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C $Header: /u/gcmpack/MITgcm/pkg/flt/flt_functions.F,v 1.1 2001/09/13 17:43:55 adcroft Exp $ |
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C $Name: $ |
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|
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#include "FLT_CPPOPTIONS.h" |
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|
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_RL function global2local_i( |
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I rG, |
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I bi, |
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I bj, |
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I mythid |
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& ) |
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|
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c ================================================================== |
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c FUNCTION global2local_i |
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c ================================================================== |
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c |
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c o Converts global x-coordinates (grid) to local index for specific |
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c tile |
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c |
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c ================================================================== |
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c FUNCTION global2local_i |
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c ================================================================== |
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|
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c == global variables == |
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|
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#include "EEPARAMS.h" |
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#include "SIZE.h" |
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#include "GRID.h" |
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#include "PARAMS.h" |
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|
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c == routine arguments == |
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|
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integer mythid, bi, bj |
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_RL rG, fp, fm, dist, xlo, xhi |
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INTEGER i, iG |
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|
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c == local variables == |
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|
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|
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c == end of interface == |
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do i=0,sNx |
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|
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iG = myXGlobalLo + (bi-1)*sNx |
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xlo = xc(i, 1,bi,bj) |
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if (i.eq.0) xlo = xc(i,1,bi,bj)-delX(iG) |
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xhi = xc(i+1,1,bi,bj) |
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if (i.eq.sNx) xhi = xc(i,1,bi,bj)+delX(iG+i-1) |
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|
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if (xlo .le. rG .and. xhi .gt. rG) then |
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dist = xhi - xlo |
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fp = (xhi - rG) / dist |
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fm = (rG - xlo) / dist |
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global2local_i = fp*i + fm*(i+1) |
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goto 100 |
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endif |
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enddo |
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|
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100 continue |
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|
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return |
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end |
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|
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|
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_RL function global2local_j( |
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I rG, |
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I bi, |
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I bj, |
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I mythid |
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& ) |
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|
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c ================================================================== |
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c FUNCTION global2local_j |
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c ================================================================== |
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c |
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c o Converts global y-coordinates (grid) to local index for specific |
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c tile |
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c |
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c |
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c started: Arne Biastoch abiastoch@ucsd.edu 07-AUG-2000 |
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c |
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c |
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c ================================================================== |
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c FUNCTION global2local_j |
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c ================================================================== |
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|
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c == global variables == |
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|
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#include "EEPARAMS.h" |
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#include "SIZE.h" |
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#include "GRID.h" |
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#include "PARAMS.h" |
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|
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c == routine arguments == |
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|
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integer mythid, bi, bj |
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_RL rG, fp, fm, dist, ylo, yhi |
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INTEGER j, jG |
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|
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c == local variables == |
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|
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|
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c == end of interface == |
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|
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do j=0,sNy |
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|
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jG = myYGlobalLo + (bj-1)*sNy |
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ylo = yc(1,j, bi,bj) |
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if (j.eq.0) ylo = yc(1,j,bi,bj)-delY(jG) |
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yhi = yc(1,j+1,bi,bj) |
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if (j.eq.sNy) yhi = yc(1,j,bi,bj)+delY(jG+j-1) |
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|
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if (ylo .le. rG .and. yhi .gt. rG) then |
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dist = yhi - ylo |
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fp = (yhi - rG) / dist |
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fm = (rG - ylo) / dist |
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global2local_j = fp*j + fm*(j+1) |
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goto 100 |
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endif |
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enddo |
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|
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100 continue |
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|
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return |
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end |
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|
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_RL function global2local_k( |
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I rG, |
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I bi, |
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I bj, |
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I mythid |
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& ) |
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|
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c ================================================================== |
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c FUNCTION global2local_k |
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c ================================================================== |
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c |
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c o Converts global z-coordinates (grid) to local index for specific |
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c tile |
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c |
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c |
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c started: Arne Biastoch abiastoch@ucsd.edu 07-AUG-2000 |
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c |
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c |
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c ================================================================== |
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c FUNCTION global2local_k |
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c ================================================================== |
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|
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c == global variables == |
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|
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#include "EEPARAMS.h" |
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#include "SIZE.h" |
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#include "GRID.h" |
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#include "PARAMS.h" |
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|
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c == routine arguments == |
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|
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integer mythid, bi, bj |
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_RL rG, fp, fm, dist, zlo, zhi |
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INTEGER k |
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|
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c == local variables == |
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|
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|
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c == end of interface == |
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do k=0,Nr |
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|
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zlo = rC(k) |
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if (k.eq.0) zlo = rC(k)-drF(1)*0.5 |
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zhi = rC(k+1) |
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if (k.eq.Nr) zhi = rC(k)+drF(Nr)*0.5 |
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|
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if (zlo .le. rG .and. zhi .gt. rG) then |
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dist = zhi - zlo |
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fp = (zhi - rG) / dist |
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fm = (rG - zlo) / dist |
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global2local_k = fp*k + fm*(k+1) |
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goto 100 |
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endif |
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enddo |
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|
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100 continue |
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|
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return |
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end |
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