adw_haloy,l_nk)
         endif
            call adw_polx (F_um,Adw_xg_8,.false.,Adw_nic,Adw_halox,
     %                     Adw_njc,Adw_haloy,l_nk)
      endif
      endif
************************************************************************
*
* Compute second derivative for cubic spline in the vertical
*
************************************************************************
      if ( .not. Adw_interp_type_S(1:5).eq.'LAG3D' ) call adw_vder ( F_vm, F_um, Adw_nit, Adw_njt, l_nk ) 
************************************************************************
*
* Interpolate
*
************************************************************************
      if ( .not. Adw_interp_type_S(1:5).eq.'LAG3D' ) then
      call adw_tricub ( Adwm_wrkcm, F_um, F_vm,
     %                  Adwm_n1m, Adwm_capx1m, Adwm_xgg1m,
     %                  Adwm_xdd1m, Adwm_capy1m, Adwm_ygg1m,
     %                  Adwm_ydd1m, Adwm_capz1m,Adwm_cz1m, 
     %                  nijk, F_mono_L,i0,in,j0,jn,l_nk)
      else
      call adw_tricub_lag3d ( Adwm_wrkcm, F_um,
     %                        Adwm_capx1m, Adwm_capy1m, Adwm_capz1m,
     %                        nijk, F_mono_L,i0,in,j0,jn,l_nk)
      endif
*
      do k = 1, l_nk
      do j = j0,jn
      do i = i0,in
      F_outm(i,j,k) = Adwm_wrkcm ( (k-1)*nij+(j-1)*l_ni+i )
      enddo
      enddo
      enddo
*
      return
      end